hotspot/src/share/vm/runtime/globals.hpp
author johnc
Wed, 06 Feb 2013 14:50:37 -0800
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permissions -rw-r--r--
7052429: G1: Avoid unnecessary scanning of humongous regions during concurrent marking Summary: Skip unnecessary scanning of bitmap for unmarked humongous objects/regions. Reviewed-by: jwilhelm, johnc Contributed-by: Tao Mao <tao.mao@oracle.com>
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/*
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 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_RUNTIME_GLOBALS_HPP
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#define SHARE_VM_RUNTIME_GLOBALS_HPP
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#include "utilities/debug.hpp"
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// use this for flags that are true per default in the tiered build
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// but false in non-tiered builds, and vice versa
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#ifdef TIERED
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#define  trueInTiered true
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#define falseInTiered false
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#else
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#define  trueInTiered false
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#define falseInTiered true
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#endif
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#ifdef TARGET_ARCH_x86
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# include "globals_x86.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "globals_sparc.hpp"
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#endif
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#ifdef TARGET_ARCH_zero
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# include "globals_zero.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "globals_arm.hpp"
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#endif
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#ifdef TARGET_ARCH_ppc
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# include "globals_ppc.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_linux
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# include "globals_linux.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "globals_solaris.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "globals_windows.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_bsd
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# include "globals_bsd.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_linux_x86
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# include "globals_linux_x86.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_linux_sparc
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# include "globals_linux_sparc.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_linux_zero
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# include "globals_linux_zero.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_solaris_x86
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# include "globals_solaris_x86.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_solaris_sparc
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# include "globals_solaris_sparc.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_windows_x86
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# include "globals_windows_x86.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_linux_arm
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# include "globals_linux_arm.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_linux_ppc
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# include "globals_linux_ppc.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_bsd_x86
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# include "globals_bsd_x86.hpp"
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#endif
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#ifdef TARGET_OS_ARCH_bsd_zero
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# include "globals_bsd_zero.hpp"
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#endif
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#ifdef COMPILER1
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#ifdef TARGET_ARCH_x86
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# include "c1_globals_x86.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "c1_globals_sparc.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "c1_globals_arm.hpp"
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#endif
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#ifdef TARGET_ARCH_ppc
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# include "c1_globals_ppc.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_linux
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# include "c1_globals_linux.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "c1_globals_solaris.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "c1_globals_windows.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_bsd
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# include "c1_globals_bsd.hpp"
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#endif
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#endif
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#ifdef COMPILER2
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#ifdef TARGET_ARCH_x86
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# include "c2_globals_x86.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "c2_globals_sparc.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "c2_globals_arm.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_linux
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# include "c2_globals_linux.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_solaris
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# include "c2_globals_solaris.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_windows
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# include "c2_globals_windows.hpp"
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#endif
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#ifdef TARGET_OS_FAMILY_bsd
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# include "c2_globals_bsd.hpp"
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#endif
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#endif
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#ifdef SHARK
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#ifdef TARGET_ARCH_zero
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# include "shark_globals_zero.hpp"
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#endif
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#endif
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#if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK)
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define_pd_global(bool, BackgroundCompilation,        false);
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define_pd_global(bool, UseTLAB,                      false);
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define_pd_global(bool, CICompileOSR,                 false);
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define_pd_global(bool, UseTypeProfile,               false);
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define_pd_global(bool, UseOnStackReplacement,        false);
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define_pd_global(bool, InlineIntrinsics,             false);
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define_pd_global(bool, PreferInterpreterNativeStubs, true);
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define_pd_global(bool, ProfileInterpreter,           false);
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define_pd_global(bool, ProfileTraps,                 false);
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define_pd_global(bool, TieredCompilation,            false);
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define_pd_global(intx, CompileThreshold,             0);
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define_pd_global(intx, BackEdgeThreshold,            0);
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define_pd_global(intx, OnStackReplacePercentage,     0);
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define_pd_global(bool, ResizeTLAB,                   false);
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define_pd_global(intx, FreqInlineSize,               0);
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define_pd_global(intx, InlineSmallCode,              0);
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define_pd_global(intx, NewSizeThreadIncrease,        4*K);
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define_pd_global(intx, InlineClassNatives,           true);
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define_pd_global(intx, InlineUnsafeOps,              true);
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define_pd_global(intx, InitialCodeCacheSize,         160*K);
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define_pd_global(intx, ReservedCodeCacheSize,        32*M);
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define_pd_global(intx, CodeCacheExpansionSize,       32*K);
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define_pd_global(intx, CodeCacheMinBlockLength,      1);
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define_pd_global(uintx,MetaspaceSize,    ScaleForWordSize(4*M));
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define_pd_global(bool, NeverActAsServerClassMachine, true);
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define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
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#define CI_COMPILER_COUNT 0
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#else
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#ifdef COMPILER2
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#define CI_COMPILER_COUNT 2
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#else
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#define CI_COMPILER_COUNT 1
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#endif // COMPILER2
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#endif // no compilers
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// string type aliases used only in this file
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typedef const char* ccstr;
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typedef const char* ccstrlist;   // represents string arguments which accumulate
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enum FlagValueOrigin {
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  DEFAULT          = 0,
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  COMMAND_LINE     = 1,
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  ENVIRON_VAR      = 2,
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  CONFIG_FILE      = 3,
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  MANAGEMENT       = 4,
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  ERGONOMIC        = 5,
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  ATTACH_ON_DEMAND = 6,
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  INTERNAL         = 99
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};
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struct Flag {
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  const char *type;
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  const char *name;
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  void*       addr;
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  NOT_PRODUCT(const char *doc;)
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  const char *kind;
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  FlagValueOrigin origin;
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  // points to all Flags static array
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  static Flag *flags;
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  // number of flags
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  static size_t numFlags;
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  static Flag* find_flag(char* name, size_t length, bool allow_locked = false);
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  bool is_bool() const        { return strcmp(type, "bool") == 0; }
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  bool get_bool() const       { return *((bool*) addr); }
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  void set_bool(bool value)   { *((bool*) addr) = value; }
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  bool is_intx()  const       { return strcmp(type, "intx")  == 0; }
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  intx get_intx() const       { return *((intx*) addr); }
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  void set_intx(intx value)   { *((intx*) addr) = value; }
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  bool is_uintx() const       { return strcmp(type, "uintx") == 0; }
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  uintx get_uintx() const     { return *((uintx*) addr); }
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  void set_uintx(uintx value) { *((uintx*) addr) = value; }
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  bool is_uint64_t() const          { return strcmp(type, "uint64_t") == 0; }
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  uint64_t get_uint64_t() const     { return *((uint64_t*) addr); }
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  void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; }
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  bool is_double() const        { return strcmp(type, "double") == 0; }
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  double get_double() const     { return *((double*) addr); }
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  void set_double(double value) { *((double*) addr) = value; }
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  bool is_ccstr() const          { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; }
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  bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; }
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  ccstr get_ccstr() const     { return *((ccstr*) addr); }
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  void set_ccstr(ccstr value) { *((ccstr*) addr) = value; }
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  bool is_unlocker() const;
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  bool is_unlocked() const;
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  bool is_writeable() const;
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  bool is_external() const;
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  bool is_unlocker_ext() const;
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  bool is_unlocked_ext() const;
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  bool is_writeable_ext() const;
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  bool is_external_ext() const;
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  void get_locked_message(char*, int) const;
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  void get_locked_message_ext(char*, int) const;
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  void print_on(outputStream* st, bool withComments = false );
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  void print_as_flag(outputStream* st);
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};
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// debug flags control various aspects of the VM and are global accessible
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// use FlagSetting to temporarily change some debug flag
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// e.g. FlagSetting fs(DebugThisAndThat, true);
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// restored to previous value upon leaving scope
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class FlagSetting {
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  bool val;
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  bool* flag;
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 public:
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  FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
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  ~FlagSetting()                       { *flag = val; }
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};
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class CounterSetting {
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  intx* counter;
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  CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
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  ~CounterSetting()         { (*counter)--; }
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};
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class IntFlagSetting {
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  intx val;
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  intx* flag;
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 public:
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  IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; }
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  ~IntFlagSetting()                       { *flag = val; }
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};
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class DoubleFlagSetting {
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  double val;
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  double* flag;
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 public:
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  DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
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  ~DoubleFlagSetting()                           { *flag = val; }
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};
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class CommandLineFlags {
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 public:
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  static bool boolAt(char* name, size_t len, bool* value);
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  static bool boolAt(char* name, bool* value)      { return boolAt(name, strlen(name), value); }
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  static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin);
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  static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin)   { return boolAtPut(name, strlen(name), value, origin); }
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  static bool intxAt(char* name, size_t len, intx* value);
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  static bool intxAt(char* name, intx* value)      { return intxAt(name, strlen(name), value); }
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  static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin);
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  static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin)   { return intxAtPut(name, strlen(name), value, origin); }
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  static bool uintxAt(char* name, size_t len, uintx* value);
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  static bool uintxAt(char* name, uintx* value)    { return uintxAt(name, strlen(name), value); }
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  static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin);
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  static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); }
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  static bool uint64_tAt(char* name, size_t len, uint64_t* value);
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  static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); }
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  static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin);
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  static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); }
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  static bool doubleAt(char* name, size_t len, double* value);
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  static bool doubleAt(char* name, double* value)    { return doubleAt(name, strlen(name), value); }
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  static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin);
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  static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); }
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  static bool ccstrAt(char* name, size_t len, ccstr* value);
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  static bool ccstrAt(char* name, ccstr* value)    { return ccstrAt(name, strlen(name), value); }
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  static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin);
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  static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); }
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   338
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   339
  // Returns false if name is not a command line flag.
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   340
  static bool wasSetOnCmdline(const char* name, bool* value);
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   341
  static void printSetFlags(outputStream* out);
1
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  static void printFlags(outputStream* out, bool withComments);
1
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   344
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  static void verify() PRODUCT_RETURN;
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   346
};
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   347
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   348
// use this for flags that are true by default in the debug version but
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   349
// false in the optimized version, and vice versa
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#ifdef ASSERT
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#define trueInDebug  true
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   352
#define falseInDebug false
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   353
#else
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#define trueInDebug  false
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   355
#define falseInDebug true
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   356
#endif
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   357
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   358
// use this for flags that are true per default in the product build
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   359
// but false in development builds, and vice versa
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   360
#ifdef PRODUCT
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   361
#define trueInProduct  true
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   362
#define falseInProduct false
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   363
#else
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   364
#define trueInProduct  false
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   365
#define falseInProduct true
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   366
#endif
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   367
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   368
#ifdef JAVASE_EMBEDDED
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   369
#define falseInEmbedded false
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   370
#else
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   371
#define falseInEmbedded true
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   372
#endif
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   373
1
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   374
// develop flags are settable / visible only during development and are constant in the PRODUCT version
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   375
// product flags are always settable / visible
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   376
// notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
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   377
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   378
// A flag must be declared with one of the following types:
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   379
// bool, intx, uintx, ccstr.
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parents:
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   380
// The type "ccstr" is an alias for "const char*" and is used
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parents:
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   381
// only in this file, because the macrology requires single-token type names.
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parents:
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   382
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parents:
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   383
// Note: Diagnostic options not meant for VM tuning or for product modes.
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parents:
diff changeset
   384
// They are to be used for VM quality assurance or field diagnosis
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parents:
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   385
// of VM bugs.  They are hidden so that users will not be encouraged to
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parents:
diff changeset
   386
// try them as if they were VM ordinary execution options.  However, they
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parents:
diff changeset
   387
// are available in the product version of the VM.  Under instruction
489c9b5090e2 Initial load
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parents:
diff changeset
   388
// from support engineers, VM customers can turn them on to collect
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parents:
diff changeset
   389
// diagnostic information about VM problems.  To use a VM diagnostic
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parents:
diff changeset
   390
// option, you must first specify +UnlockDiagnosticVMOptions.
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parents:
diff changeset
   391
// (This master switch also affects the behavior of -Xprintflags.)
1382
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parents: 1380
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   392
//
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   393
// experimental flags are in support of features that are not
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
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   394
//    part of the officially supported product, but are available
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   395
//    for experimenting with. They could, for example, be performance
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   396
//    features that may not have undergone full or rigorous QA, but which may
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   397
//    help performance in some cases and released for experimentation
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   398
//    by the community of users and developers. This flag also allows one to
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   399
//    be able to build a fully supported product that nonetheless also
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   400
//    ships with some unsupported, lightly tested, experimental features.
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   401
//    Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   402
//    UnlockExperimentalVMOptions flag, which allows the control and
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   403
//    modification of the experimental flags.
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   404
//
6763
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
   405
// Nota bene: neither diagnostic nor experimental options should be used casually,
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
   406
//    and they are not supported on production loads, except under explicit
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
   407
//    direction from support engineers.
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
   408
//
1
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parents:
diff changeset
   409
// manageable flags are writeable external product flags.
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parents:
diff changeset
   410
//    They are dynamically writeable through the JDK management interface
489c9b5090e2 Initial load
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parents:
diff changeset
   411
//    (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
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parents:
diff changeset
   412
//    These flags are external exported interface (see CCC).  The list of
489c9b5090e2 Initial load
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parents:
diff changeset
   413
//    manageable flags can be queried programmatically through the management
489c9b5090e2 Initial load
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parents:
diff changeset
   414
//    interface.
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duke
parents:
diff changeset
   415
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
//    A flag can be made as "manageable" only if
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
//    - the flag is defined in a CCC as an external exported interface.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
//    - the VM implementation supports dynamic setting of the flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
//      This implies that the VM must *always* query the flag variable
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duke
parents:
diff changeset
   420
//      and not reuse state related to the flag state at any given time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
//    - you want the flag to be queried programmatically by the customers.
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duke
parents:
diff changeset
   422
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
// product_rw flags are writeable internal product flags.
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duke
parents:
diff changeset
   424
//    They are like "manageable" flags but for internal/private use.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
//    The list of product_rw flags are internal/private flags which
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
//    may be changed/removed in a future release.  It can be set
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duke
parents:
diff changeset
   427
//    through the management interface to get/set value
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
//    when the name of flag is supplied.
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duke
parents:
diff changeset
   429
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
//    A flag can be made as "product_rw" only if
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
//    - the VM implementation supports dynamic setting of the flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
//      This implies that the VM must *always* query the flag variable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
//      and not reuse state related to the flag state at any given time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
// Note that when there is a need to support develop flags to be writeable,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
// it can be done in the same way as product_rw.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
1382
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   438
#define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
   439
                                                                            \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
   440
  lp64_product(bool, UseCompressedOops, false,                              \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
   441
            "Use 32-bit object references in 64-bit VM  "                   \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
   442
            "lp64_product means flag is always constant in 32 bit VM")      \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
   443
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
   444
  lp64_product(bool, UseCompressedKlassPointers, false,                     \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
   445
            "Use 32-bit klass pointers in 64-bit VM  "                      \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
   446
            "lp64_product means flag is always constant in 32 bit VM")      \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
                                                                            \
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   448
  notproduct(bool, CheckCompressedOops, true,                               \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   449
            "generate checks in encoding/decoding code in debug VM")        \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   450
                                                                            \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   451
  product_pd(uintx, HeapBaseMinAddress,                                     \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   452
            "OS specific low limit for heap base address")                  \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   453
                                                                            \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   454
  diagnostic(bool, PrintCompressedOopsMode, false,                          \
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2141
diff changeset
   455
            "Print compressed oops base address and encoding mode")         \
1129
ec4dfac10759 6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents: 1062
diff changeset
   456
                                                                            \
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5539
diff changeset
   457
  lp64_product(intx, ObjectAlignmentInBytes, 8,                             \
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5539
diff changeset
   458
          "Default object alignment in bytes, 8 is minimum")                \
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5539
diff changeset
   459
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  /* UseMembar is theoretically a temp flag used for memory barrier         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
   * removal testing.  It was supposed to be removed before FCS but has     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
   * been re-added (see 6401008) */                                         \
6965
4ef36b2a6a3a 6989297: Integrate additional portability improvements
bobv
parents: 6466
diff changeset
   463
  product_pd(bool, UseMembar,                                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
          "(Unstable) Issues membars on thread state transitions")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
                                                                            \
8107
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   466
  /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms    \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   467
   * that don't support it.  This will be replaced by processor detection   \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   468
   * logic.                                                                 \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   469
   */                                                                       \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   470
  product(bool, UsePPCLWSYNC, true,                                         \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   471
          "Use lwsync instruction if true, else use slower sync")           \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
   472
                                                                            \
10022
377345fb5fb5 7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents: 10020
diff changeset
   473
  develop(bool, CleanChunkPoolAsync, falseInEmbedded,                       \
377345fb5fb5 7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents: 10020
diff changeset
   474
          "Whether to clean the chunk pool asynchronously")                 \
377345fb5fb5 7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents: 10020
diff changeset
   475
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
   476
  /* Temporary: See 6948537 */                                              \
5431
5c4054a50dbb 6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents: 5403
diff changeset
   477
  experimental(bool, UseMemSetInBOT, true,                                  \
5c4054a50dbb 6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents: 5403
diff changeset
   478
          "(Unstable) uses memset in BOT updates in GC code")               \
5c4054a50dbb 6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents: 5403
diff changeset
   479
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug,                  \
1382
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   481
          "Enable normal processing of flags relating to field diagnostics")\
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   482
                                                                            \
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   483
  experimental(bool, UnlockExperimentalVMOptions, false,                    \
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
   484
          "Enable normal processing of flags relating to experimental features")\
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  product(bool, JavaMonitorsInStackTrace, true,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
          "Print info. about Java monitor locks when the stacks are dumped")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  product_pd(bool, UseLargePages,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
          "Use large page memory")                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
                                                                            \
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   492
  product_pd(bool, UseLargePagesIndividualAllocation,                       \
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   493
          "Allocate large pages individually for better affinity")          \
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   494
                                                                            \
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   495
  develop(bool, LargePagesIndividualAllocationInjectError, false,           \
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   496
          "Fail large pages individual allocation")                         \
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1409
diff changeset
   497
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  develop(bool, TracePageSizes, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
          "Trace page size selection and usage.")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  product(bool, UseNUMA, false,                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
          "Use NUMA if available")                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
                                                                            \
10494
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   504
  product(bool, UseNUMAInterleaving, false,                                 \
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   505
          "Interleave memory across NUMA nodes if available")               \
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   506
                                                                            \
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   507
  product(uintx, NUMAInterleaveGranularity, 2*M,                            \
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   508
          "Granularity to use for NUMA interleaving on Windows OS")         \
3f347ed8bd3c 7082969: NUMA interleaving
iveresov
parents: 10267
diff changeset
   509
                                                                            \
1615
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1608
diff changeset
   510
  product(bool, ForceNUMA, false,                                           \
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1608
diff changeset
   511
          "Force NUMA optimizations on single-node/UMA systems")            \
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1608
diff changeset
   512
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  product(intx, NUMAChunkResizeWeight, 20,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
          "Percentage (0-100) used to weight the current sample when "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
          "computing exponentially decaying average for "                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
          "AdaptiveNUMAChunkSizing")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  product(intx, NUMASpaceResizeRate, 1*G,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
          "Do not reallocate more that this amount per collection")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
  product(bool, UseAdaptiveNUMAChunkSizing, true,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
          "Enable adaptive chunk sizing for NUMA")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  product(bool, NUMAStats, false,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
          "Print NUMA stats in detailed heap information")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  product(intx, NUMAPageScanRate, 256,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
          "Maximum number of pages to include in the page scan procedure")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  product_pd(bool, NeedsDeoptSuspend,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
          "True for register window machines (sparc/ia64)")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  product(intx, UseSSE, 99,                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
          "Highest supported SSE instructions set on x86/x64")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
                                                                            \
14132
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   536
  product(bool, UseAES, false,                                               \
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   537
          "Control whether AES instructions can be used on x86/x64")        \
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   538
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  product(uintx, LargePageSizeInBytes, 0,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
          "Large page size (0 to let VM choose the page size")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  product(uintx, LargePageHeapSizeThreshold, 128*M,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
          "Use large pages if max heap is at least this big")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  product(bool, ForceTimeHighResolution, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
          "Using high time resolution(For Win32 only)")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  develop(bool, TraceItables, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
          "Trace initialization and use of itables")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
  develop(bool, TracePcPatching, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
          "Trace usage of frame::patch_pc")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  develop(bool, TraceJumps, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
          "Trace assembly jumps in thread ring buffer")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  develop(bool, TraceRelocator, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
          "Trace the bytecode relocator")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  develop(bool, TraceLongCompiles, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
          "Print out every time compilation is longer than "                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
          "a given threashold")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  develop(bool, SafepointALot, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
          "Generates a lot of safepoints. Works with "                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
          "GuaranteedSafepointInterval")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  product_pd(bool, BackgroundCompilation,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
          "A thread requesting compilation is not blocked during "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
          "compilation")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  product(bool, PrintVMQWaitTime, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
          "Prints out the waiting time in VM operation queue")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  develop(bool, NoYieldsInMicrolock, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
          "Disable yields in microlock")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  develop(bool, TraceOopMapGeneration, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
          "Shows oopmap generation")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  product(bool, MethodFlushing, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
          "Reclamation of zombie and not-entrant methods")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
  develop(bool, VerifyStack, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
          "Verify stack of each thread when it is entering a runtime call") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
                                                                            \
10983
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 10963
diff changeset
   587
  diagnostic(bool, ForceUnreachable, false,                                 \
9ab65f4cec18 7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents: 10963
diff changeset
   588
          "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  notproduct(bool, StressDerivedPointers, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
          "Force scavenge when a derived pointers is detected on stack "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
          "after rtm call")                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  develop(bool, TraceDerivedPointers, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
          "Trace traversal of derived pointers on stack")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  notproduct(bool, TraceCodeBlobStacks, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
          "Trace stack-walk of codeblobs")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  product(bool, PrintJNIResolving, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
          "Used to implement -v:jni")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  notproduct(bool, PrintRewrites, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
          "Print methods that are being rewritten")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  product(bool, UseInlineCaches, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
          "Use Inline Caches for virtual calls ")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  develop(bool, InlineArrayCopy, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
          "inline arraycopy native that is known to be part of "            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
          "base library DLL")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  develop(bool, InlineObjectHash, true,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
          "inline Object::hashCode() native that is known to be part "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
          "of base library DLL")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
  develop(bool, InlineNatives, true,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
          "inline natives that are known to be part of base library DLL")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  develop(bool, InlineMathNatives, true,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
          "inline SinD, CosD, etc.")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  develop(bool, InlineClassNatives, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
          "inline Class.isInstance, etc")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  develop(bool, InlineThreadNatives, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
          "inline Thread.currentThread, etc")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  develop(bool, InlineUnsafeOps, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
          "inline memory ops (native methods) from sun.misc.Unsafe")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
                                                                            \
11637
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   632
  product(bool, CriticalJNINatives, true,                                   \
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   633
          "check for critical JNI entry points")                            \
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   634
                                                                            \
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   635
  notproduct(bool, StressCriticalJNINatives, false,                         \
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   636
            "Exercise register saving code in critical natives")            \
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 11636
diff changeset
   637
                                                                            \
2348
4e71ed4c2709 6761600: Use sse 4.2 in intrinsics
cfang
parents: 2342
diff changeset
   638
  product(bool, UseSSE42Intrinsics, false,                                  \
4e71ed4c2709 6761600: Use sse 4.2 in intrinsics
cfang
parents: 2342
diff changeset
   639
          "SSE4.2 versions of intrinsics")                                  \
4e71ed4c2709 6761600: Use sse 4.2 in intrinsics
cfang
parents: 2342
diff changeset
   640
                                                                            \
14132
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   641
  product(bool, UseAESIntrinsics, false,                                    \
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   642
          "use intrinsics for AES versions of crypto")                      \
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
   643
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  develop(bool, TraceCallFixup, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
          "traces all call fixups")                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  develop(bool, DeoptimizeALot, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
          "deoptimize at every exit from the runtime system")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
                                                                            \
1553
fc10c169d15d 6772413: code cleanup
kvn
parents: 1550
diff changeset
   650
  notproduct(ccstrlist, DeoptimizeOnlyAt, "",                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
          "a comma separated list of bcis to deoptimize at")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  product(bool, DeoptimizeRandom, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
          "deoptimize random frames on random exit from the runtime system")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  notproduct(bool, ZombieALot, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
          "creates zombies (non-entrant) at exit from the runt. system")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
                                                                            \
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7896
diff changeset
   659
  product(bool, UnlinkSymbolsALot, false,                                   \
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7896
diff changeset
   660
          "unlink unreferenced symbols from the symbol table at safepoints")\
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7896
diff changeset
   661
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  notproduct(bool, WalkStackALot, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
          "trace stack (no print) at every exit from the runtime system")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
                                                                            \
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10569
diff changeset
   665
  product(bool, Debugging, false,                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
          "set when executing debug methods in debug.ccp "                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
          "(to prevent triggering assertions)")                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
  notproduct(bool, StrictSafepointChecks, trueInDebug,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
          "Enable strict checks that safepoints cannot happen for threads " \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
          "that used No_Safepoint_Verifier")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  notproduct(bool, VerifyLastFrame, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
          "Verify oops on last frame on entry to VM")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
  develop(bool, TraceHandleAllocation, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
          "Prints out warnings when suspicious many handles are allocated") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
  product(bool, UseCompilerSafepoints, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
          "Stop at safepoints in compiled code")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
  product(bool, UseSplitVerifier, true,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
          "use split verifier with StackMapTable attributes")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
  product(bool, FailOverToOldVerifier, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
          "fail over to old verifier when split verifier fails")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
  develop(bool, ShowSafepointMsgs, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
          "Show msg. about safepoint synch.")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
  product(bool, SafepointTimeout, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
          "Time out and warn or fail after SafepointTimeoutDelay "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
          "milliseconds if failed to reach safepoint")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  develop(bool, DieOnSafepointTimeout, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
          "Die upon failure to reach safepoint (see SafepointTimeout)")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  /* typically, at most a few retries are needed */                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  product(intx, SuspendRetryCount, 50,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
          "Maximum retry count for an external suspend request")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  product(intx, SuspendRetryDelay, 5,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
          "Milliseconds to delay per retry (* current_retry_count)")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  product(bool, AssertOnSuspendWaitFailure, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
          "Assert/Guarantee on external suspend wait failure")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  product(bool, TraceSuspendWaitFailures, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
          "Trace external suspend wait failures")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  product(bool, MaxFDLimit, true,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
          "Bump the number of file descriptors to max in solaris.")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
                                                                            \
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11632
diff changeset
   715
  diagnostic(bool, LogEvents, true,                                         \
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11632
diff changeset
   716
             "Enable the various ring buffer event logs")                   \
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11632
diff changeset
   717
                                                                            \
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11632
diff changeset
   718
  diagnostic(intx, LogEventsBufferEntries, 10,                              \
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11632
diff changeset
   719
             "Enable the various ring buffer event logs")                   \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
  product(bool, BytecodeVerificationRemote, true,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
          "Enables the Java bytecode verifier for remote classes")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
  product(bool, BytecodeVerificationLocal, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
          "Enables the Java bytecode verifier for local classes")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
  develop(bool, ForceFloatExceptions, trueInDebug,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
          "Force exceptions on FP stack under/overflow")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
  develop(bool, VerifyStackAtCalls, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
          "Verify that the stack pointer is unchanged after calls")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
  develop(bool, TraceJavaAssertions, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
          "Trace java language assertions")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  notproduct(bool, CheckAssertionStatusDirectives, false,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
          "temporary - see javaClasses.cpp")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
  notproduct(bool, PrintMallocFree, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
          "Trace calls to C heap malloc/free allocation")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
                                                                            \
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 6062
diff changeset
   742
  product(bool, PrintOopAddress, false,                                     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
          "Always print the location of the oop")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  notproduct(bool, VerifyCodeCacheOften, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
          "Verify compiled-code cache often")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  develop(bool, ZapDeadCompiledLocals, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
          "Zap dead locals in compiler frames")                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  notproduct(bool, ZapDeadLocalsOld, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
          "Zap dead locals (old version, zaps all frames when "             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
          "entering the VM")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
  notproduct(bool, CheckOopishValues, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
          "Warn if value contains oop ( requires ZapDeadLocals)")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
  develop(bool, UseMallocOnly, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
          "use only malloc/free for allocation (no resource area/arena)")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  develop(bool, PrintMalloc, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
          "print all malloc/free calls")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
                                                                            \
8320
544210b4dd48 7017124: Fix some VM stats to avoid 32-bit overflow
kvn
parents: 8076
diff changeset
   764
  develop(bool, PrintMallocStatistics, false,                               \
544210b4dd48 7017124: Fix some VM stats to avoid 32-bit overflow
kvn
parents: 8076
diff changeset
   765
          "print malloc/free statistics")                                   \
544210b4dd48 7017124: Fix some VM stats to avoid 32-bit overflow
kvn
parents: 8076
diff changeset
   766
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  develop(bool, ZapResourceArea, trueInDebug,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
          "Zap freed resource/arena space with 0xABABABAB")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
  notproduct(bool, ZapVMHandleArea, trueInDebug,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
          "Zap freed VM handle space with 0xBCBCBCBC")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
  develop(bool, ZapJNIHandleArea, trueInDebug,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
          "Zap freed JNI handle space with 0xFEFEFEFE")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
                                                                            \
6762
f8d1b560700e 6423256: GC stacks should use a better data structure
jcoomes
parents: 6448
diff changeset
   776
  notproduct(bool, ZapStackSegments, trueInDebug,                           \
f8d1b560700e 6423256: GC stacks should use a better data structure
jcoomes
parents: 6448
diff changeset
   777
             "Zap allocated/freed Stack segments with 0xFADFADED")          \
f8d1b560700e 6423256: GC stacks should use a better data structure
jcoomes
parents: 6448
diff changeset
   778
                                                                            \
971
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   779
  develop(bool, ZapUnusedHeapArea, trueInDebug,                             \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
          "Zap unused heap space with 0xBAADBABE")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
                                                                            \
971
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   782
  develop(bool, TraceZapUnusedHeapArea, false,                              \
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   783
          "Trace zapping of unused heap space")                             \
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   784
                                                                            \
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   785
  develop(bool, CheckZapUnusedHeapArea, false,                              \
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   786
          "Check zapping of unused heap space")                             \
f0b20be4165d 6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents: 765
diff changeset
   787
                                                                            \
1668
8ec481b8f514 6578152: fill_region_with_object has usability and safety issues
jcoomes
parents: 1615
diff changeset
   788
  develop(bool, ZapFillerObjects, trueInDebug,                              \
8ec481b8f514 6578152: fill_region_with_object has usability and safety issues
jcoomes
parents: 1615
diff changeset
   789
          "Zap filler objects with 0xDEAFBABE")                             \
8ec481b8f514 6578152: fill_region_with_object has usability and safety issues
jcoomes
parents: 1615
diff changeset
   790
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  develop(bool, PrintVMMessages, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
          "Print vm messages on console")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  product(bool, PrintGCApplicationConcurrentTime, false,                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
          "Print the time the application has been running")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  product(bool, PrintGCApplicationStoppedTime, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
          "Print the time the application has been stopped")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
                                                                            \
13476
471200fb94fd 7116786: RFE: Detailed information on VerifyErrors
kamg
parents: 13197
diff changeset
   800
  diagnostic(bool, VerboseVerification, false,                              \
471200fb94fd 7116786: RFE: Detailed information on VerifyErrors
kamg
parents: 13197
diff changeset
   801
             "Display detailed verification details")                       \
471200fb94fd 7116786: RFE: Detailed information on VerifyErrors
kamg
parents: 13197
diff changeset
   802
                                                                            \
5403
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5251
diff changeset
   803
  notproduct(uintx, ErrorHandlerTest, 0,                                    \
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5251
diff changeset
   804
          "If > 0, provokes an error after VM initialization; the value"    \
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5251
diff changeset
   805
          "determines which error to provoke.  See test_error_handler()"    \
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5251
diff changeset
   806
          "in debug.cpp.")                                                  \
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5251
diff changeset
   807
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
  develop(bool, Verbose, false,                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
          "Prints additional debugging information from other modes")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  develop(bool, PrintMiscellaneous, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
          "Prints uncategorized debugging information (requires +Verbose)") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  develop(bool, WizardMode, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
          "Prints much more debugging information")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
  product(bool, ShowMessageBoxOnError, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
          "Keep process alive on VM fatal error")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
                                                                            \
8119
81eef1b06988 7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents: 8114
diff changeset
   820
  product(bool, CreateMinidumpOnCrash, false,                               \
81eef1b06988 7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents: 8114
diff changeset
   821
          "Create minidump on VM fatal error")                              \
81eef1b06988 7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents: 8114
diff changeset
   822
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
  product_pd(bool, UseOSErrorReporting,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
          "Let VM fatal error propagate to the OS (ie. WER on Windows)")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
  product(bool, SuppressFatalErrorMessage, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
          "Do NO Fatal Error report [Avoid deadlock]")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
  product(ccstrlist, OnError, "",                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
          "Run user-defined commands on fatal error; see VMError.cpp "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
          "for examples")                                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
  product(ccstrlist, OnOutOfMemoryError, "",                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
          "Run user-defined commands on first java.lang.OutOfMemoryError")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
                                                                            \
2141
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   836
  manageable(bool, HeapDumpBeforeFullGC, false,                             \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   837
          "Dump heap to file before any major stop-world GC")               \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   838
                                                                            \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   839
  manageable(bool, HeapDumpAfterFullGC, false,                              \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   840
          "Dump heap to file after any major stop-world GC")                \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
   841
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  manageable(bool, HeapDumpOnOutOfMemoryError, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
          "Dump heap to file when java.lang.OutOfMemoryError is thrown")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
  manageable(ccstr, HeapDumpPath, NULL,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
          "When HeapDumpOnOutOfMemoryError is on, the path (filename or"    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
          "directory) of the dump file (defaults to java_pid<pid>.hprof"    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
          "in the working directory)")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
  develop(uintx, SegmentedHeapDumpThreshold, 2*G,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
          "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
          "when the heap usage is larger than this")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  develop(uintx, HeapDumpSegmentSize, 1*G,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
          "Approximate segment size when generating a segmented heap dump") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  develop(bool, BreakAtWarning, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
          "Execute breakpoint upon encountering VM warning")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
  develop(bool, TraceVMOperation, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
          "Trace vm operations")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
  develop(bool, UseFakeTimers, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
          "Tells whether the VM should use system time or a fake timer")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
                                                                            \
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 13091
diff changeset
   866
  product(ccstr, NativeMemoryTracking, "off",                               \
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 13091
diff changeset
   867
          "Native memory tracking options")                                 \
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 13091
diff changeset
   868
                                                                            \
13861
619cff4bfb8b 7188594: Print statistic collected by NMT with VM flag
zgu
parents: 13739
diff changeset
   869
  diagnostic(bool, PrintNMTStatistics, false,                               \
619cff4bfb8b 7188594: Print statistic collected by NMT with VM flag
zgu
parents: 13739
diff changeset
   870
          "Print native memory tracking summary data if it is on")          \
619cff4bfb8b 7188594: Print statistic collected by NMT with VM flag
zgu
parents: 13739
diff changeset
   871
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  diagnostic(bool, LogCompilation, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
          "Log compilation activity in detail to hotspot.log or LogFile")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  product(bool, PrintCompilation, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
          "Print compilations")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
  diagnostic(bool, TraceNMethodInstalls, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
             "Trace nmethod intallation")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
                                                                            \
11195
48e0d7ae1378 7110058: change default for ScavengeRootsInCode to 2
twisti
parents: 10989
diff changeset
   881
  diagnostic(intx, ScavengeRootsInCode, 2,                                  \
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3610
diff changeset
   882
             "0: do not allow scavengable oops in the code cache; "         \
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3610
diff changeset
   883
             "1: allow scavenging from the code cache; "                    \
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3610
diff changeset
   884
             "2: emit as many constants as the compiler can see")           \
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3610
diff changeset
   885
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  product(bool, AlwaysRestoreFPU, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
          "Restore the FPU control word after every JNI call (expensive)")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
                                                                            \
10988
a3b2bd43ef4f 7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents: 10983
diff changeset
   889
  diagnostic(bool, PrintCompilation2, false,                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
          "Print additional statistics per compilation")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   892
  diagnostic(bool, PrintAdapterHandlers, false,                             \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
          "Print code generated for i2c/c2i adapters")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
                                                                            \
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13197
diff changeset
   895
  diagnostic(bool, VerifyAdapterCalls, trueInDebug,                         \
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13197
diff changeset
   896
          "Verify that i2c/c2i adapters are called properly")               \
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13197
diff changeset
   897
                                                                            \
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4754
diff changeset
   898
  develop(bool, VerifyAdapterSharing, false,                                \
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4754
diff changeset
   899
          "Verify that the code for shared adapters is the equivalent")     \
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4754
diff changeset
   900
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   901
  diagnostic(bool, PrintAssembly, false,                                    \
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   902
          "Print assembly code (using external disassembler.so)")           \
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   903
                                                                            \
1402
ccb40ce62b79 6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents: 1129
diff changeset
   904
  diagnostic(ccstr, PrintAssemblyOptions, NULL,                             \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   905
          "Options string passed to disassembler.so")                       \
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   906
                                                                            \
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   907
  diagnostic(bool, PrintNMethods, false,                                    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
          "Print assembly code for nmethods when generated")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   910
  diagnostic(bool, PrintNativeNMethods, false,                              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
          "Print assembly code for native nmethods when generated")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
  develop(bool, PrintDebugInfo, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
          "Print debug information for all nmethods when generated")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  develop(bool, PrintRelocations, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
          "Print relocation information for all nmethods when generated")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
  develop(bool, PrintDependencies, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
          "Print dependency information for all nmethods when generated")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
  develop(bool, PrintExceptionHandlers, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
          "Print exception handler tables for all nmethods when generated") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
                                                                            \
14835
70896cb93c35 8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents: 14490
diff changeset
   925
  develop(bool, StressCompiledExceptionHandlers, false,                     \
70896cb93c35 8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents: 14490
diff changeset
   926
         "Exercise compiled exception handlers")                            \
70896cb93c35 8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents: 14490
diff changeset
   927
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  develop(bool, InterceptOSException, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
          "Starts debugger when an implicit OS (e.g., NULL) "               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
          "exception happens")                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
                                                                            \
15201
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   932
  product(bool, PrintCodeCache, false,                                      \
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   933
          "Print the code cache memory usage when exiting")                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
  develop(bool, PrintCodeCache2, false,                                     \
15201
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   936
          "Print detailed usage info on the code cache when exiting")       \
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   937
                                                                            \
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   938
  product(bool, PrintCodeCacheOnCompilation, false,                         \
f3d755b11424 8005204: Code Cache Reduction: command line options implementation
vladidan
parents: 15107
diff changeset
   939
          "Print the code cache memory usage each time a method is compiled") \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
   941
  diagnostic(bool, PrintStubCode, false,                                    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
          "Print generated stub code")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
  product(bool, StackTraceInThrowable, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
          "Collect backtrace in throwable when exception happens")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
  product(bool, OmitStackTraceInFastThrow, true,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
          "Omit backtraces for some 'hot' exceptions in optimized code")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
  product(bool, ProfilerPrintByteCodeStatistics, false,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
          "Prints byte code statictics when dumping profiler output")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
  product(bool, ProfilerRecordPC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
          "Collects tick for each 16 byte interval of compiled code")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
                                                                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
   956
  product(bool, ProfileVM, false,                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
          "Profiles ticks that fall within VM (either in the VM Thread "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
          "or VM code called through stubs)")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
  product(bool, ProfileIntervals, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
          "Prints profiles for each interval (see ProfileIntervalsTicks)")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
  notproduct(bool, ProfilerCheckIntervals, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
          "Collect and print info on spacing of profiler ticks")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
  develop(bool, PrintJVMWarnings, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
          "Prints warnings for unimplemented JVM functions")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
                                                                            \
6967
c5ebdcf8372e 6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents: 6965
diff changeset
   969
  product(bool, PrintWarnings, true,                                        \
c5ebdcf8372e 6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents: 6965
diff changeset
   970
          "Prints JVM warnings to output stream")                           \
c5ebdcf8372e 6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents: 6965
diff changeset
   971
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
  notproduct(uintx, WarnOnStalledSpinLock, 0,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
          "Prints warnings for stalled SpinLocks")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  product(bool, RegisterFinalizersAtInit, true,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
          "Register finalizable objects at end of Object.<init> or "        \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
   977
          "after allocation")                                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
  develop(bool, RegisterReferences, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
          "Tells whether the VM should register soft/weak/final/phantom "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
          "references")                                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
  develop(bool, IgnoreRewrites, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
          "Supress rewrites of bytecodes in the oopmap generator. "         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
          "This is unsafe!")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  develop(bool, PrintCodeCacheExtension, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
          "Print extension of code cache")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
  develop(bool, UsePrivilegedStack, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
          "Enable the security JVM functions")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  develop(bool, ProtectionDomainVerification, true,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
          "Verifies protection domain before resolution in system "         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
          "dictionary")                                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
  product(bool, ClassUnloading, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
          "Do unloading of classes")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
  develop(bool, DisableStartThread, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
          "Disable starting of additional Java threads "                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
          "(for debugging only)")                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
  develop(bool, MemProfiling, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
          "Write memory usage profiling to log file")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
  notproduct(bool, PrintSystemDictionaryAtExit, false,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
          "Prints the system dictionary at exit")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
                                                                            \
11628
13155c0c00b4 7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents: 11601
diff changeset
  1010
  experimental(intx, PredictedLoadedClassCount, 0,                          \
13155c0c00b4 7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents: 11601
diff changeset
  1011
          "Experimental: Tune loaded class cache starting size.")           \
13155c0c00b4 7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents: 11601
diff changeset
  1012
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  diagnostic(bool, UnsyncloadClass, false,                                  \
1890
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1014
          "Unstable: VM calls loadClass unsynchronized. Custom "            \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1015
          "class loader  must call VM synchronized for findClass "          \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1016
          "and defineClass.")                                               \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1017
                                                                            \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1018
  product(bool, AlwaysLockClassLoader, false,                               \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1019
          "Require the VM to acquire the class loader lock before calling " \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1020
          "loadClass() even for class loaders registering "                 \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1021
          "as parallel capable")                                            \
1890
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1022
                                                                            \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1023
  product(bool, AllowParallelDefineClass, false,                            \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1024
          "Allow parallel defineClass requests for class loaders "          \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1025
          "registering as parallel capable")                                \
1890
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1026
                                                                            \
9ce941df84eb 4670071: loadClassInternal is too restrictive.
acorn
parents: 1671
diff changeset
  1027
  product(bool, MustCallLoadClassInternal, false,                           \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1028
          "Call loadClassInternal() rather than loadClass()")               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
  product_pd(bool, DontYieldALot,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
          "Throw away obvious excess yield calls (for SOLARIS only)")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
  product_pd(bool, ConvertSleepToYield,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
          "Converts sleep(0) to thread yield "                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
          "(may be off for SOLARIS to improve GUI)")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
  product(bool, ConvertYieldToSleep, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
          "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
          "behavior (SOLARIS only)")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
  product(bool, UseBoundThreads, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
          "Bind user level threads to kernel threads (for SOLARIS only)")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
  develop(bool, UseDetachedThreads, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
          "Use detached threads that are recycled upon termination "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
          "(for SOLARIS only)")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
  product(bool, UseLWPSynchronization, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
          "Use LWP-based instead of libthread-based synchronization "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
          "(SPARC only)")                                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
                                                                            \
1402
ccb40ce62b79 6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents: 1129
diff changeset
  1052
  product(ccstr, SyncKnobs, NULL,                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
          "(Unstable) Various monitor synchronization tunables")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  product(intx, EmitSync, 0,                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
          "(Unsafe,Unstable) "                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
          " Controls emission of inline sync fast-path code")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
                                                                            \
5710
d664086c0add 6852873: Reduce safepoint cleanup time
acorn
parents: 5539
diff changeset
  1059
  product(intx, MonitorBound, 0, "Bound Monitor population")                \
d664086c0add 6852873: Reduce safepoint cleanup time
acorn
parents: 5539
diff changeset
  1060
                                                                            \
d664086c0add 6852873: Reduce safepoint cleanup time
acorn
parents: 5539
diff changeset
  1061
  product(bool, MonitorInUseLists, false, "Track Monitors for Deflation")   \
d664086c0add 6852873: Reduce safepoint cleanup time
acorn
parents: 5539
diff changeset
  1062
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
  product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  product(intx, SyncVerbose, 0, "(Unstable)" )                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
  product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" )                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
                                                                            \
15193
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1069
  product(intx, hashCode, 5,                                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
         "(Unstable) select hashCode generation algorithm" )                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
  product(intx, WorkAroundNPTLTimedWaitHang, 1,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
         "(Unstable, Linux-specific)"                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
         " avoid NPTL-FUTEX hang pthread_cond_timedwait" )                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
                                                                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1076
  product(bool, FilterSpuriousWakeups, true,                                \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1077
          "Prevent spurious or premature wakeups from object.wait "         \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1078
          "(Solaris only)")                                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
  product(intx, NativeMonitorTimeout, -1, "(Unstable)" )                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
  product(intx, NativeMonitorFlags, 0, "(Unstable)" )                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
  product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" )                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
  develop(bool, UsePthreads, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
          "Use pthread-based instead of libthread-based synchronization "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
          "(SPARC only)")                                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
  product(bool, AdjustConcurrency, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
          "call thr_setconcurrency at thread create time to avoid "         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
          "LWP starvation on MP systems (For Solaris Only)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
  product(bool, ReduceSignalUsage, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
          "Reduce the use of OS signals in Java and/or the VM")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
  develop_pd(bool, ShareVtableStubs,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
          "Share vtable stubs (smaller code but worse branch prediction")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
  develop(bool, LoadLineNumberTables, true,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
          "Tells whether the class file parser loads line number tables")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  develop(bool, LoadLocalVariableTables, true,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
          "Tells whether the class file parser loads local variable tables")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
  develop(bool, LoadLocalVariableTypeTables, true,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
          "Tells whether the class file parser loads local variable type tables")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
  product(bool, AllowUserSignalHandlers, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
          "Do not complain if the application installs signal handlers "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
          "(Solaris & Linux only)")                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
  product(bool, UseSignalChaining, true,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
          "Use signal-chaining to invoke signal handlers installed "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
          "by the application (Solaris & Linux only)")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
  product(bool, UseAltSigs, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
          "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM "      \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1117
          "internal signals (Solaris only)")                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
  product(bool, AllowJNIEnvProxy, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
          "Allow JNIEnv proxies for jdbx")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
  product(bool, JNIDetachReleasesMonitors, true,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
          "JNI DetachCurrentThread releases monitors owned by thread")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  product(bool, RestoreMXCSROnJNICalls, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
          "Restore MXCSR when returning from JNI calls")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
  product(bool, CheckJNICalls, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
          "Verify all arguments to JNI calls")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
  product(bool, UseFastJNIAccessors, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
          "Use optimized versions of Get<Primitive>Field")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
  product(bool, EagerXrunInit, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
          "Eagerly initialize -Xrun libraries; allows startup profiling, "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
          " but not all -Xrun libraries may support the state of the VM at this time") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
  product(bool, PreserveAllAnnotations, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
          "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
  develop(uintx, PreallocatedOutOfMemoryErrorCount, 4,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
          "Number of OutOfMemoryErrors preallocated with backtrace")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
  product(bool, LazyBootClassLoader, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
          "Enable/disable lazy opening of boot class path entries")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
                                                                            \
1437
d1846c1c04c4 6532536: Optimize arraycopy stubs for Intel cpus
kvn
parents: 1434
diff changeset
  1147
  product(bool, UseXMMForArrayCopy, false,                                  \
d1846c1c04c4 6532536: Optimize arraycopy stubs for Intel cpus
kvn
parents: 1434
diff changeset
  1148
          "Use SSE2 MOVQ instruction for Arraycopy")                        \
d1846c1c04c4 6532536: Optimize arraycopy stubs for Intel cpus
kvn
parents: 1434
diff changeset
  1149
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
  product(intx, FieldsAllocationStyle, 1,                                   \
5250
ea743ca75cd9 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 5249
diff changeset
  1151
          "0 - type based with oops first, 1 - with oops last, "            \
ea743ca75cd9 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 5249
diff changeset
  1152
          "2 - oops in super and sub classes are together")                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
  product(bool, CompactFields, true,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
          "Allocate nonstatic fields in gaps between previous fields")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  notproduct(bool, PrintCompactFieldsSavings, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
          "Print how many words were saved with CompactFields")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
                                                                            \
15193
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1160
  notproduct(bool, PrintFieldLayout, false,                                 \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1161
          "Print field layout for each class")                              \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1162
                                                                            \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1163
  product(intx, ContendedPaddingWidth, 128,                                 \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1164
          "How many bytes to pad the fields/classes marked @Contended with")\
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1165
                                                                            \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1166
  product(bool, EnableContended, true,                                      \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1167
          "Enable @Contended annotation support")                           \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1168
                                                                            \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1169
  product(bool, RestrictContended, true,                                    \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1170
          "Restrict @Contended to trusted classes")                         \
8e6b5694267f 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 15101
diff changeset
  1171
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
  product(bool, UseBiasedLocking, true,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
          "Enable biased locking in JVM")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
  product(intx, BiasedLockingStartupDelay, 4000,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
          "Number of milliseconds to wait before enabling biased locking")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
  diagnostic(bool, PrintBiasedLockingStatistics, false,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
          "Print statistics of biased locking in JVM")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
  product(intx, BiasedLockingBulkRebiasThreshold, 20,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
          "Threshold of number of revocations per type to try to "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
          "rebias all objects in the heap of that type")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  product(intx, BiasedLockingBulkRevokeThreshold, 40,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
          "Threshold of number of revocations per type to permanently "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
          "revoke biases of all objects in the heap of that type")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  product(intx, BiasedLockingDecayTime, 25000,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
          "Decay time (in milliseconds) to re-enable bulk rebiasing of a "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
          "type after previous bulk rebias")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
  /* tracing */                                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
  notproduct(bool, TraceRuntimeCalls, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
          "Trace run-time calls")                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
  develop(bool, TraceJNICalls, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
          "Trace JNI calls")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
  notproduct(bool, TraceJVMCalls, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
          "Trace JVM calls")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
                                                                            \
1402
ccb40ce62b79 6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents: 1129
diff changeset
  1204
  product(ccstr, TraceJVMTI, NULL,                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
          "Trace flags for JVMTI functions and events")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  /* This option can change an EMCP method into an obsolete method. */      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  /* This can affect tests that except specific methods to be EMCP. */      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
  /* This option should be used with caution. */                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
  product(bool, StressLdcRewrite, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
          "Force ldc -> ldc_w rewrite during RedefineClasses")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
  product(intx, TraceRedefineClasses, 0,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
          "Trace level for JVMTI RedefineClasses")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
                                                                            \
5697
0cf7190475ee 6957080: MethodComparator needs stress testing
jrose
parents: 5694
diff changeset
  1216
  develop(bool, StressMethodComparator, false,                              \
0cf7190475ee 6957080: MethodComparator needs stress testing
jrose
parents: 5694
diff changeset
  1217
          "run the MethodComparator on all loaded methods")                 \
0cf7190475ee 6957080: MethodComparator needs stress testing
jrose
parents: 5694
diff changeset
  1218
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  /* change to false by default sometime after Mustang */                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  product(bool, VerifyMergedCPBytecodes, true,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
          "Verify bytecodes after RedefineClasses constant pool merging")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
  develop(bool, TraceJNIHandleAllocation, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
          "Trace allocation/deallocation of JNI handle blocks")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
  develop(bool, TraceThreadEvents, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
          "Trace all thread events")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
  develop(bool, TraceBytecodes, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
          "Trace bytecode execution")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  develop(bool, TraceClassInitialization, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
          "Trace class initialization")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  develop(bool, TraceExceptions, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
          "Trace exceptions")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  develop(bool, TraceICs, false,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
          "Trace inline cache changes")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  notproduct(bool, TraceInvocationCounterOverflow, false,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
          "Trace method invocation counter overflow")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  develop(bool, TraceInlineCacheClearing, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
          "Trace clearing of inline caches in nmethods")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  develop(bool, TraceDependencies, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
          "Trace dependencies")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  develop(bool, VerifyDependencies, trueInDebug,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
         "Exercise and verify the compilation dependency mechanism")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  develop(bool, TraceNewOopMapGeneration, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
          "Trace OopMapGeneration")                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  develop(bool, TraceNewOopMapGenerationDetailed, false,                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
          "Trace OopMapGeneration: print detailed cell states")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  develop(bool, TimeOopMap, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
          "Time calls to GenerateOopMap::compute_map() in sum")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
  develop(bool, TimeOopMap2, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
          "Time calls to GenerateOopMap::compute_map() individually")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  develop(bool, TraceMonitorMismatch, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
          "Trace monitor matching failures during OopMapGeneration")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
  develop(bool, TraceOopMapRewrites, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
          "Trace rewritting of method oops during oop map generation")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  develop(bool, TraceSafepoint, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
          "Trace safepoint operations")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  develop(bool, TraceICBuffer, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
          "Trace usage of IC buffer")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  develop(bool, TraceCompiledIC, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
          "Trace changes of compiled IC")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
  notproduct(bool, TraceZapDeadLocals, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
          "Trace zapping dead locals")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  develop(bool, TraceStartupTime, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
          "Trace setup time")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  develop(bool, TraceProtectionDomainVerification, false,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
          "Trace protection domain verifcation")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  develop(bool, TraceClearedExceptions, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
          "Prints when an exception is forcibly cleared")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
  product(bool, TraceClassResolution, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
          "Trace all constant pool resolutions (for debugging)")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
  product(bool, TraceBiasedLocking, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
          "Trace biased locking in JVM")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
  product(bool, TraceMonitorInflation, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
          "Trace monitor inflation in JVM")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
  /* gc */                                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
  product(bool, UseSerialGC, false,                                         \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1304
          "Use the serial garbage collector")                               \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1305
                                                                            \
4741
3b1373d466d2 6919980: G1: remove +UseG1GC from under experimental options (second attempt)
tonyp
parents: 4650
diff changeset
  1306
  product(bool, UseG1GC, false,                                             \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1307
          "Use the Garbage-First garbage collector")                        \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
  product(bool, UseParallelGC, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
          "Use the Parallel Scavenge garbage collector")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
  product(bool, UseParallelOldGC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
          "Use the Parallel Old garbage collector")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
  product(uintx, HeapMaximumCompactionInterval, 20,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
          "How often should we maximally compact the heap (not allowing "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
          "any dead space)")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  product(uintx, HeapFirstMaximumCompactionCount, 3,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
          "The collection count for the first maximum compaction")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
  product(bool, UseMaximumCompactionOnSystemGC, true,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
          "In the Parallel Old garbage collector maximum compaction for "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
          "a system GC")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
  product(uintx, ParallelOldDeadWoodLimiterMean, 50,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
          "The mean used by the par compact dead wood"                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
          "limiter (a number between 0-100).")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
  product(uintx, ParallelOldDeadWoodLimiterStdDev, 80,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
          "The standard deviation used by the par compact dead wood"        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
          "limiter (a number between 0-100).")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
  product(uintx, ParallelGCThreads, 0,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
          "Number of parallel threads parallel gc will use")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
                                                                            \
11174
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1337
  product(bool, UseDynamicNumberOfGCThreads, false,                         \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1338
          "Dynamically choose the number of parallel threads "              \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1339
          "parallel gc will use")                                           \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1340
                                                                            \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1341
  diagnostic(bool, ForceDynamicNumberOfGCThreads, false,                    \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1342
          "Force dynamic selection of the number of"                        \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1343
          "parallel threads parallel gc will use to aid debugging")         \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1344
                                                                            \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1345
  product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M),               \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1346
          "Size of heap (bytes) per GC thread used in calculating the "     \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1347
          "number of GC threads")                                           \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1348
                                                                            \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1349
  product(bool, TraceDynamicGCThreads, false,                               \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1350
          "Trace the dynamic GC thread usage")                              \
fccee5238e70 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents: 10991
diff changeset
  1351
                                                                            \
1670
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1352
  develop(bool, ParallelOldGCSplitALot, false,                              \
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1353
          "Provoke splitting (copying data from a young gen space to"       \
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1354
          "multiple destination spaces)")                                   \
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1355
                                                                            \
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1356
  develop(uintx, ParallelOldGCSplitInterval, 3,                             \
0deb85ea62d5 6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents: 1668
diff changeset
  1357
          "How often to provoke splitting a young gen space")               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
                                                                            \
5035
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1359
  product(uintx, ConcGCThreads, 0,                                          \
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1360
          "Number of threads concurrent gc will use")                       \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1361
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
  product(uintx, YoungPLABSize, 4096,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
          "Size of young gen promotion labs (in HeapWords)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
  product(uintx, OldPLABSize, 1024,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
          "Size of old gen promotion labs (in HeapWords)")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
  product(uintx, GCTaskTimeStampEntries, 200,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
          "Number of time stamp entries per gc worker thread")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
  product(bool, AlwaysTenure, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
          "Always tenure objects in eden. (ParallelGC only)")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
  product(bool, NeverTenure, false,                                         \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1375
          "Never tenure objects in eden, May tenure on overflow "           \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1376
          "(ParallelGC only)")                                              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
  product(bool, ScavengeBeforeFullGC, true,                                 \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1379
          "Scavenge youngest generation before each full GC, "              \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1380
          "used with UseParallelGC")                                        \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
  develop(bool, ScavengeWithObjectsInToSpace, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
          "Allow scavenges to occur when to_space contains objects.")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
  product(bool, UseConcMarkSweepGC, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
          "Use Concurrent Mark-Sweep GC in the old generation")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
  product(bool, ExplicitGCInvokesConcurrent, false,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
          "A System.gc() request invokes a concurrent collection;"          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
          " (effective only when UseConcMarkSweepGC)")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
  product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false,        \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1393
          "A System.gc() request invokes a concurrent collection and "      \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1394
          "also unloads classes during such a concurrent gc cycle "         \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1395
          "(effective only when UseConcMarkSweepGC)")                       \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
                                                                            \
5433
c182d4c3039e 6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents: 5431
diff changeset
  1397
  product(bool, GCLockerInvokesConcurrent, false,                           \
c182d4c3039e 6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents: 5431
diff changeset
  1398
          "The exit of a JNI CS necessitating a scavenge also"              \
c182d4c3039e 6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents: 5431
diff changeset
  1399
          " kicks off a bkgrd concurrent collection")                       \
c182d4c3039e 6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents: 5431
diff changeset
  1400
                                                                            \
7416
cfe3bfab7d48 6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents: 7397
diff changeset
  1401
  product(uintx, GCLockerEdenExpansionPercent, 5,                           \
cfe3bfab7d48 6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents: 7397
diff changeset
  1402
          "How much the GC can expand the eden by while the GC locker  "    \
cfe3bfab7d48 6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents: 7397
diff changeset
  1403
          "is active (as a percentage)")                                    \
cfe3bfab7d48 6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents: 7397
diff changeset
  1404
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
  develop(bool, UseCMSAdaptiveFreeLists, true,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
          "Use Adaptive Free Lists in the CMS generation")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  develop(bool, UseAsyncConcMarkSweepGC, true,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
          "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
  develop(bool, RotateCMSCollectionTypes, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
          "Rotate the CMS collections among concurrent and STW")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
  product(bool, UseCMSBestFit, true,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
          "Use CMS best fit allocation strategy")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
  product(bool, UseCMSCollectionPassing, true,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
          "Use passing of collection from background to foreground")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
  product(bool, UseParNewGC, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
          "Use parallel threads in the new generation.")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
  product(bool, ParallelGCVerbose, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
          "Verbose output for parallel GC.")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  product(intx, ParallelGCBufferWastePct, 10,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
          "wasted fraction of parallel allocation buffer.")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
                                                                            \
9624
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1429
  diagnostic(bool, ParallelGCRetainPLAB, false,                             \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1430
             "Retain parallel allocation buffers across scavenges; "        \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1431
             " -- disabled because this currently conflicts with "          \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1432
             " parallel card scanning under certain conditions ")           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
  product(intx, TargetPLABWastePct, 10,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
          "target wasted space in last buffer as pct of overall allocation")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
  product(uintx, PLABWeight, 75,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
          "Percentage (0-100) used to weight the current sample when"       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
          "computing exponentially decaying average for ResizePLAB.")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
  product(bool, ResizePLAB, true,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
          "Dynamically resize (survivor space) promotion labs")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  product(bool, PrintPLAB, false,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
          "Print (survivor space) promotion labs sizing decisions")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
  product(intx, ParGCArrayScanChunk, 50,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
          "Scan a subset and push remainder, if array is bigger than this") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
                                                                            \
2362
5e1bfddf919e 6824570: ParNew: Fix memory leak introduced in 6819891
ysr
parents: 2346
diff changeset
  1450
  product(bool, ParGCUseLocalOverflow, false,                               \
5e1bfddf919e 6824570: ParNew: Fix memory leak introduced in 6819891
ysr
parents: 2346
diff changeset
  1451
          "Instead of a global overflow list, use local overflow stacks")   \
5e1bfddf919e 6824570: ParNew: Fix memory leak introduced in 6819891
ysr
parents: 2346
diff changeset
  1452
                                                                            \
2346
3aa355016e90 6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
parents: 2259
diff changeset
  1453
  product(bool, ParGCTrimOverflow, true,                                    \
2362
5e1bfddf919e 6824570: ParNew: Fix memory leak introduced in 6819891
ysr
parents: 2346
diff changeset
  1454
          "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \
2346
3aa355016e90 6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
parents: 2259
diff changeset
  1455
                                                                            \
1910
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1456
  notproduct(bool, ParGCWorkQueueOverflowALot, false,                       \
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1457
          "Whether we should simulate work queue overflow in ParNew")       \
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1458
                                                                            \
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1459
  notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000,                   \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1460
          "An `interval' counter that determines how frequently "           \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1461
          "we simulate overflow; a smaller number increases frequency")     \
1910
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1462
                                                                            \
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1463
  product(uintx, ParGCDesiredObjsFromOverflowList, 20,                      \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
          "The desired number of objects to claim from the overflow list")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
                                                                            \
11396
917d8673b5ef 7121618: Change type of number of GC workers to unsigned int.
jmasa
parents: 11201
diff changeset
  1466
  diagnostic(uintx, ParGCStridesPerThread, 2,                               \
9624
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1467
          "The number of strides per worker thread that we divide up the "  \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1468
          "card table scanning work into")                                  \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1469
                                                                            \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1470
  diagnostic(intx, ParGCCardsPerStrideChunk, 256,                           \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1471
          "The number of cards in each chunk of the parallel chunks used "  \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1472
          "during card table scanning")                                     \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1473
                                                                            \
c3657c3324ee 6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents: 9426
diff changeset
  1474
  product(uintx, CMSParPromoteBlocksToClaim, 16,                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
          "Number of blocks to attempt to claim when refilling CMS LAB for "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
          "parallel GC.")                                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1478
  product(uintx, OldPLABWeight, 50,                                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1479
          "Percentage (0-100) used to weight the current sample when"       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1480
          "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1481
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1482
  product(bool, ResizeOldPLAB, true,                                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1483
          "Dynamically resize (old gen) promotion labs")                    \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1484
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1485
  product(bool, PrintOldPLAB, false,                                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1486
          "Print (old gen) promotion labs sizing decisions")                \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1487
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1488
  product(uintx, CMSOldPLABMin, 16,                                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1489
          "Min size of CMS gen promotion lab caches per worker per blksize")\
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1490
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1491
  product(uintx, CMSOldPLABMax, 1024,                                       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1492
          "Max size of CMS gen promotion lab caches per worker per blksize")\
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1493
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1494
  product(uintx, CMSOldPLABNumRefills, 4,                                   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1495
          "Nominal number of refills of CMS gen promotion lab cache"        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1496
          " per worker per block size")                                     \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1497
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1498
  product(bool, CMSOldPLABResizeQuicker, false,                             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1499
          "Whether to react on-the-fly during a scavenge to a sudden"       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1500
          " change in block demand rate")                                   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1501
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1502
  product(uintx, CMSOldPLABToleranceFactor, 4,                              \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1503
          "The tolerance of the phase-change detector for on-the-fly"       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1504
          " PLAB resizing during a scavenge")                               \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1505
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1506
  product(uintx, CMSOldPLABReactivityFactor, 2,                             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1507
          "The gain in the feedback loop for on-the-fly PLAB resizing"      \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1508
          " during a scavenge")                                             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1509
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
  product(bool, AlwaysPreTouch, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
          "It forces all freshly committed pages to be pre-touched.")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
                                                                            \
8687
264727307495 6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents: 8681
diff changeset
  1513
  product_pd(intx, CMSYoungGenPerWorker,                                    \
264727307495 6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents: 8681
diff changeset
  1514
          "The maximum size of young gen chosen by default per GC worker "  \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1515
          "thread available")                                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
  product(bool, CMSIncrementalMode, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
          "Whether CMS GC should operate in \"incremental\" mode")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
  product(uintx, CMSIncrementalDutyCycle, 10,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
          "CMS incremental mode duty cycle (a percentage, 0-100).  If"      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
          "CMSIncrementalPacing is enabled, then this is just the initial"  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
          "value")                                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
  product(bool, CMSIncrementalPacing, true,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
          "Whether the CMS incremental mode duty cycle should be "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
          "automatically adjusted")                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
  product(uintx, CMSIncrementalDutyCycleMin, 0,                             \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1530
          "Lower bound on the duty cycle when CMSIncrementalPacing is "     \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1531
          "enabled (a percentage, 0-100)")                                  \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  product(uintx, CMSIncrementalSafetyFactor, 10,                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1534
          "Percentage (0-100) used to add conservatism when computing the " \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1535
          "duty cycle")                                                     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
  product(uintx, CMSIncrementalOffset, 0,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
          "Percentage (0-100) by which the CMS incremental mode duty cycle" \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1539
          " is shifted to the right within the period between young GCs")   \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1541
  product(uintx, CMSExpAvgFactor, 50,                                       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1542
          "Percentage (0-100) used to weight the current sample when"       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1543
          "computing exponential averages for CMS statistics.")             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1544
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1545
  product(uintx, CMS_FLSWeight, 75,                                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1546
          "Percentage (0-100) used to weight the current sample when"       \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1547
          "computing exponentially decating averages for CMS FLS statistics.") \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1548
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1549
  product(uintx, CMS_FLSPadding, 1,                                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1550
          "The multiple of deviation from mean to use for buffering"        \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
          "against volatility in free list demand.")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
  product(uintx, FLSCoalescePolicy, 2,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
          "CMS: Aggression level for coalescing, increasing from 0 to 4")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1556
  product(bool, FLSAlwaysCoalesceLarge, false,                              \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1557
          "CMS: Larger free blocks are always available for coalescing")    \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1558
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1559
  product(double, FLSLargestBlockCoalesceProximity, 0.99,                   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1560
          "CMS: the smaller the percentage the greater the coalition force")\
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1561
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1562
  product(double, CMSSmallCoalSurplusPercent, 1.05,                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1563
          "CMS: the factor by which to inflate estimated demand of small"   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1564
          " block sizes to prevent coalescing with an adjoining block")     \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1565
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1566
  product(double, CMSLargeCoalSurplusPercent, 0.95,                         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1567
          "CMS: the factor by which to inflate estimated demand of large"   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1568
          " block sizes to prevent coalescing with an adjoining block")     \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1569
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1570
  product(double, CMSSmallSplitSurplusPercent, 1.10,                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1571
          "CMS: the factor by which to inflate estimated demand of small"   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1572
          " block sizes to prevent splitting to supply demand for smaller"  \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1573
          " blocks")                                                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1574
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1575
  product(double, CMSLargeSplitSurplusPercent, 1.00,                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1576
          "CMS: the factor by which to inflate estimated demand of large"   \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1577
          " block sizes to prevent splitting to supply demand for smaller"  \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1578
          " blocks")                                                        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1579
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1580
  product(bool, CMSExtrapolateSweep, false,                                 \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1581
          "CMS: cushion for block demand during sweep")                     \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1582
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1583
  product(uintx, CMS_SweepWeight, 75,                                       \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1584
          "Percentage (0-100) used to weight the current sample when "      \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1585
          "computing exponentially decaying average for inter-sweep "       \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1586
          "duration")                                                       \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1588
  product(uintx, CMS_SweepPadding, 1,                                       \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1589
          "The multiple of deviation from mean to use for buffering "       \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
          "against volatility in inter-sweep duration.")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
  product(uintx, CMS_SweepTimerThresholdMillis, 10,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
          "Skip block flux-rate sampling for an epoch unless inter-sweep "  \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1594
          "duration exceeds this threhold in milliseconds")                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
  develop(bool, CMSTraceIncrementalMode, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
          "Trace CMS incremental mode")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
  develop(bool, CMSTraceIncrementalPacing, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
          "Trace CMS incremental mode pacing computation")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
  develop(bool, CMSTraceThreadState, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
          "Trace the CMS thread state (enable the trace_state() method)")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
                                                                            \
15094
80724d2b6f25 8000325: Change default for CMSClassUnloadingEnabled to true
jmasa
parents: 15088
diff changeset
  1605
  product(bool, CMSClassUnloadingEnabled, true,                             \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
          "Whether class unloading enabled when using CMS GC")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
                                                                            \
341
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1608
  product(uintx, CMSClassUnloadingMaxInterval, 0,                           \
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1609
          "When CMS class unloading is enabled, the maximum CMS cycle count"\
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1610
          " for which classes may not be unloaded")                         \
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1611
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
  product(bool, CMSCompactWhenClearAllSoftRefs, true,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
          "Compact when asked to collect CMS gen with clear_all_soft_refs") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1615
  product(bool, UseCMSCompactAtFullCollection, true,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
          "Use mark sweep compact at full collections")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1617
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
  product(uintx, CMSFullGCsBeforeCompaction, 0,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
          "Number of CMS full collection done before compaction if > 0")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1620
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1621
  develop(intx, CMSDictionaryChoice, 0,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1622
          "Use BinaryTreeDictionary as default in the CMS generation")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1623
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1624
  product(uintx, CMSIndexedFreeListReplenish, 4,                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  1625
          "Replenish an indexed free list with this number of chunks")      \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1626
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1627
  product(bool, CMSReplenishIntermediate, true,                             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1628
          "Replenish all intermediate free-list caches")                    \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1629
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1630
  product(bool, CMSSplitIndexedFreeListBlocks, true,                        \
6447
32cc5cad7fa6 6983930: CMS: Various small cleanups ca September 2010
ysr
parents: 6419
diff changeset
  1631
          "When satisfying batched demand, split blocks from the "          \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1632
          "IndexedFreeList whose size is a multiple of requested size")     \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1633
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1634
  product(bool, CMSLoopWarn, false,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1635
          "Warn in case of excessive CMS looping")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1636
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
  develop(bool, CMSOverflowEarlyRestoration, false,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1638
          "Whether preserved marks should be restored early")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
                                                                            \
5035
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1640
  product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M),              \
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1641
          "Size of marking stack")                                          \
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1642
                                                                            \
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1643
  product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M),          \
0e498c4df637 6928081: G1: rename parameters common with CMS
jmasa
parents: 5034
diff changeset
  1644
          "Max size of marking stack")                                      \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1645
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1646
  notproduct(bool, CMSMarkStackOverflowALot, false,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1647
          "Whether we should simulate frequent marking stack / work queue"  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
          " overflow")                                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
                                                                            \
1910
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1650
  notproduct(uintx, CMSMarkStackOverflowInterval, 1000,                     \
386106352d02 6786503: Overflow list performance can be improved
ysr
parents: 1890
diff changeset
  1651
          "An `interval' counter that determines how frequently"            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1652
          " we simulate overflow; a smaller number increases frequency")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
  product(uintx, CMSMaxAbortablePrecleanLoops, 0,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
          "(Temporary, subject to experimentation)"                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
          "Maximum number of abortable preclean iterations, if > 0")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
  product(intx, CMSMaxAbortablePrecleanTime, 5000,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
          "(Temporary, subject to experimentation)"                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
          "Maximum time in abortable preclean in ms")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
  product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100,              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1663
          "(Temporary, subject to experimentation)"                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1664
          "Nominal minimum work per abortable preclean iteration")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1665
                                                                            \
6984
c6718f921eb6 6992998: CMSWaitDuration=0 causes hangs with +ExplicitGCInvokesConcurrent
ysr
parents: 6769
diff changeset
  1666
  manageable(intx, CMSAbortablePrecleanWaitMillis, 100,                     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1667
          "(Temporary, subject to experimentation)"                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1668
          " Time that we sleep between iterations when not given"           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1669
          " enough work per iteration")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
  product(uintx, CMSRescanMultiple, 32,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1672
          "Size (in cards) of CMS parallel rescan task")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1673
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
  product(uintx, CMSConcMarkMultiple, 32,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
          "Size (in cards) of CMS concurrent MT marking task")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1676
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1677
  product(bool, CMSAbortSemantics, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
          "Whether abort-on-overflow semantics is implemented")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
  product(bool, CMSParallelRemarkEnabled, true,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
          "Whether parallel remark enabled (only if ParNewGC)")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
  product(bool, CMSParallelSurvivorRemarkEnabled, true,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1684
          "Whether parallel remark of survivor space"                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1685
          " enabled (effective only if CMSParallelRemarkEnabled)")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
  product(bool, CMSPLABRecordAlways, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
          "Whether to always record survivor space PLAB bdries"             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
          " (effective only if CMSParallelSurvivorRemarkEnabled)")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1690
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
  product(bool, CMSConcurrentMTEnabled, true,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1692
          "Whether multi-threaded concurrent work enabled (if ParNewGC)")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1694
  product(bool, CMSPrecleaningEnabled, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1695
          "Whether concurrent precleaning enabled")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1696
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1697
  product(uintx, CMSPrecleanIter, 3,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
          "Maximum number of precleaning iteration passes")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1700
  product(uintx, CMSPrecleanNumerator, 2,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1701
          "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence"  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1702
          " ratio")                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
  product(uintx, CMSPrecleanDenominator, 3,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
          "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence"  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
          " ratio")                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
                                                                            \
1605
6b43d186eb8d 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists
ysr
parents: 1562
diff changeset
  1708
  product(bool, CMSPrecleanRefLists1, true,                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
          "Preclean ref lists during (initial) preclean phase")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1711
  product(bool, CMSPrecleanRefLists2, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1712
          "Preclean ref lists during abortable preclean phase")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1713
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1714
  product(bool, CMSPrecleanSurvivors1, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1715
          "Preclean survivors during (initial) preclean phase")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1716
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1717
  product(bool, CMSPrecleanSurvivors2, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
          "Preclean survivors during abortable preclean phase")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
  product(uintx, CMSPrecleanThreshold, 1000,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
          "Don't re-iterate if #dirty cards less than this")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
  product(bool, CMSCleanOnEnter, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1724
          "Clean-on-enter optimization for reducing number of dirty cards") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1726
  product(uintx, CMSRemarkVerifyVariant, 1,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
          "Choose variant (1,2) of verification following remark")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
  product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
          "If Eden used is below this value, don't try to schedule remark") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1732
  product(uintx, CMSScheduleRemarkEdenPenetration, 50,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
          "The Eden occupancy % at which to try and schedule remark pause") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
  product(uintx, CMSScheduleRemarkSamplingRatio, 5,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1736
          "Start sampling Eden top at least before yg occupancy reaches"    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
          " 1/<ratio> of the size at which we plan to schedule remark")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
  product(uintx, CMSSamplingGrain, 16*K,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
          "The minimum distance between eden samples for CMS (see above)")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
  product(bool, CMSScavengeBeforeRemark, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
          "Attempt scavenge before the CMS remark step")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
  develop(bool, CMSTraceSweeper, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
          "Trace some actions of the CMS sweeper")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
  product(uintx, CMSWorkQueueDrainThreshold, 10,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
          "Don't drain below this size per parallel worker/thief")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
                                                                            \
6984
c6718f921eb6 6992998: CMSWaitDuration=0 causes hangs with +ExplicitGCInvokesConcurrent
ysr
parents: 6769
diff changeset
  1751
  manageable(intx, CMSWaitDuration, 2000,                                   \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
          "Time in milliseconds that CMS thread waits for young GC")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
  product(bool, CMSYield, true,                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1755
          "Yield between steps of concurrent mark & sweep")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1756
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1757
  product(uintx, CMSBitMapYieldQuantum, 10*M,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1758
          "Bitmap operations should process at most this many bits"         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1759
          "between yields")                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1760
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1761
  product(bool, CMSDumpAtPromotionFailure, false,                           \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1762
          "Dump useful information about the state of the CMS old "         \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1763
          " generation upon a promotion failure.")                          \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1764
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1765
  product(bool, CMSPrintChunksInDump, false,                                \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1766
          "In a dump enabled by CMSDumpAtPromotionFailure, include "        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1767
          " more detailed information about the free chunks.")              \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1768
                                                                            \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1769
  product(bool, CMSPrintObjectsInDump, false,                               \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1770
          "In a dump enabled by CMSDumpAtPromotionFailure, include "        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1771
          " more detailed information about the allocated objects.")        \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1772
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1773
  diagnostic(bool, FLSVerifyAllHeapReferences, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
          "Verify that all refs across the FLS boundary "                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1775
          " are to valid objects")                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1776
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1777
  diagnostic(bool, FLSVerifyLists, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1778
          "Do lots of (expensive) FreeListSpace verification")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1779
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1780
  diagnostic(bool, FLSVerifyIndexTable, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
          "Do lots of (expensive) FLS index table verification")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1782
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
  develop(bool, FLSVerifyDictionary, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
          "Do lots of (expensive) FLS dictionary verification")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
  develop(bool, VerifyBlockOffsetArray, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
          "Do (expensive!) block offset array verification")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1788
                                                                            \
9422
e3c824172b61 7040068: CMS: Possibly unsafe initialization of BlockOffsetArrayUseUnallocatedBlock
brutisso
parents: 9182
diff changeset
  1789
  diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false,              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1790
          "Maintain _unallocated_block in BlockOffsetArray"                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1791
          " (currently applicable only to CMS collector)")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1793
  develop(bool, TraceCMSState, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
          "Trace the state of the CMS collection")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1795
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1796
  product(intx, RefDiscoveryPolicy, 0,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1797
          "Whether reference-based(0) or referent-based(1)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1798
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1799
  product(bool, ParallelRefProcEnabled, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1800
          "Enable parallel reference processing whenever possible")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1801
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1802
  product(bool, ParallelRefProcBalancingEnabled, true,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1803
          "Enable balancing of reference processing queues")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1804
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1805
  product(intx, CMSTriggerRatio, 80,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1806
          "Percentage of MinHeapFreeRatio in CMS generation that is "       \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1807
          "allocated before a CMS collection cycle commences")              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1808
                                                                            \
341
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1809
  product(uintx, CMSBootstrapOccupancy, 50,                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1810
          "Percentage CMS generation occupancy at which to "                \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1811
          "initiate CMS collection for bootstrapping collection stats")     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1812
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1813
  product(intx, CMSInitiatingOccupancyFraction, -1,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1814
          "Percentage CMS generation occupancy to start a CMS collection "  \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1815
          "cycle. A negative value means that CMSTriggerRatio is used")     \
341
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1816
                                                                            \
5034
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1817
  product(uintx, InitiatingHeapOccupancyPercent, 45,                        \
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1818
          "Percentage of the (entire) heap occupancy to start a "           \
15604
0209977cd9c4 7052429: G1: Avoid unnecessary scanning of humongous regions during concurrent marking
johnc
parents: 15221
diff changeset
  1819
          "concurrent GC cycle. It is used by GCs that trigger a "          \
5034
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1820
          "concurrent GC cycle based on the occupancy of the entire heap, " \
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1821
          "not just one of the generations (e.g., G1). A value of 0 "       \
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1822
          "denotes 'do constant GC cycles'.")                               \
a1cec6310394 6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents: 4759
diff changeset
  1823
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1824
  product(bool, UseCMSInitiatingOccupancyOnly, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1825
          "Only use occupancy as a crierion for starting a CMS collection") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
                                                                            \
341
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1827
  product(intx, CMSIsTooFullPercentage, 98,                                 \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1828
          "An absolute ceiling above which CMS will always consider the "   \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  1829
          "unloading of classes when class unloading is enabled")           \
341
6578aad59716 6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents: 188
diff changeset
  1830
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1831
  develop(bool, CMSTestInFreeList, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
          "Check if the coalesced range is already in the "                 \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1833
          "free lists as claimed")                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
  notproduct(bool, CMSVerifyReturnedBytes, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
          "Check that all the garbage collected was returned to the "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
          "free lists.")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
  notproduct(bool, ScavengeALot, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
          "Force scavenge at every Nth exit from the runtime system "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
          "(N=ScavengeALotInterval)")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1843
  develop(bool, FullGCALot, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1844
          "Force full gc at every Nth exit from the runtime system "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1845
          "(N=FullGCALotInterval)")                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1846
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1847
  notproduct(bool, GCALotAtAllSafepoints, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1848
          "Enforce ScavengeALot/GCALot at all potential safepoints")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1849
                                                                            \
4574
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1850
  product(bool, PrintPromotionFailure, false,                               \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1851
          "Print additional diagnostic information following "              \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1852
          " promotion failure")                                             \
b2d5b0975515 6631166: CMS: better heuristics when combatting fragmentation
ysr
parents: 4434
diff changeset
  1853
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1854
  notproduct(bool, PromotionFailureALot, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
          "Use promotion failure handling on every youngest generation "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
          "collection")                                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1857
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1858
  develop(uintx, PromotionFailureALotCount, 1000,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1859
          "Number of promotion failures occurring at ParGCAllocBuffer"      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1860
          "refill attempts (ParNew) or promotion attempts "                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1861
          "(other young collectors) ")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1862
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1863
  develop(uintx, PromotionFailureALotInterval, 5,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1864
          "Total collections between promotion failures alot")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1865
                                                                            \
6763
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
  1866
  experimental(intx, WorkStealingSleepMillis, 1,                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1867
          "Sleep time when sleep is used for yields")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1868
                                                                            \
8925
5fdd1d28e7ef 6948149: G1: Imbalance in termination times
brutisso
parents: 8728
diff changeset
  1869
  experimental(uintx, WorkStealingYieldsBeforeSleep, 5000,                  \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1870
          "Number of yields before a sleep is done during workstealing")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1871
                                                                            \
6763
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
  1872
  experimental(uintx, WorkStealingHardSpins, 4096,                          \
2010
c13462bbad17 6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents: 2005
diff changeset
  1873
          "Number of iterations in a spin loop between checks on "          \
c13462bbad17 6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents: 2005
diff changeset
  1874
          "time out of hard spin")                                          \
c13462bbad17 6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents: 2005
diff changeset
  1875
                                                                            \
6763
711b8a44c4dd 6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents: 6762
diff changeset
  1876
  experimental(uintx, WorkStealingSpinToYieldRatio, 10,                     \
2010
c13462bbad17 6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents: 2005
diff changeset
  1877
          "Ratio of hard spins to calls to yield")                          \
c13462bbad17 6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents: 2005
diff changeset
  1878
                                                                            \
5076
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 5039
diff changeset
  1879
  develop(uintx, ObjArrayMarkingStride, 512,                                \
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 5039
diff changeset
  1880
          "Number of ObjArray elements to push onto the marking stack"      \
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 5039
diff changeset
  1881
          "before pushing a continuation entry")                            \
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 5039
diff changeset
  1882
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1883
  develop(bool, MetadataAllocationFailALot, false,                          \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1884
          "Fail metadata allocations at intervals controlled by "           \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1885
          "MetadataAllocationFailALotInterval")                             \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1886
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1887
  develop(uintx, MetadataAllocationFailALotInterval, 1000,                  \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1888
          "metadata allocation failure alot interval")                      \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1889
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1890
  develop(bool, MetaDataDeallocateALot, false,                              \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1891
          "Deallocation bunches of metadata at intervals controlled by "    \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1892
          "MetaDataAllocateALotInterval")                                   \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1893
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1894
  develop(uintx, MetaDataDeallocateALotInterval, 100,                       \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1895
          "Metadata deallocation alot interval")                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1896
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1897
  develop(bool, TraceMetadataChunkAllocation, false,                        \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  1898
          "Trace chunk metadata allocations")                               \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1899
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1900
  product(bool, TraceMetadataHumongousAllocation, false,                    \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1901
          "Trace humongous metadata allocations")                           \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1902
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1903
  develop(bool, TraceMetavirtualspaceAllocation, false,                     \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  1904
          "Trace virtual space metadata allocations")                       \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  1905
                                                                            \
10002
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9990
diff changeset
  1906
  notproduct(bool, ExecuteInternalVMTests, false,                           \
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9990
diff changeset
  1907
          "Enable execution of internal VM tests.")                         \
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9990
diff changeset
  1908
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1909
  product_pd(bool, UseTLAB, "Use thread-local object allocation")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1910
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1911
  product_pd(bool, ResizeTLAB,                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1912
          "Dynamically resize tlab size for threads")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1913
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1914
  product(bool, ZeroTLAB, false,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1915
          "Zero out the newly created TLAB")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1916
                                                                            \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1917
  product(bool, FastTLABRefill, true,                                       \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1918
          "Use fast TLAB refill code")                                      \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
  1919
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1920
  product(bool, PrintTLAB, false,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1921
          "Print various TLAB related information")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1922
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1923
  product(bool, TLABStats, true,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1924
          "Print various TLAB related information")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1925
                                                                            \
8107
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  1926
  EMBEDDED_ONLY(product(bool, LowMemoryProtection, true,                    \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  1927
          "Enable LowMemoryProtection"))                                    \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  1928
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1929
  product_pd(bool, NeverActAsServerClassMachine,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1930
          "Never act like a server-class machine")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1931
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1932
  product(bool, AlwaysActAsServerClassMachine, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1933
          "Always act like a server-class machine")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1934
                                                                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1935
  product_pd(uint64_t, MaxRAM,                                              \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1936
          "Real memory size (in bytes) used to set maximum heap size")      \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1937
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1938
  product(uintx, ErgoHeapSizeLimit, 0,                                      \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1939
          "Maximum ergonomically set heap size (in bytes); zero means use " \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1940
          "MaxRAM / MaxRAMFraction")                                        \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1941
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1942
  product(uintx, MaxRAMFraction, 4,                                         \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1943
          "Maximum fraction (1/n) of real memory used for maximum heap "    \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1944
          "size")                                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1945
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1946
  product(uintx, DefaultMaxRAMFraction, 4,                                  \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1947
          "Maximum fraction (1/n) of real memory used for maximum heap "    \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1948
          "size; deprecated: to be renamed to MaxRAMFraction")              \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1949
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1950
  product(uintx, MinRAMFraction, 2,                                         \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1951
          "Minimum fraction (1/n) of real memory used for maxmimum heap "   \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1952
          "size on systems with small physical memory size")                \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1953
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1954
  product(uintx, InitialRAMFraction, 64,                                    \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  1955
          "Fraction (1/n) of real memory used for initial heap size")       \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1956
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1957
  product(bool, UseAutoGCSelectPolicy, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1958
          "Use automatic collection selection policy")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1959
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1960
  product(uintx, AutoGCSelectPauseMillis, 5000,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1961
          "Automatic GC selection pause threshhold in ms")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1962
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
  product(bool, UseAdaptiveSizePolicy, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1964
          "Use adaptive generation sizing policies")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1965
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1966
  product(bool, UsePSAdaptiveSurvivorSizePolicy, true,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
          "Use adaptive survivor sizing policies")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1968
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
  product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true,     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
          "Use adaptive young-old sizing policies at minor collections")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1972
  product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true,     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
          "Use adaptive young-old sizing policies at major collections")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1974
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1975
  product(bool, UseAdaptiveSizePolicyWithSystemGC, false,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1976
          "Use statistics from System.GC for adaptive size policy")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1977
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1978
  product(bool, UseAdaptiveGCBoundary, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1979
          "Allow young-old boundary to move")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1980
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1981
  develop(bool, TraceAdaptiveGCBoundary, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1982
          "Trace young-old boundary moves")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1983
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1984
  develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1,             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1985
          "Resize the virtual spaces of the young or old generations")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1986
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1987
  product(uintx, AdaptiveSizeThroughPutPolicy, 0,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1988
          "Policy for changeing generation size for throughput goals")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1989
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1990
  product(uintx, AdaptiveSizePausePolicy, 0,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1991
          "Policy for changing generation size for pause goals")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1992
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1993
  develop(bool, PSAdjustTenuredGenForMinorPause, false,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1994
          "Adjust tenured generation to achive a minor pause goal")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1995
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1996
  develop(bool, PSAdjustYoungGenForMajorPause, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1997
          "Adjust young generation to achive a major pause goal")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1998
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1999
  product(uintx, AdaptiveSizePolicyInitializingSteps, 20,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2000
          "Number of steps where heuristics is used before data is used")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2001
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2002
  develop(uintx, AdaptiveSizePolicyReadyThreshold, 5,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2003
          "Number of collections before the adaptive sizing is started")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2004
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2005
  product(uintx, AdaptiveSizePolicyOutputInterval, 0,                       \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2006
          "Collecton interval for printing information; zero => never")     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2007
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2008
  product(bool, UseAdaptiveSizePolicyFootprintGoal, true,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2009
          "Use adaptive minimum footprint as a goal")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2010
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2011
  product(uintx, AdaptiveSizePolicyWeight, 10,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2012
          "Weight given to exponential resizing, between 0 and 100")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2013
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2014
  product(uintx, AdaptiveTimeWeight,       25,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2015
          "Weight given to time in adaptive policy, between 0 and 100")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2016
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2017
  product(uintx, PausePadding, 1,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2018
          "How much buffer to keep for pause time")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2019
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2020
  product(uintx, PromotedPadding, 3,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2021
          "How much buffer to keep for promotion failure")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2022
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2023
  product(uintx, SurvivorPadding, 3,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2024
          "How much buffer to keep for survivor overflow")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2025
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2026
  product(uintx, ThresholdTolerance, 10,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2027
          "Allowed collection cost difference between generations")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2028
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2029
  product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50,                \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2030
          "If collection costs are within margin, reduce both by full "     \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2031
          "delta")                                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2032
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2033
  product(uintx, YoungGenerationSizeIncrement, 20,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2034
          "Adaptive size percentage change in young generation")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2035
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2036
  product(uintx, YoungGenerationSizeSupplement, 80,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2037
          "Supplement to YoungedGenerationSizeIncrement used at startup")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2038
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2039
  product(uintx, YoungGenerationSizeSupplementDecay, 8,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2040
          "Decay factor to YoungedGenerationSizeSupplement")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2041
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2042
  product(uintx, TenuredGenerationSizeIncrement, 20,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2043
          "Adaptive size percentage change in tenured generation")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2044
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2045
  product(uintx, TenuredGenerationSizeSupplement, 80,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2046
          "Supplement to TenuredGenerationSizeIncrement used at startup")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2047
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2048
  product(uintx, TenuredGenerationSizeSupplementDecay, 2,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2049
          "Decay factor to TenuredGenerationSizeIncrement")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2050
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  2051
  product(uintx, MaxGCPauseMillis, max_uintx,                               \
2741
34e2a243d69a 6490395: G1: Tidy up command line flags.
johnc
parents: 2570
diff changeset
  2052
          "Adaptive size policy maximum GC pause time goal in msec, "       \
34e2a243d69a 6490395: G1: Tidy up command line flags.
johnc
parents: 2570
diff changeset
  2053
          "or (G1 Only) the max. GC time per MMU time slice")               \
34e2a243d69a 6490395: G1: Tidy up command line flags.
johnc
parents: 2570
diff changeset
  2054
                                                                            \
5890
5766abbf8789 6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
tonyp
parents: 5712
diff changeset
  2055
  product(uintx, GCPauseIntervalMillis, 0,                                  \
2741
34e2a243d69a 6490395: G1: Tidy up command line flags.
johnc
parents: 2570
diff changeset
  2056
          "Time slice for MMU specification")                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2057
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2058
  product(uintx, MaxGCMinorPauseMillis, max_uintx,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2059
          "Adaptive size policy maximum GC minor pause time goal in msec")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2060
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2061
  product(uintx, GCTimeRatio, 99,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2062
          "Adaptive size policy application time to GC time ratio")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2063
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2064
  product(uintx, AdaptiveSizeDecrementScaleFactor, 4,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2065
          "Adaptive size scale down factor for shrinking")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2066
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2067
  product(bool, UseAdaptiveSizeDecayMajorGCCost, true,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
          "Adaptive size decays the major cost for long major intervals")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
  product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
          "Time scale over which major costs decay")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2073
  product(uintx, MinSurvivorRatio, 3,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
          "Minimum ratio of young generation/survivor space size")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
  product(uintx, InitialSurvivorRatio, 8,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
          "Initial ratio of eden/survivor space size")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2079
  product(uintx, BaseFootPrintEstimate, 256*M,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2080
          "Estimate of footprint other than Java Heap")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2081
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
  product(bool, UseGCOverheadLimit, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
          "Use policy to limit of proportion of time spent in GC "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2084
          "before an OutOfMemory error is thrown")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2085
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2086
  product(uintx, GCTimeLimit, 98,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2087
          "Limit of proportion of time spent in GC before an OutOfMemory"   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2088
          "error is thrown (used with GCHeapFreeLimit)")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2089
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2090
  product(uintx, GCHeapFreeLimit, 2,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2091
          "Minimum percentage of free space after a full GC before an "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2092
          "OutOfMemoryError is thrown (used with GCTimeLimit)")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2093
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2094
  develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5,                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
          "Number of consecutive collections before gc time limit fires")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2096
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
  product(bool, PrintAdaptiveSizePolicy, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2098
          "Print information about AdaptiveSizePolicy")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
  product(intx, PrefetchCopyIntervalInBytes, -1,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
          "How far ahead to prefetch destination area (<= 0 means off)")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
  product(intx, PrefetchScanIntervalInBytes, -1,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2104
          "How far ahead to prefetch scan area (<= 0 means off)")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2105
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2106
  product(intx, PrefetchFieldsAhead, -1,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2107
          "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2108
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2109
  diagnostic(bool, VerifyBeforeExit, trueInDebug,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2110
          "Verify system before exiting")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2111
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2112
  diagnostic(bool, VerifyBeforeGC, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2113
          "Verify memory system before GC")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2114
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2115
  diagnostic(bool, VerifyAfterGC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2116
          "Verify memory system after GC")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2117
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2118
  diagnostic(bool, VerifyDuringGC, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2119
          "Verify memory system during GC (between phases)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2120
                                                                            \
1422
9af8f4023912 6752248: G1: introduce parallel heap verification
tonyp
parents: 1421
diff changeset
  2121
  diagnostic(bool, GCParallelVerificationEnabled, true,                     \
9af8f4023912 6752248: G1: introduce parallel heap verification
tonyp
parents: 1421
diff changeset
  2122
          "Enable parallel memory system verification")                     \
9af8f4023912 6752248: G1: introduce parallel heap verification
tonyp
parents: 1421
diff changeset
  2123
                                                                            \
4637
af4d405aacc1 6896647: card marks can be deferred too long
ysr
parents: 4575
diff changeset
  2124
  diagnostic(bool, DeferInitialCardMark, false,                             \
af4d405aacc1 6896647: card marks can be deferred too long
ysr
parents: 4575
diff changeset
  2125
          "When +ReduceInitialCardMarks, explicitly defer any that "        \
af4d405aacc1 6896647: card marks can be deferred too long
ysr
parents: 4575
diff changeset
  2126
           "may arise from new_pre_store_barrier")                          \
af4d405aacc1 6896647: card marks can be deferred too long
ysr
parents: 4575
diff changeset
  2127
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2128
  diagnostic(bool, VerifyRememberedSets, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2129
          "Verify GC remembered sets")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2130
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2131
  diagnostic(bool, VerifyObjectStartArray, true,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2132
          "Verify GC object start array if verify before/after")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2133
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2134
  product(bool, DisableExplicitGC, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2135
          "Tells whether calling System.gc() does a full GC")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2136
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2137
  notproduct(bool, CheckMemoryInitialization, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2138
          "Checks memory initialization")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2139
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2140
  product(bool, CollectGen0First, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2141
          "Collect youngest generation before each full GC")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2142
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2143
  diagnostic(bool, BindCMSThreadToCPU, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2144
          "Bind CMS Thread to CPU if possible")                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2145
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2146
  diagnostic(uintx, CPUForCMSThread, 0,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2147
          "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2148
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2149
  product(bool, BindGCTaskThreadsToCPUs, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2150
          "Bind GCTaskThreads to CPUs if possible")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2151
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2152
  product(bool, UseGCTaskAffinity, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2153
          "Use worker affinity when asking for GCTasks")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2154
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2155
  product(uintx, ProcessDistributionStride, 4,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2156
          "Stride through processors when distributing processes")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2157
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2158
  product(uintx, CMSCoordinatorYieldSleepCount, 10,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2159
          "number of times the coordinator GC thread will sleep while "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2160
          "yielding before giving up and resuming GC")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2161
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2162
  product(uintx, CMSYieldSleepCount, 0,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2163
          "number of times a GC thread (minus the coordinator) "            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2164
          "will sleep while yielding before giving up and resuming GC")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2165
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2166
  /* gc tracing */                                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2167
  manageable(bool, PrintGC, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2168
          "Print message at garbage collect")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2169
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2170
  manageable(bool, PrintGCDetails, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2171
          "Print more details at garbage collect")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2172
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2173
  manageable(bool, PrintGCDateStamps, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2174
          "Print date stamps at garbage collect")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2175
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2176
  manageable(bool, PrintGCTimeStamps, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2177
          "Print timestamps at garbage collect")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2178
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2179
  product(bool, PrintGCTaskTimeStamps, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2180
          "Print timestamps for individual gc worker thread tasks")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2181
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2182
  develop(intx, ConcGCYieldTimeout, 0,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2183
          "If non-zero, assert that GC threads yield within this # of ms.") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2184
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2185
  notproduct(bool, TraceMarkSweep, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2186
          "Trace mark sweep")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2187
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2188
  product(bool, PrintReferenceGC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2189
          "Print times spent handling reference objects during GC "         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2190
          " (enabled only when PrintGCDetails)")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2191
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2192
  develop(bool, TraceReferenceGC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2193
          "Trace handling of soft/weak/final/phantom references")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2194
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2195
  develop(bool, TraceFinalizerRegistration, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2196
         "Trace registration of final references")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2197
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2198
  notproduct(bool, TraceScavenge, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2199
          "Trace scavenge")                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2200
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2201
  product_rw(bool, TraceClassLoading, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2202
          "Trace all classes loaded")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2203
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2204
  product(bool, TraceClassLoadingPreorder, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2205
          "Trace all classes loaded in order referenced (not loaded)")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2206
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2207
  product_rw(bool, TraceClassUnloading, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2208
          "Trace unloading of classes")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2209
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2210
  product_rw(bool, TraceLoaderConstraints, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2211
          "Trace loader constraints")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2212
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2213
  develop(bool, TraceClassLoaderData, false,                                \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2214
          "Trace class loader loader_data lifetime")                        \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2215
                                                                            \
15086
2bfd799e9147 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 14835
diff changeset
  2216
  product(uintx, InitialBootClassLoaderMetaspaceSize,                       \
2bfd799e9147 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 14835
diff changeset
  2217
          NOT_LP64(2200*K) LP64_ONLY(4*M),                                  \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2218
          "Initial size of the boot class loader data metaspace")           \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2219
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2220
  product(bool, TraceGen0Time, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2221
          "Trace accumulated time for Gen 0 collection")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2222
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2223
  product(bool, TraceGen1Time, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2224
          "Trace accumulated time for Gen 1 collection")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2225
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2226
  product(bool, PrintTenuringDistribution, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2227
          "Print tenuring age information")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2228
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2229
  product_rw(bool, PrintHeapAtGC, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2230
          "Print heap layout before and after each GC")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2231
                                                                            \
3191
dd3cc90b9951 6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents: 2866
diff changeset
  2232
  product_rw(bool, PrintHeapAtGCExtended, false,                            \
dd3cc90b9951 6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents: 2866
diff changeset
  2233
          "Prints extended information about the layout of the heap "       \
dd3cc90b9951 6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents: 2866
diff changeset
  2234
          "when -XX:+PrintHeapAtGC is set")                                 \
dd3cc90b9951 6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents: 2866
diff changeset
  2235
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2236
  product(bool, PrintHeapAtSIGBREAK, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2237
          "Print heap layout in response to SIGBREAK")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2238
                                                                            \
2141
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2239
  manageable(bool, PrintClassHistogramBeforeFullGC, false,                  \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2240
          "Print a class histogram before any major stop-world GC")         \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2241
                                                                            \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2242
  manageable(bool, PrintClassHistogramAfterFullGC, false,                   \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2243
          "Print a class histogram after any major stop-world GC")          \
e9a644aaff87 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents: 2034
diff changeset
  2244
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2245
  manageable(bool, PrintClassHistogram, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2246
          "Print a histogram of class instances")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2247
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2248
  develop(bool, TraceWorkGang, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2249
          "Trace activities of work gangs")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2250
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2251
  product(bool, TraceParallelOldGCTasks, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2252
          "Trace multithreaded GC activity")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2253
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2254
  develop(bool, TraceBlockOffsetTable, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2255
          "Print BlockOffsetTable maps")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2256
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2257
  develop(bool, TraceCardTableModRefBS, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2258
          "Print CardTableModRefBS maps")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2259
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2260
  develop(bool, TraceGCTaskManager, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2261
          "Trace actions of the GC task manager")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2262
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2263
  develop(bool, TraceGCTaskQueue, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2264
          "Trace actions of the GC task queues")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2265
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  2266
  diagnostic(bool, TraceGCTaskThread, false,                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2267
          "Trace actions of the GC task threads")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2268
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2269
  product(bool, PrintParallelOldGCPhaseTimes, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2270
          "Print the time taken by each parallel old gc phase."             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2271
          "PrintGCDetails must also be enabled.")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2272
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2273
  develop(bool, TraceParallelOldGCMarkingPhase, false,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2274
          "Trace parallel old gc marking phase")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2275
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2276
  develop(bool, TraceParallelOldGCSummaryPhase, false,                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2277
          "Trace parallel old gc summary phase")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2278
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2279
  develop(bool, TraceParallelOldGCCompactionPhase, false,                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2280
          "Trace parallel old gc compaction phase")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2281
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2282
  develop(bool, TraceParallelOldGCDensePrefix, false,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2283
          "Trace parallel old gc dense prefix computation")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2284
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2285
  develop(bool, IgnoreLibthreadGPFault, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2286
          "Suppress workaround for libthread GP fault")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2287
                                                                            \
386
7f121b1192f2 6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents: 342
diff changeset
  2288
  product(bool, PrintJNIGCStalls, false,                                    \
7f121b1192f2 6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents: 342
diff changeset
  2289
          "Print diagnostic message when GC is stalled"                     \
7f121b1192f2 6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents: 342
diff changeset
  2290
          "by JNI critical section")                                        \
7f121b1192f2 6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents: 342
diff changeset
  2291
                                                                            \
9990
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2292
  /* GC log rotation setting */                                             \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2293
                                                                            \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2294
  product(bool, UseGCLogFileRotation, false,                                \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2295
          "Prevent large gclog file for long running app. "                 \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2296
          "Requires -Xloggc:<filename>")                                    \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2297
                                                                            \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2298
  product(uintx, NumberOfGCLogFiles, 0,                                     \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2299
          "Number of gclog files in rotation, "                             \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2300
          "Default: 0, no rotation")                                        \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2301
                                                                            \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2302
  product(uintx, GCLogFileSize, 0,                                          \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2303
          "GC log file size, Default: 0 bytes, no rotation "                \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2304
          "Only valid with UseGCLogFileRotation")                           \
c8683968c01b 6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents: 9968
diff changeset
  2305
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2306
  /* JVMTI heap profiling */                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2307
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2308
  diagnostic(bool, TraceJVMTIObjectTagging, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2309
          "Trace JVMTI object tagging calls")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2310
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2311
  diagnostic(bool, VerifyBeforeIteration, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2312
          "Verify memory system before JVMTI iteration")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2313
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2314
  /* compiler interface */                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2315
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2316
  develop(bool, CIPrintCompilerName, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2317
          "when CIPrint is active, print the name of the active compiler")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2318
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2319
  develop(bool, CIPrintCompileQueue, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2320
          "display the contents of the compile queue whenever a "           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2321
          "compilation is enqueued")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2322
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2323
  develop(bool, CIPrintRequests, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2324
          "display every request for compilation")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2325
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2326
  product(bool, CITime, false,                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2327
          "collect timing information for compilation")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2328
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2329
  develop(bool, CITimeEach, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2330
          "display timing information after each successful compilation")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2331
                                                                            \
13964
01a2b863cc61 7177003: C1: LogCompilation support
vlivanov
parents: 13925
diff changeset
  2332
  develop(bool, CICountOSR, false,                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2333
          "use a separate counter when assigning ids to osr compilations")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2334
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2335
  develop(bool, CICompileNatives, true,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2336
          "compile native methods if supported by the compiler")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2337
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2338
  develop_pd(bool, CICompileOSR,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2339
          "compile on stack replacement methods if supported by the "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2340
          "compiler")                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2341
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2342
  develop(bool, CIPrintMethodCodes, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2343
          "print method bytecodes of the compiled code")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2344
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2345
  develop(bool, CIPrintTypeFlow, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2346
          "print the results of ciTypeFlow analysis")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2347
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2348
  develop(bool, CITraceTypeFlow, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2349
          "detailed per-bytecode tracing of ciTypeFlow analysis")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2350
                                                                            \
8870
119881dc9d0b 7024475: loop doesn't terminate when compiled
never
parents: 8728
diff changeset
  2351
  develop(intx, OSROnlyBCI, -1,                                             \
119881dc9d0b 7024475: loop doesn't terminate when compiled
never
parents: 8728
diff changeset
  2352
          "OSR only at this bci.  Negative values mean exclude that bci")   \
119881dc9d0b 7024475: loop doesn't terminate when compiled
never
parents: 8728
diff changeset
  2353
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2354
  /* compiler */                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2355
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2356
  product(intx, CICompilerCount, CI_COMPILER_COUNT,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2357
          "Number of compiler threads to run")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2358
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2359
  product(intx, CompilationPolicyChoice, 0,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2360
          "which compilation policy (0/1)")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2361
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2362
  develop(bool, UseStackBanging, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2363
          "use stack banging for stack overflow checks (required for "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2364
          "proper StackOverflow handling; disable only to measure cost "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2365
          "of stackbanging)")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2366
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2367
  develop(bool, UseStrictFP, true,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2368
          "use strict fp if modifier strictfp is set")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2369
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2370
  develop(bool, GenerateSynchronizationCode, true,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2371
          "generate locking/unlocking code for synchronized methods and "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2372
          "monitors")                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2373
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2374
  develop(bool, GenerateCompilerNullChecks, true,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2375
          "Generate explicit null checks for loads/stores/calls")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2376
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2377
  develop(bool, GenerateRangeChecks, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2378
          "Generate range checks for array accesses")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2379
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2380
  develop_pd(bool, ImplicitNullChecks,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2381
          "generate code for implicit null checks")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2382
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2383
  product(bool, PrintSafepointStatistics, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2384
          "print statistics about safepoint synchronization")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2385
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2386
  product(intx, PrintSafepointStatisticsCount, 300,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2387
          "total number of safepoint statistics collected "                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2388
          "before printing them out")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2389
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2390
  product(intx, PrintSafepointStatisticsTimeout,  -1,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2391
          "print safepoint statistics only when safepoint takes"            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2392
          " more than PrintSafepointSatisticsTimeout in millis")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2393
                                                                            \
5086
ebccc0bb7b8e 6934758: Expose the break down of clean up task time during safepoint.
xlu
parents: 5039
diff changeset
  2394
  product(bool, TraceSafepointCleanupTime, false,                           \
ebccc0bb7b8e 6934758: Expose the break down of clean up task time during safepoint.
xlu
parents: 5039
diff changeset
  2395
          "print the break down of clean up tasks performed during"         \
ebccc0bb7b8e 6934758: Expose the break down of clean up task time during safepoint.
xlu
parents: 5039
diff changeset
  2396
          " safepoint")                                                     \
ebccc0bb7b8e 6934758: Expose the break down of clean up task time during safepoint.
xlu
parents: 5039
diff changeset
  2397
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2398
  product(bool, Inline, true,                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2399
          "enable inlining")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2400
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2401
  product(bool, ClipInlining, true,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2402
          "clip inlining if aggregate method exceeds DesiredMethodLimit")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2403
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2404
  develop(bool, UseCHA, true,                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2405
          "enable CHA")                                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2406
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2407
  product(bool, UseTypeProfile, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2408
          "Check interpreter profile for historically monomorphic calls")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2409
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2410
  notproduct(bool, TimeCompiler, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2411
          "time the compiler")                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2412
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2413
  diagnostic(bool, PrintInlining, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2414
          "prints inlining optimizations")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2415
                                                                            \
2255
54abdf3e1055 6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents: 2254
diff changeset
  2416
  product(bool, UsePopCountInstruction, false,                              \
54abdf3e1055 6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents: 2254
diff changeset
  2417
          "Use population count instruction")                               \
54abdf3e1055 6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents: 2254
diff changeset
  2418
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2419
  develop(bool, EagerInitialization, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2420
          "Eagerly initialize classes if possible")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2421
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2422
  develop(bool, TraceMethodReplacement, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2423
          "Print when methods are replaced do to recompilation")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2424
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2425
  develop(bool, PrintMethodFlushing, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2426
          "print the nmethods being flushed")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2427
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2428
  develop(bool, UseRelocIndex, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2429
         "use an index to speed random access to relocations")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2430
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2431
  develop(bool, StressCodeBuffers, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2432
         "Exercise code buffer expansion and other rare state changes")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2433
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2434
  diagnostic(bool, DebugNonSafepoints, trueInDebug,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2435
         "Generate extra debugging info for non-safepoints in nmethods")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2436
                                                                            \
10990
f71627d1b3dd 7108264: Fix for 7104173 is insufficient
dholmes
parents: 10828
diff changeset
  2437
  product(bool, PrintVMOptions, false,                                      \
4579
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2438
         "Print flags that appeared on the command line")                   \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2439
                                                                            \
2028
04fa713b25f9 6788376: allow to ignore unrecognized VM options
kvn
parents: 1671
diff changeset
  2440
  product(bool, IgnoreUnrecognizedVMOptions, false,                         \
04fa713b25f9 6788376: allow to ignore unrecognized VM options
kvn
parents: 1671
diff changeset
  2441
         "Ignore unrecognized VM options")                                  \
04fa713b25f9 6788376: allow to ignore unrecognized VM options
kvn
parents: 1671
diff changeset
  2442
                                                                            \
4579
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2443
  product(bool, PrintCommandLineFlags, false,                               \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2444
         "Print flags specified on command line or set by ergonomics")      \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2445
                                                                            \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2446
  product(bool, PrintFlagsInitial, false,                                   \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2447
         "Print all VM flags before argument processing and exit VM")       \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2448
                                                                            \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2449
  product(bool, PrintFlagsFinal, false,                                     \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2450
         "Print all VM flags after argument and ergonomic processing")      \
62478db2dc78 6914622: Print values of all flags for product VM
kvn
parents: 4489
diff changeset
  2451
                                                                            \
6438
ace4f8100e90 6979444: add command line option to print command line flags descriptions
ikrylov
parents: 6419
diff changeset
  2452
  notproduct(bool, PrintFlagsWithComments, false,                           \
ace4f8100e90 6979444: add command line option to print command line flags descriptions
ikrylov
parents: 6419
diff changeset
  2453
         "Print all VM flags with default values and descriptions and exit")\
ace4f8100e90 6979444: add command line option to print command line flags descriptions
ikrylov
parents: 6419
diff changeset
  2454
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2455
  diagnostic(bool, SerializeVMOutput, true,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2456
         "Use a mutex to serialize output to tty and hotspot.log")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2457
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2458
  diagnostic(bool, DisplayVMOutput, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2459
         "Display all VM output on the tty, independently of LogVMOutput")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2460
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2461
  diagnostic(bool, LogVMOutput, trueInDebug,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2462
         "Save VM output to hotspot.log, or to LogFile")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2463
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2464
  diagnostic(ccstr, LogFile, NULL,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2465
         "If LogVMOutput is on, save VM output to this file [hotspot.log]") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2466
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2467
  product(ccstr, ErrorFile, NULL,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2468
         "If an error occurs, save the error data to this file "            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2469
         "[default: ./hs_err_pid%p.log] (%p replaced with pid)")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2470
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2471
  product(bool, DisplayVMOutputToStderr, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2472
         "If DisplayVMOutput is true, display all VM output to stderr")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2473
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2474
  product(bool, DisplayVMOutputToStdout, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2475
         "If DisplayVMOutput is true, display all VM output to stdout")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2476
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2477
  product(bool, UseHeavyMonitors, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2478
          "use heavyweight instead of lightweight Java monitors")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2479
                                                                            \
13087
673ea6efaf18 7158800: Improve storage of symbol tables
coleenp
parents: 12781
diff changeset
  2480
  product(bool, PrintStringTableStatistics, false,                          \
673ea6efaf18 7158800: Improve storage of symbol tables
coleenp
parents: 12781
diff changeset
  2481
          "print statistics about the StringTable and SymbolTable")         \
673ea6efaf18 7158800: Improve storage of symbol tables
coleenp
parents: 12781
diff changeset
  2482
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2483
  notproduct(bool, PrintSymbolTableSizeHistogram, false,                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2484
          "print histogram of the symbol table")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2485
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2486
  notproduct(bool, ExitVMOnVerifyError, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2487
          "standard exit from VM if bytecode verify error "                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2488
          "(only in debug mode)")                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2489
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2490
  notproduct(ccstr, AbortVMOnException, NULL,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2491
          "Call fatal if this exception is thrown.  Example: "              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2492
          "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2493
                                                                            \
6179
4846648c4b7b 6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents: 6062
diff changeset
  2494
  notproduct(ccstr, AbortVMOnExceptionMessage, NULL,                        \
4846648c4b7b 6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents: 6062
diff changeset
  2495
          "Call fatal if the exception pointed by AbortVMOnException "      \
4846648c4b7b 6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents: 6062
diff changeset
  2496
          "has this message.")                                              \
4846648c4b7b 6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents: 6062
diff changeset
  2497
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2498
  develop(bool, DebugVtables, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2499
          "add debugging code to vtable dispatch")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2500
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2501
  develop(bool, PrintVtables, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2502
          "print vtables when printing klass")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2503
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2504
  notproduct(bool, PrintVtableStats, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2505
          "print vtables stats at end of run")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2506
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2507
  develop(bool, TraceCreateZombies, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2508
          "trace creation of zombie nmethods")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2509
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2510
  notproduct(bool, IgnoreLockingAssertions, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2511
          "disable locking assertions (for speed)")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2512
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2513
  product(bool, RangeCheckElimination, true,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2514
          "Split loop iterations to eliminate range checks")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2515
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2516
  develop_pd(bool, UncommonNullCast,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2517
          "track occurrences of null in casts; adjust compiler tactics")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2518
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2519
  develop(bool, TypeProfileCasts,  true,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2520
          "treat casts like calls for purposes of type profiling")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2521
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2522
  develop(bool, DelayCompilationDuringStartup, true,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2523
          "Delay invoking the compiler until main application class is "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2524
          "loaded")                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2525
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2526
  develop(bool, CompileTheWorld, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2527
          "Compile all methods in all classes in bootstrap class path "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2528
          "(stress test)")                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2529
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2530
  develop(bool, CompileTheWorldPreloadClasses, true,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2531
          "Preload all classes used by a class before start loading")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2532
                                                                            \
4736
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4650
diff changeset
  2533
  notproduct(intx, CompileTheWorldSafepointInterval, 100,                   \
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4650
diff changeset
  2534
          "Force a safepoint every n compiles so sweeper can keep up")      \
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4650
diff changeset
  2535
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2536
  develop(bool, FillDelaySlots, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2537
          "Fill delay slots (on SPARC only)")                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2538
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2539
  develop(bool, TimeLivenessAnalysis, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2540
          "Time computation of bytecode liveness analysis")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2541
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2542
  develop(bool, TraceLivenessGen, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2543
          "Trace the generation of liveness analysis information")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2544
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2545
  notproduct(bool, TraceLivenessQuery, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2546
          "Trace queries of liveness analysis information")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2547
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2548
  notproduct(bool, CollectIndexSetStatistics, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2549
          "Collect information about IndexSets")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2550
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2551
  develop(bool, UseLoopSafepoints, true,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2552
          "Generate Safepoint nodes in every loop")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2553
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2554
  develop(intx, FastAllocateSizeLimit, 128*K,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2555
          /* Note:  This value is zero mod 1<<13 for a cheap sparc set. */  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2556
          "Inline allocations larger than this in doublewords must go slow")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2557
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2558
  product(bool, AggressiveOpts, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2559
          "Enable aggressive optimizations - see arguments.cpp")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2560
                                                                            \
618
9641c2c8f977 6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents: 600
diff changeset
  2561
  product(bool, UseStringCache, false,                                      \
9641c2c8f977 6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents: 600
diff changeset
  2562
          "Enable String cache capabilities on String.java")                \
9641c2c8f977 6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents: 600
diff changeset
  2563
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2564
  /* statistics */                                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2565
  develop(bool, CountCompiledCalls, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2566
          "counts method invocations")                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2567
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2568
  notproduct(bool, CountRuntimeCalls, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2569
          "counts VM runtime calls")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2570
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2571
  develop(bool, CountJNICalls, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2572
          "counts jni method invocations")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2573
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2574
  notproduct(bool, CountJVMCalls, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2575
          "counts jvm method invocations")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2576
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2577
  notproduct(bool, CountRemovableExceptions, false,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2578
          "count exceptions that could be replaced by branches due to "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2579
          "inlining")                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2580
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2581
  notproduct(bool, ICMissHistogram, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2582
          "produce histogram of IC misses")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2583
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2584
  notproduct(bool, PrintClassStatistics, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2585
          "prints class statistics at end of run")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2586
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2587
  notproduct(bool, PrintMethodStatistics, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2588
          "prints method statistics at end of run")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2589
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2590
  /* interpreter */                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2591
  develop(bool, ClearInterpreterLocals, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2592
          "Always clear local variables of interpreter activations upon "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2593
          "entry")                                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2594
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2595
  product_pd(bool, RewriteBytecodes,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2596
          "Allow rewriting of bytecodes (bytecodes are not immutable)")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2597
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2598
  product_pd(bool, RewriteFrequentPairs,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2599
          "Rewrite frequently used bytecode pairs into a single bytecode")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2600
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
  2601
  diagnostic(bool, PrintInterpreter, false,                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2602
          "Prints the generated interpreter code")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2603
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2604
  product(bool, UseInterpreter, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2605
          "Use interpreter for non-compiled methods")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2606
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2607
  develop(bool, UseFastSignatureHandlers, true,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2608
          "Use fast signature handlers for native calls")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2609
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2610
  product(bool, UseLoopCounter, true,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2611
          "Increment invocation counter on backward branch")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2612
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2613
  product(bool, UseFastEmptyMethods, true,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2614
          "Use fast method entry code for empty methods")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2615
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2616
  product(bool, UseFastAccessorMethods, true,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2617
          "Use fast method entry code for accessor methods")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2618
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2619
  product_pd(bool, UseOnStackReplacement,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2620
           "Use on stack replacement, calls runtime if invoc. counter "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2621
           "overflows in loop")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2622
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2623
  notproduct(bool, TraceOnStackReplacement, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2624
          "Trace on stack replacement")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2625
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2626
  product_pd(bool, PreferInterpreterNativeStubs,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2627
          "Use always interpreter stubs for native methods invoked via "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2628
          "interpreter")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2629
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2630
  develop(bool, CountBytecodes, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2631
          "Count number of bytecodes executed")                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2632
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2633
  develop(bool, PrintBytecodeHistogram, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2634
          "Print histogram of the executed bytecodes")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2635
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2636
  develop(bool, PrintBytecodePairHistogram, false,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2637
          "Print histogram of the executed bytecode pairs")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2638
                                                                            \
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents: 249
diff changeset
  2639
  diagnostic(bool, PrintSignatureHandlers, false,                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2640
          "Print code generated for native method signature handlers")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2641
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2642
  develop(bool, VerifyOops, false,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2643
          "Do plausibility checks for oops")                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2644
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2645
  develop(bool, CheckUnhandledOops, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2646
          "Check for unhandled oops in VM code")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2647
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2648
  develop(bool, VerifyJNIFields, trueInDebug,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2649
          "Verify jfieldIDs for instance fields")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2650
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2651
  notproduct(bool, VerifyJNIEnvThread, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2652
          "Verify JNIEnv.thread == Thread::current() when entering VM "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2653
          "from JNI")                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2654
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2655
  develop(bool, VerifyFPU, false,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2656
          "Verify FPU state (check for NaN's, etc.)")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2657
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2658
  develop(bool, VerifyThread, false,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2659
          "Watch the thread register for corruption (SPARC only)")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2660
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2661
  develop(bool, VerifyActivationFrameSize, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2662
          "Verify that activation frame didn't become smaller than its "    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2663
          "minimal size")                                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2664
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2665
  develop(bool, TraceFrequencyInlining, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2666
          "Trace frequency based inlining")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2667
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2668
  develop_pd(bool, InlineIntrinsics,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2669
           "Inline intrinsics that can be statically resolved")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2670
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2671
  product_pd(bool, ProfileInterpreter,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2672
           "Profile at the bytecode level during interpretation")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2673
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2674
  develop_pd(bool, ProfileTraps,                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2675
          "Profile deoptimization traps at the bytecode level")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2676
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2677
  product(intx, ProfileMaturityPercentage, 20,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2678
          "number of method invocations/branches (expressed as % of "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2679
          "CompileThreshold) before using the method's profile")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2680
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2681
  develop(bool, PrintMethodData, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2682
           "Print the results of +ProfileInterpreter at end of run")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2683
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2684
  develop(bool, VerifyDataPointer, trueInDebug,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2685
          "Verify the method data pointer during interpreter profiling")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2686
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2687
  develop(bool, VerifyCompiledCode, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2688
          "Include miscellaneous runtime verifications in nmethod code; "   \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2689
          "default off because it disturbs nmethod size heuristics")        \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2690
                                                                            \
4489
514173c9a0c2 6361589: Print out stack trace for target thread of GC crash
minqi
parents: 4434
diff changeset
  2691
  notproduct(bool, CrashGCForDumpingJavaThread, false,                      \
514173c9a0c2 6361589: Print out stack trace for target thread of GC crash
minqi
parents: 4434
diff changeset
  2692
          "Manually make GC thread crash then dump java stack trace;  "     \
514173c9a0c2 6361589: Print out stack trace for target thread of GC crash
minqi
parents: 4434
diff changeset
  2693
          "Test only")                                                      \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2694
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2695
  /* compilation */                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2696
  product(bool, UseCompiler, true,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2697
          "use compilation")                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2698
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2699
  develop(bool, TraceCompilationPolicy, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2700
          "Trace compilation policy")                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2701
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2702
  develop(bool, TimeCompilationPolicy, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2703
          "Time the compilation policy")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2704
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2705
  product(bool, UseCounterDecay, true,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2706
           "adjust recompilation counters")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2707
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2708
  develop(intx, CounterHalfLifeTime,    30,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2709
          "half-life time of invocation counters (in secs)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2710
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2711
  develop(intx, CounterDecayMinIntervalLength,   500,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2712
          "Min. ms. between invocation of CounterDecay")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2713
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2714
  product(bool, AlwaysCompileLoopMethods, false,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2715
          "when using recompilation, never interpret methods "              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2716
          "containing loops")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2717
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2718
  product(bool, DontCompileHugeMethods, true,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2719
          "don't compile methods > HugeMethodLimit")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2720
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2721
  /* Bytecode escape analysis estimation. */                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2722
  product(bool, EstimateArgEscape, true,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2723
          "Analyze bytecodes to estimate escape state of arguments")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2724
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2725
  product(intx, BCEATraceLevel, 0,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2726
          "How much tracing to do of bytecode escape analysis estimates")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2727
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2728
  product(intx, MaxBCEAEstimateLevel, 5,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2729
          "Maximum number of nested calls that are analyzed by BC EA.")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2730
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2731
  product(intx, MaxBCEAEstimateSize, 150,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2732
          "Maximum bytecode size of a method to be analyzed by BC EA.")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2733
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2734
  product(intx,  AllocatePrefetchStyle, 1,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2735
          "0 = no prefetch, "                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2736
          "1 = prefetch instructions for each allocation, "                 \
5251
f86f7a86d761 6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents: 5250
diff changeset
  2737
          "2 = use TLAB watermark to gate allocation prefetch, "            \
f86f7a86d761 6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents: 5250
diff changeset
  2738
          "3 = use BIS instruction on Sparc for allocation prefetch")       \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2739
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2740
  product(intx,  AllocatePrefetchDistance, -1,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2741
          "Distance to prefetch ahead of allocation pointer")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2742
                                                                            \
10267
8bdeec886dc4 7079329: Adjust allocation prefetching for T4
kvn
parents: 10252
diff changeset
  2743
  product(intx,  AllocatePrefetchLines, 3,                                  \
8bdeec886dc4 7079329: Adjust allocation prefetching for T4
kvn
parents: 10252
diff changeset
  2744
          "Number of lines to prefetch ahead of array allocation pointer")  \
8bdeec886dc4 7079329: Adjust allocation prefetching for T4
kvn
parents: 10252
diff changeset
  2745
                                                                            \
8bdeec886dc4 7079329: Adjust allocation prefetching for T4
kvn
parents: 10252
diff changeset
  2746
  product(intx,  AllocateInstancePrefetchLines, 1,                          \
8bdeec886dc4 7079329: Adjust allocation prefetching for T4
kvn
parents: 10252
diff changeset
  2747
          "Number of lines to prefetch ahead of instance allocation pointer") \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2748
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2749
  product(intx,  AllocatePrefetchStepSize, 16,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2750
          "Step size in bytes of sequential prefetch instructions")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2751
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2752
  product(intx,  AllocatePrefetchInstr, 0,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2753
          "Prefetch instruction to prefetch ahead of allocation pointer")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2754
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2755
  /* deoptimization */                                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2756
  develop(bool, TraceDeoptimization, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2757
          "Trace deoptimization")                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2758
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2759
  develop(bool, DebugDeoptimization, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2760
          "Tracing various information while debugging deoptimization")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2761
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2762
  product(intx, SelfDestructTimer, 0,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2763
          "Will cause VM to terminate after a given time (in minutes) "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2764
          "(0 means off)")                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2765
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2766
  product(intx, MaxJavaStackTraceDepth, 1024,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2767
          "Max. no. of lines in the stack trace for Java exceptions "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2768
          "(0 means all)")                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2769
                                                                            \
9429
4569a4c199da 7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents: 9182
diff changeset
  2770
  NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000,          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2771
          "Guarantee a safepoint (at least) every so many milliseconds "    \
8107
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2772
          "(0 means none)"))                                                \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2773
                                                                            \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2774
  EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0,               \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2775
          "Guarantee a safepoint (at least) every so many milliseconds "    \
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2776
          "(0 means none)"))                                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2777
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2778
  product(intx, SafepointTimeoutDelay, 10000,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2779
          "Delay in milliseconds for option SafepointTimeout")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2780
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  2781
  product(intx, NmethodSweepFraction, 16,                                   \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2782
          "Number of invocations of sweeper to cover all nmethods")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2783
                                                                            \
5533
e8d9ff82ec62 6950075: nmethod sweeper should operate concurrently
never
parents: 5426
diff changeset
  2784
  product(intx, NmethodSweepCheckInterval, 5,                               \
e8d9ff82ec62 6950075: nmethod sweeper should operate concurrently
never
parents: 5426
diff changeset
  2785
          "Compilers wake up every n seconds to possibly sweep nmethods")   \
e8d9ff82ec62 6950075: nmethod sweeper should operate concurrently
never
parents: 5426
diff changeset
  2786
                                                                            \
9942
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2787
  notproduct(bool, LogSweeper, false,                                       \
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2788
            "Keep a ring buffer of sweeper activity")                       \
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2789
                                                                            \
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2790
  notproduct(intx, SweeperLogEntries, 1024,                                 \
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2791
            "Number of records in the ring buffer of sweeper activity")     \
2e86734ba620 6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents: 9640
diff changeset
  2792
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2793
  notproduct(intx, MemProfilingInterval, 500,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2794
          "Time between each invocation of the MemProfiler")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2795
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2796
  develop(intx, MallocCatchPtr, -1,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2797
          "Hit breakpoint when mallocing/freeing this pointer")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2798
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2799
  notproduct(intx, AssertRepeat, 1,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2800
          "number of times to evaluate expression in assert "               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2801
          "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2802
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2803
  notproduct(ccstrlist, SuppressErrorAt, "",                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2804
          "List of assertions (file:line) to muzzle")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2805
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2806
  notproduct(uintx, HandleAllocationLimit, 1024,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2807
          "Threshold for HandleMark allocation when +TraceHandleAllocation "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2808
          "is used")                                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2809
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2810
  develop(uintx, TotalHandleAllocationLimit, 1024,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2811
          "Threshold for total handle allocation when "                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2812
          "+TraceHandleAllocation is used")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2813
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2814
  develop(intx, StackPrintLimit, 100,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2815
          "number of stack frames to print in VM-level stack dump")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2816
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2817
  notproduct(intx, MaxElementPrintSize, 256,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2818
          "maximum number of elements to print")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2819
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2820
  notproduct(intx, MaxSubklassPrintSize, 4,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2821
          "maximum number of subklasses to print when printing klass")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2822
                                                                            \
4586
f1c484fca023 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 4579
diff changeset
  2823
  product(intx, MaxInlineLevel, 9,                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2824
          "maximum number of nested calls that are inlined")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2825
                                                                            \
4586
f1c484fca023 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 4579
diff changeset
  2826
  product(intx, MaxRecursiveInlineLevel, 1,                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2827
          "maximum number of nested recursive calls that are inlined")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2828
                                                                            \
2342
9a1260c3679d 6821700: tune VM flags for peak performance
kvn
parents: 2259
diff changeset
  2829
  product_pd(intx, InlineSmallCode,                                         \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2830
          "Only inline already compiled methods if their code size is "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2831
          "less than this")                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2832
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2833
  product(intx, MaxInlineSize, 35,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2834
          "maximum bytecode size of a method to be inlined")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2835
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2836
  product_pd(intx, FreqInlineSize,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2837
          "maximum bytecode size of a frequent method to be inlined")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2838
                                                                            \
4586
f1c484fca023 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 4579
diff changeset
  2839
  product(intx, MaxTrivialSize, 6,                                          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2840
          "maximum bytecode size of a trivial method to be inlined")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2841
                                                                            \
4586
f1c484fca023 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 4579
diff changeset
  2842
  product(intx, MinInliningThreshold, 250,                                  \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2843
          "min. invocation count a method needs to have to be inlined")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2844
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2845
  develop(intx, MethodHistogramCutoff, 100,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2846
          "cutoff value for method invoc. histogram (+CountCalls)")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2847
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2848
  develop(intx, ProfilerNumberOfInterpretedMethods, 25,                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2849
          "# of interpreted methods to show in profile")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2850
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2851
  develop(intx, ProfilerNumberOfCompiledMethods, 25,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2852
          "# of compiled methods to show in profile")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2853
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2854
  develop(intx, ProfilerNumberOfStubMethods, 25,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2855
          "# of stub methods to show in profile")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2856
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2857
  develop(intx, ProfilerNumberOfRuntimeStubNodes, 25,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2858
          "# of runtime stub nodes to show in profile")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2859
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2860
  product(intx, ProfileIntervalsTicks, 100,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2861
          "# of ticks between printing of interval profile "                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2862
          "(+ProfileIntervals)")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2863
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2864
  notproduct(intx, ScavengeALotInterval,     1,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2865
          "Interval between which scavenge will occur with +ScavengeALot")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2866
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2867
  notproduct(intx, FullGCALotInterval,     1,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2868
          "Interval between which full gc will occur with +FullGCALot")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2869
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2870
  notproduct(intx, FullGCALotStart,     0,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2871
          "For which invocation to start FullGCAlot")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2872
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2873
  notproduct(intx, FullGCALotDummies,  32*K,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2874
          "Dummy object allocated with +FullGCALot, forcing all objects "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2875
          "to move")                                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2876
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2877
  develop(intx, DontYieldALotInterval,    10,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2878
          "Interval between which yields will be dropped (milliseconds)")   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2879
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2880
  develop(intx, MinSleepInterval,     1,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2881
          "Minimum sleep() interval (milliseconds) when "                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2882
          "ConvertSleepToYield is off (used for SOLARIS)")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2883
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2884
  develop(intx, ProfilerPCTickThreshold,    15,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2885
          "Number of ticks in a PC buckets to be a hotspot")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2886
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2887
  notproduct(intx, DeoptimizeALotInterval,     5,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2888
          "Number of exits until DeoptimizeALot kicks in")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2889
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2890
  notproduct(intx, ZombieALotInterval,     5,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2891
          "Number of exits until ZombieALot kicks in")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2892
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2893
  develop(bool, StressNonEntrant, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2894
          "Mark nmethods non-entrant at registration")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2895
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2896
  diagnostic(intx, MallocVerifyInterval,     0,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2897
          "if non-zero, verify C heap after every N calls to "              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2898
          "malloc/realloc/free")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2899
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2900
  diagnostic(intx, MallocVerifyStart,     0,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2901
          "if non-zero, start verifying C heap after Nth call to "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2902
          "malloc/realloc/free")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2903
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  2904
  product(intx, TypeProfileWidth,     2,                                    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2905
          "number of receiver types to record in call/cast profile")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2906
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2907
  develop(intx, BciProfileWidth,      2,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2908
          "number of return bci's to record in ret profile")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2909
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2910
  product(intx, PerMethodRecompilationCutoff, 400,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2911
          "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2912
                                                                            \
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
  2913
  product(intx, PerBytecodeRecompilationCutoff, 200,                        \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2914
          "Per-BCI limit on repeated recompilation (-1=>'Inf')")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2915
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2916
  product(intx, PerMethodTrapLimit,  100,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2917
          "Limit on traps (of one kind) in a method (includes inlines)")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2918
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2919
  product(intx, PerBytecodeTrapLimit,  4,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2920
          "Limit on traps (of one kind) at a particular BCI")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2921
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2922
  develop(intx, InlineFrequencyRatio,    20,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2923
          "Ratio of call site execution to caller method invocation")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2924
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2925
  develop_pd(intx, InlineFrequencyCount,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2926
          "Count of call site execution necessary to trigger frequent "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2927
          "inlining")                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2928
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2929
  develop(intx, InlineThrowCount,    50,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2930
          "Force inlining of interpreted methods that throw this often")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2931
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2932
  develop(intx, InlineThrowMaxSize,   200,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2933
          "Force inlining of throwing methods smaller than this")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2934
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2935
  develop(intx, ProfilerNodeSize,  1024,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2936
          "Size in K to allocate for the Profile Nodes of each thread")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2937
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2938
  product_pd(intx, PreInflateSpin,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2939
          "Number of times to spin wait before inflation")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2940
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2941
  /* gc parameters */                                                       \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2942
  product(uintx, InitialHeapSize, 0,                                        \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2943
          "Initial heap size (in bytes); zero means OldSize + NewSize")     \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2944
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2945
  product(uintx, MaxHeapSize, ScaleForWordSize(96*M),                       \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2946
          "Maximum heap size (in bytes)")                                   \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2947
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2948
  product(uintx, OldSize, ScaleForWordSize(4*M),                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2949
          "Initial tenured generation size (in bytes)")                     \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2950
                                                                            \
5038
de3fb1c2d510 6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents: 4759
diff changeset
  2951
  product(uintx, NewSize, ScaleForWordSize(1*M),                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2952
          "Initial new generation size (in bytes)")                         \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2953
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2954
  product(uintx, MaxNewSize, max_uintx,                                     \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2955
          "Maximum new generation size (in bytes), max_uintx means set "    \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2956
          "ergonomically")                                                  \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2957
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2958
  product(uintx, PretenureSizeThreshold, 0,                                 \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2959
          "Maximum size in bytes of objects allocated in DefNew "           \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2960
          "generation; zero means no maximum")                              \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2961
                                                                            \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2962
  product(uintx, TLABSize, 0,                                               \
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2963
          "Starting TLAB size (in bytes); zero means set ergonomically")    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2964
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2965
  product(uintx, MinTLABSize, 2*K,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2966
          "Minimum allowed TLAB size (in bytes)")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2967
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2968
  product(uintx, TLABAllocationWeight, 35,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2969
          "Allocation averaging weight")                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2970
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2971
  product(uintx, TLABWasteTargetPercent, 1,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2972
          "Percentage of Eden that can be wasted")                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2973
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2974
  product(uintx, TLABRefillWasteFraction,    64,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2975
          "Max TLAB waste at a refill (internal fragmentation)")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2976
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2977
  product(uintx, TLABWasteIncrement,    4,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2978
          "Increment allowed waste at slow allocation")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2979
                                                                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2980
  product(intx, SurvivorRatio, 8,                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2981
          "Ratio of eden/survivor space size")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2982
                                                                            \
4434
4b41e5b42f81 6887571: Increase default heap config sizes
phh
parents: 4013
diff changeset
  2983
  product(intx, NewRatio, 2,                                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2984
          "Ratio of new/old generation sizes")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2985
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2986
  product_pd(uintx, NewSizeThreadIncrease,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2987
          "Additional size added to desired new generation size per "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2988
          "non-daemon thread (in bytes)")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2989
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2990
  product_pd(uintx, MetaspaceSize,                                          \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2991
          "Initial size of Metaspaces (in bytes)")                          \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2992
                                                                            \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2993
  product(uintx, MaxMetaspaceSize, max_uintx,                               \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2994
          "Maximum size of Metaspaces (in bytes)")                          \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2995
                                                                            \
13739
35cd081a64ea 7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents: 13728
diff changeset
  2996
  product(uintx, ClassMetaspaceSize, 2*M,                                   \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2997
          "Maximum size of InstanceKlass area in Metaspace used for "       \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  2998
          "UseCompressedKlassPointers")                                     \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2999
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3000
  product(uintx, MinHeapFreeRatio,    40,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3001
          "Min percentage of heap free after GC to avoid expansion")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3002
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3003
  product(uintx, MaxHeapFreeRatio,    70,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3004
          "Max percentage of heap free after GC to avoid shrinking")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3005
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3006
  product(intx, SoftRefLRUPolicyMSPerMB, 1000,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3007
          "Number of milliseconds per MB of free space in the heap")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3008
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3009
  product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K),                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3010
          "Min change in heap space due to GC (in bytes)")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3011
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  3012
  product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K),            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3013
          "Min expansion of permanent heap (in bytes)")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3014
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  3015
  product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M),              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3016
          "Max expansion of permanent heap without full GC (in bytes)")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3017
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3018
  product(intx, QueuedAllocationWarningCount, 0,                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3019
          "Number of times an allocation that queues behind a GC "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3020
          "will retry before printing a warning")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3021
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3022
  diagnostic(uintx, VerifyGCStartAt,   0,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3023
          "GC invoke count where +VerifyBefore/AfterGC kicks in")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3024
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3025
  diagnostic(intx, VerifyGCLevel,     0,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3026
          "Generation level at which to start +VerifyBefore/AfterGC")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3027
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  3028
  product(uintx, MaxTenuringThreshold,    15,                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3029
          "Maximum value for tenuring threshold")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3030
                                                                            \
13925
37f75ba502b1 8000351: Tenuring threshold should be unsigned
jwilhelm
parents: 13924
diff changeset
  3031
  product(uintx, InitialTenuringThreshold,    7,                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3032
          "Initial value for tenuring threshold")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3033
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3034
  product(intx, TargetSurvivorRatio,    50,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3035
          "Desired percentage of survivor space used after scavenge")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3036
                                                                            \
1557
13878a2edfef 6765804: GC "dead ratios" should be unsigned
jcoomes
parents: 1438
diff changeset
  3037
  product(uintx, MarkSweepDeadRatio,     5,                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3038
          "Percentage (0-100) of the old gen allowed as dead wood."         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3039
          "Serial mark sweep treats this as both the min and max value."    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3040
          "CMS uses this value only if it falls back to mark sweep."        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3041
          "Par compact uses a variable scale based on the density of the"   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3042
          "generation and treats this as the max value when the heap is"    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3043
          "either completely full or completely empty.  Par compact also"   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3044
          "has a smaller default value; see arguments.cpp.")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3045
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3046
  product(intx, MarkSweepAlwaysCompactCount,     4,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3047
          "How often should we fully compact the heap (ignoring the dead "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3048
          "space parameters)")                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3049
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3050
  product(intx, PrintCMSStatistics, 0,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3051
          "Statistics for CMS")                                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3052
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3053
  product(bool, PrintCMSInitiationStatistics, false,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3054
          "Statistics for initiating a CMS collection")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3055
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3056
  product(intx, PrintFLSStatistics, 0,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3057
          "Statistics for CMS' FreeListSpace")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3058
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3059
  product(intx, PrintFLSCensus, 0,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3060
          "Census for CMS' FreeListSpace")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3061
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3062
  develop(uintx, GCExpandToAllocateDelayMillis, 0,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3063
          "Delay in ms between expansion and allocation")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3064
                                                                            \
13924
159131321ed4 7199349: NPG: PS: Crash seen in jprt
jmasa
parents: 13861
diff changeset
  3065
  develop(uintx, GCWorkerDelayMillis, 0,                                    \
159131321ed4 7199349: NPG: PS: Crash seen in jprt
jmasa
parents: 13861
diff changeset
  3066
          "Delay in ms in scheduling GC workers")                           \
159131321ed4 7199349: NPG: PS: Crash seen in jprt
jmasa
parents: 13861
diff changeset
  3067
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3068
  product(intx, DeferThrSuspendLoopCount,     4000,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3069
          "(Unstable) Number of times to iterate in safepoint loop "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3070
          " before blocking VM threads ")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3071
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3072
  product(intx, DeferPollingPageLoopCount,     -1,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3073
          "(Unsafe,Unstable) Number of iterations in safepoint loop "       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3074
          "before changing safepoint polling page to RO ")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3075
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3076
  product(intx, SafepointSpinBeforeYield, 2000,  "(Unstable)")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3077
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3078
  product(bool, PSChunkLargeArrays, true,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3079
          "true: process large arrays in chunks")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3080
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3081
  product(uintx, GCDrainStackTargetSize, 64,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3082
          "how many entries we'll try to leave on the stack during "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3083
          "parallel GC")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3084
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3085
  /* stack parameters */                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3086
  product_pd(intx, StackYellowPages,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3087
          "Number of yellow zone (recoverable overflows) pages")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3088
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3089
  product_pd(intx, StackRedPages,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3090
          "Number of red zone (unrecoverable overflows) pages")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3091
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3092
  product_pd(intx, StackShadowPages,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3093
          "Number of shadow zone (for overflow checking) pages"             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3094
          " this should exceed the depth of the VM and native call stack")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3095
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3096
  product_pd(intx, ThreadStackSize,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3097
          "Thread Stack Size (in Kbytes)")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3098
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3099
  product_pd(intx, VMThreadStackSize,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3100
          "Non-Java Thread Stack Size (in Kbytes)")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3101
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3102
  product_pd(intx, CompilerThreadStackSize,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3103
          "Compiler Thread Stack Size (in Kbytes)")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3104
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3105
  develop_pd(uintx, JVMInvokeMethodSlack,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3106
          "Stack space (bytes) required for JVM_InvokeMethod to complete")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3107
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3108
  product(uintx, ThreadSafetyMargin, 50*M,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3109
          "Thread safety margin is used on fixed-stack LinuxThreads (on "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3110
          "Linux/x86 only) to prevent heap-stack collision. Set to 0 to "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3111
          "disable this feature")                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3112
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3113
  /* code cache parameters */                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3114
  develop(uintx, CodeCacheSegmentSize, 64,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3115
          "Code cache segment size (in bytes) - smallest unit of "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3116
          "allocation")                                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3117
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3118
  develop_pd(intx, CodeEntryAlignment,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3119
          "Code entry alignment for generated code (in bytes)")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3120
                                                                            \
5249
5cac34e6fe54 6940701: Don't align loops in stubs for Niagara sparc
kvn
parents: 5235
diff changeset
  3121
  product_pd(intx, OptoLoopAlignment,                                       \
5cac34e6fe54 6940701: Don't align loops in stubs for Niagara sparc
kvn
parents: 5235
diff changeset
  3122
          "Align inner loops to zero relative to this modulus")             \
5cac34e6fe54 6940701: Don't align loops in stubs for Niagara sparc
kvn
parents: 5235
diff changeset
  3123
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3124
  product_pd(uintx, InitialCodeCacheSize,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3125
          "Initial code cache size (in bytes)")                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3126
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3127
  product_pd(uintx, ReservedCodeCacheSize,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3128
          "Reserved code cache size (in bytes) - maximum code cache size")  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3129
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3130
  product(uintx, CodeCacheMinimumFreeSpace, 500*K,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3131
          "When less than X space left, we stop compiling.")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3132
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3133
  product_pd(uintx, CodeCacheExpansionSize,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3134
          "Code cache expansion size (in bytes)")                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3135
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3136
  develop_pd(uintx, CodeCacheMinBlockLength,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3137
          "Minimum number of segments in a code cache block.")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3138
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3139
  notproduct(bool, ExitOnFullCodeCache, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3140
          "Exit the VM if we fill the code cache.")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3141
                                                                            \
10963
77222140e9ad 7103784: enable some flags by default
never
parents: 10739
diff changeset
  3142
  product(bool, UseCodeCacheFlushing, true,                                 \
4750
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3143
          "Attempt to clean the code cache before shutting off compiler")   \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3144
                                                                            \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3145
  product(intx,  MinCodeCacheFlushingInterval, 30,                          \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3146
          "Min number of seconds between code cache cleaning sessions")     \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3147
                                                                            \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3148
  product(uintx,  CodeCacheFlushingMinimumFreeSpace, 1500*K,                \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3149
          "When less than X space left, start code cache cleaning")         \
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4736
diff changeset
  3150
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3151
  /* interpreter debugging */                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3152
  develop(intx, BinarySwitchThreshold, 5,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3153
          "Minimal number of lookupswitch entries for rewriting to binary " \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3154
          "switch")                                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3155
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3156
  develop(intx, StopInterpreterAt, 0,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3157
          "Stops interpreter execution at specified bytecode number")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3158
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3159
  develop(intx, TraceBytecodesAt, 0,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3160
          "Traces bytecodes starting with specified bytecode number")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3161
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3162
  /* compiler interface */                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3163
  develop(intx, CIStart, 0,                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3164
          "the id of the first compilation to permit")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3165
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3166
  develop(intx, CIStop,    -1,                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3167
          "the id of the last compilation to permit")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3168
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3169
  develop(intx, CIStartOSR,     0,                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3170
          "the id of the first osr compilation to permit "                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3171
          "(CICountOSR must be on)")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3172
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3173
  develop(intx, CIStopOSR,    -1,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3174
          "the id of the last osr compilation to permit "                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3175
          "(CICountOSR must be on)")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3176
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3177
  develop(intx, CIBreakAtOSR,    -1,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3178
          "id of osr compilation to break at")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3179
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3180
  develop(intx, CIBreakAt,    -1,                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3181
          "id of compilation to break at")                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3182
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3183
  product(ccstrlist, CompileOnly, "",                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3184
          "List of methods (pkg/class.name) to restrict compilation to")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3185
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3186
  product(ccstr, CompileCommandFile, NULL,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3187
          "Read compiler commands from this file [.hotspot_compiler]")      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3188
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3189
  product(ccstrlist, CompileCommand, "",                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3190
          "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3191
                                                                            \
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3192
  develop(bool, ReplayCompiles, false,                                      \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3193
          "Enable replay of compilations from ReplayDataFile")              \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3194
                                                                            \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3195
  develop(ccstr, ReplayDataFile, "replay.txt",                              \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3196
          "file containing compilation replay information")                 \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3197
                                                                            \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3198
  develop(intx, ReplaySuppressInitializers, 2,                              \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3199
          "Controls handling of class initialization during replay"         \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3200
          "0 - don't do anything special"                                   \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3201
          "1 - treat all class initializers as empty"                       \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3202
          "2 - treat class initializers for application classes as empty"   \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3203
          "3 - allow all class initializers to run during bootstrap but"    \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3204
          "    pretend they are empty after starting replay")               \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3205
                                                                            \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3206
  develop(bool, ReplayIgnoreInitErrors, false,                              \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3207
          "Ignore exceptions thrown during initialization for replay")      \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3208
                                                                            \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3209
  develop(bool, DumpReplayDataOnError, true,                                \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3210
          "record replay data for crashing compiler threads")               \
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14386
diff changeset
  3211
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3212
  product(bool, CICompilerCountPerCPU, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3213
          "1 compiler thread for log(N CPUs)")                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3214
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3215
  develop(intx, CIFireOOMAt,    -1,                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3216
          "Fire OutOfMemoryErrors throughout CI for testing the compiler "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3217
          "(non-negative value throws OOM after this many CI accesses "     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3218
          "in each compile)")                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3219
                                                                            \
3609
5f16c48e608a 6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents: 3605
diff changeset
  3220
  notproduct(bool, CIObjectFactoryVerify, false,                            \
5f16c48e608a 6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents: 3605
diff changeset
  3221
          "enable potentially expensive verification in ciObjectFactory")   \
5f16c48e608a 6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents: 3605
diff changeset
  3222
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3223
  /* Priorities */                                                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3224
  product_pd(bool, UseThreadPriorities,  "Use native thread priorities")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3225
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3226
  product(intx, ThreadPriorityPolicy, 0,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3227
          "0 : Normal.                                                     "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3228
          "    VM chooses priorities that are appropriate for normal       "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3229
          "    applications. On Solaris NORM_PRIORITY and above are mapped "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3230
          "    to normal native priority. Java priorities below NORM_PRIORITY"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3231
          "    map to lower native priority values. On Windows applications"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3232
          "    are allowed to use higher native priorities. However, with  "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3233
          "    ThreadPriorityPolicy=0, VM will not use the highest possible"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3234
          "    native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may   "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3235
          "    interfere with system threads. On Linux thread priorities   "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3236
          "    are ignored because the OS does not support static priority "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3237
          "    in SCHED_OTHER scheduling class which is the only choice for"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3238
          "    non-root, non-realtime applications.                        "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3239
          "1 : Aggressive.                                                 "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3240
          "    Java thread priorities map over to the entire range of      "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3241
          "    native thread priorities. Higher Java thread priorities map "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3242
          "    to higher native thread priorities. This policy should be   "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3243
          "    used with care, as sometimes it can cause performance       "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3244
          "    degradation in the application and/or the entire system. On "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3245
          "    Linux this policy requires root privilege.")                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3246
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3247
  product(bool, ThreadPriorityVerbose, false,                               \
11601
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3248
          "Print priority changes")                                         \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3249
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3250
  product(intx, DefaultThreadPriority, -1,                                  \
11601
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3251
          "The native priority at which threads run if not elsewhere "      \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3252
          "specified (-1 means no change)")                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3253
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3254
  product(intx, CompilerThreadPriority, -1,                                 \
11601
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3255
          "The native priority at which compiler threads should run "       \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3256
          "(-1 means no change)")                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3257
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3258
  product(intx, VMThreadPriority, -1,                                       \
11601
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3259
          "The native priority at which the VM thread should run "          \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3260
          "(-1 means no change)")                                           \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3261
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3262
  product(bool, CompilerThreadHintNoPreempt, true,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3263
          "(Solaris only) Give compiler threads an extra quanta")           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3264
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3265
  product(bool, VMThreadHintNoPreempt, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3266
          "(Solaris only) Give VM thread an extra quanta")                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3267
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3268
  product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3269
  product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3270
  product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3271
  product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3272
  product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3273
  product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3274
  product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3275
  product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3276
  product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3277
  product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3278
                                                                            \
11601
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3279
  experimental(bool, UseCriticalJavaThreadPriority, false,                  \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3280
          "Java thread priority 10 maps to critical scheduling priority")   \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3281
                                                                            \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3282
  experimental(bool, UseCriticalCompilerThreadPriority, false,              \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3283
          "Compiler thread(s) run at critical scheduling priority")         \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3284
                                                                            \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3285
  experimental(bool, UseCriticalCMSThreadPriority, false,                   \
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3286
          "ConcurrentMarkSweep thread runs at critical scheduling priority")\
f359304c1856 7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents: 11487
diff changeset
  3287
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3288
  /* compiler debugging */                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3289
  notproduct(intx, CompileTheWorldStartAt,     1,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3290
          "First class to consider when using +CompileTheWorld")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3291
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3292
  notproduct(intx, CompileTheWorldStopAt, max_jint,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3293
          "Last class to consider when using +CompileTheWorld")             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3294
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3295
  develop(intx, NewCodeParameter,      0,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3296
          "Testing Only: Create a dedicated integer parameter before "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3297
          "putback")                                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3298
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3299
  /* new oopmap storage allocation */                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3300
  develop(intx, MinOopMapAllocation,     8,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3301
          "Minimum number of OopMap entries in an OopMapSet")               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3302
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3303
  /* Background Compilation */                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3304
  develop(intx, LongCompileThreshold,     50,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3305
          "Used with +TraceLongCompiles")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3306
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3307
  product(intx, StarvationMonitorInterval,    200,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3308
          "Pause between each check in ms")                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3309
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3310
  /* recompilation */                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3311
  product_pd(intx, CompileThreshold,                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3312
          "number of interpreted method invocations before (re-)compiling") \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3313
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3314
  product_pd(intx, BackEdgeThreshold,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3315
          "Interpreter Back edge threshold at which an OSR compilation is invoked")\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3316
                                                                            \
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3317
  product(intx, Tier0InvokeNotifyFreqLog, 7,                                \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3318
          "Interpreter (tier 0) invocation notification frequency.")        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3319
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3320
  product(intx, Tier2InvokeNotifyFreqLog, 11,                               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3321
          "C1 without MDO (tier 2) invocation notification frequency.")     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3322
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3323
  product(intx, Tier3InvokeNotifyFreqLog, 10,                               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3324
          "C1 with MDO profiling (tier 3) invocation notification "         \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3325
          "frequency.")                                                     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3326
                                                                            \
10569
f5ce1108443b 7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents: 10565
diff changeset
  3327
  product(intx, Tier23InlineeNotifyFreqLog, 20,                             \
f5ce1108443b 7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents: 10565
diff changeset
  3328
          "Inlinee invocation (tiers 2 and 3) notification frequency")      \
f5ce1108443b 7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents: 10565
diff changeset
  3329
                                                                            \
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3330
  product(intx, Tier0BackedgeNotifyFreqLog, 10,                             \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3331
          "Interpreter (tier 0) invocation notification frequency.")        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3332
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3333
  product(intx, Tier2BackedgeNotifyFreqLog, 14,                             \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3334
          "C1 without MDO (tier 2) invocation notification frequency.")     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3335
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3336
  product(intx, Tier3BackedgeNotifyFreqLog, 13,                             \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3337
          "C1 with MDO profiling (tier 3) invocation notification "         \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3338
          "frequency.")                                                     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3339
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3340
  product(intx, Tier2CompileThreshold, 0,                                   \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3341
          "threshold at which tier 2 compilation is invoked")               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3342
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3343
  product(intx, Tier2BackEdgeThreshold, 0,                                  \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3344
          "Back edge threshold at which tier 2 compilation is invoked")     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3345
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3346
  product(intx, Tier3InvocationThreshold, 200,                              \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3347
          "Compile if number of method invocations crosses this "           \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3348
          "threshold")                                                      \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3349
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3350
  product(intx, Tier3MinInvocationThreshold, 100,                           \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3351
          "Minimum invocation to compile at tier 3")                        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3352
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3353
  product(intx, Tier3CompileThreshold, 2000,                                \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3354
          "Threshold at which tier 3 compilation is invoked (invocation "   \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3355
          "minimum must be satisfied.")                                     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3356
                                                                            \
11566
351229eec596 7132945: Tiered: adjust OSR threshold of level 3
iveresov
parents: 11487
diff changeset
  3357
  product(intx, Tier3BackEdgeThreshold,  60000,                             \
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3358
          "Back edge threshold at which tier 3 OSR compilation is invoked") \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3359
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3360
  product(intx, Tier4InvocationThreshold, 5000,                             \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3361
          "Compile if number of method invocations crosses this "           \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3362
          "threshold")                                                      \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3363
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3364
  product(intx, Tier4MinInvocationThreshold, 600,                           \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3365
          "Minimum invocation to compile at tier 4")                        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3366
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3367
  product(intx, Tier4CompileThreshold, 15000,                               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3368
          "Threshold at which tier 4 compilation is invoked (invocation "   \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3369
          "minimum must be satisfied.")                                     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3370
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3371
  product(intx, Tier4BackEdgeThreshold, 40000,                              \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3372
          "Back edge threshold at which tier 4 OSR compilation is invoked") \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3373
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3374
  product(intx, Tier3DelayOn, 5,                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3375
          "If C2 queue size grows over this amount per compiler thread "    \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3376
          "stop compiling at tier 3 and start compiling at tier 2")         \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3377
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3378
  product(intx, Tier3DelayOff, 2,                                           \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3379
          "If C2 queue size is less than this amount per compiler thread "  \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3380
          "allow methods compiled at tier 2 transition to tier 3")          \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3381
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3382
  product(intx, Tier3LoadFeedback, 5,                                       \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3383
          "Tier 3 thresholds will increase twofold when C1 queue size "     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3384
          "reaches this amount per compiler thread")                        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3385
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3386
  product(intx, Tier4LoadFeedback, 3,                                       \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3387
          "Tier 4 thresholds will increase twofold when C2 queue size "     \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3388
          "reaches this amount per compiler thread")                        \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3389
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3390
  product(intx, TieredCompileTaskTimeout, 50,                               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3391
          "Kill compile task if method was not used within "                \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3392
          "given timeout in milliseconds")                                  \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3393
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3394
  product(intx, TieredStopAtLevel, 4,                                       \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3395
          "Stop at given compilation level")                                \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3396
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3397
  product(intx, Tier0ProfilingStartPercentage, 200,                         \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3398
          "Start profiling in interpreter if the counters exceed tier 3"    \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3399
          "thresholds by the specified percentage")                         \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3400
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3401
  product(intx, TieredRateUpdateMinTime, 1,                                 \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3402
          "Minimum rate sampling interval (in milliseconds)")               \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3403
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3404
  product(intx, TieredRateUpdateMaxTime, 25,                                \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3405
          "Maximum rate sampling interval (in milliseconds)")               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3406
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3407
  product_pd(bool, TieredCompilation,                                       \
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3408
          "Enable tiered compilation")                                      \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3409
                                                                            \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3410
  product(bool, PrintTieredEvents, false,                                   \
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6419
diff changeset
  3411
          "Print tiered events notifications")                              \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3412
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3413
  product_pd(intx, OnStackReplacePercentage,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3414
          "NON_TIERED number of method invocations/branches (expressed as %"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3415
          "of CompileThreshold) before (re-)compiling OSR code")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3416
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3417
  product(intx, InterpreterProfilePercentage, 33,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3418
          "NON_TIERED number of method invocations/branches (expressed as %"\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3419
          "of CompileThreshold) before profiling in the interpreter")       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3420
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3421
  develop(intx, MaxRecompilationSearchLength,    10,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3422
          "max. # frames to inspect searching for recompilee")              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3423
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3424
  develop(intx, MaxInterpretedSearchLength,     3,                          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3425
          "max. # interp. frames to skip when searching for recompilee")    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3426
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3427
  develop(intx, DesiredMethodLimit,  8000,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3428
          "desired max. method size (in bytecodes) after inlining")         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3429
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3430
  develop(intx, HugeMethodLimit,  8000,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3431
          "don't compile methods larger than this if "                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3432
          "+DontCompileHugeMethods")                                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3433
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3434
  /* New JDK 1.4 reflection implementation */                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3435
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3436
  develop(bool, UseNewReflection, true,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3437
          "Temporary flag for transition to reflection based on dynamic "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3438
          "bytecode generation in 1.4; can no longer be turned off in 1.4 " \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3439
          "JDK, and is unneeded in 1.3 JDK, but marks most places VM "      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3440
          "changes were needed")                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3441
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3442
  develop(bool, VerifyReflectionBytecodes, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3443
          "Force verification of 1.4 reflection bytecodes. Does not work "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3444
          "in situations like that described in 4486457 or for "            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3445
          "constructors generated for serialization, so can not be enabled "\
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3446
          "in product.")                                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3447
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3448
  product(bool, ReflectionWrapResolutionErrors, true,                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3449
          "Temporary flag for transition to AbstractMethodError wrapped "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3450
          "in InvocationTargetException. See 6531596")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3451
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3452
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3453
  develop(intx, FastSuperclassLimit, 8,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3454
          "Depth of hardwired instanceof accelerator array")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3455
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3456
  /* Properties for Java libraries  */                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3457
                                                                            \
13197
b552dfeffb3c 7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents: 13195
diff changeset
  3458
  product(uintx, MaxDirectMemorySize, 0,                                    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3459
          "Maximum total size of NIO direct-buffer allocations")            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3460
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3461
  /* temporary developer defined flags  */                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3462
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3463
  diagnostic(bool, UseNewCode, false,                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3464
          "Testing Only: Use the new version while testing")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3465
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3466
  diagnostic(bool, UseNewCode2, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3467
          "Testing Only: Use the new version while testing")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3468
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3469
  diagnostic(bool, UseNewCode3, false,                                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3470
          "Testing Only: Use the new version while testing")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3471
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3472
  /* flags for performance data collection */                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3473
                                                                            \
10020
9325b4244ec4 7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents: 10003
diff changeset
  3474
  product(bool, UsePerfData, falseInEmbedded,                               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3475
          "Flag to disable jvmstat instrumentation for performance testing" \
10020
9325b4244ec4 7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents: 10003
diff changeset
  3476
          "and problem isolation purposes.")                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3477
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3478
  product(bool, PerfDataSaveToFile, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3479
          "Save PerfData memory to hsperfdata_<pid> file on exit")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3480
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3481
  product(ccstr, PerfDataSaveFile, NULL,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3482
          "Save PerfData memory to the specified absolute pathname,"        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3483
           "%p in the file name if present will be replaced by pid")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3484
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3485
  product(intx, PerfDataSamplingInterval, 50 /*ms*/,                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3486
          "Data sampling interval in milliseconds")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3487
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3488
  develop(bool, PerfTraceDataCreation, false,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3489
          "Trace creation of Performance Data Entries")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3490
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3491
  develop(bool, PerfTraceMemOps, false,                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3492
          "Trace PerfMemory create/attach/detach calls")                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3493
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3494
  product(bool, PerfDisableSharedMem, false,                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3495
          "Store performance data in standard memory")                      \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3496
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3497
  product(intx, PerfDataMemorySize, 32*K,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3498
          "Size of performance data memory region. Will be rounded "        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3499
          "up to a multiple of the native os page size.")                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3500
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3501
  product(intx, PerfMaxStringConstLength, 1024,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3502
          "Maximum PerfStringConstant string length before truncation")     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3503
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3504
  product(bool, PerfAllowAtExitRegistration, false,                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3505
          "Allow registration of atexit() methods")                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3506
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3507
  product(bool, PerfBypassFileSystemCheck, false,                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3508
          "Bypass Win32 file system criteria checks (Windows Only)")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3509
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3510
  product(intx, UnguardOnExecutionViolation, 0,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3511
          "Unguard page and retry on no-execute fault (Win32 only)"         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3512
          "0=off, 1=conservative, 2=aggressive")                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3513
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3514
  /* Serviceability Support */                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3515
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3516
  product(bool, ManagementServer, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3517
          "Create JMX Management Server")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3518
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3519
  product(bool, DisableAttachMechanism, false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3520
         "Disable mechanism that allows tools to attach to this VM")        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3521
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3522
  product(bool, StartAttachListener, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3523
          "Always start Attach Listener at VM startup")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3524
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3525
  manageable(bool, PrintConcurrentLocks, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3526
          "Print java.util.concurrent locks in thread dump")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3527
                                                                            \
8124
70ed6d8368bc 7019718: make error reporting flags product instead of diagnostic
kamg
parents: 8119
diff changeset
  3528
  product(bool, TransmitErrorReport, false,                                 \
8114
340b5b8b544b 7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents: 8107
diff changeset
  3529
          "Enable error report transmission on erroneous termination")      \
340b5b8b544b 7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents: 8107
diff changeset
  3530
                                                                            \
8124
70ed6d8368bc 7019718: make error reporting flags product instead of diagnostic
kamg
parents: 8119
diff changeset
  3531
  product(ccstr, ErrorReportServer, NULL,                                   \
8114
340b5b8b544b 7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents: 8107
diff changeset
  3532
          "Override built-in error report server address")                  \
340b5b8b544b 7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents: 8107
diff changeset
  3533
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3534
  /* Shared spaces */                                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3535
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3536
  product(bool, UseSharedSpaces, true,                                      \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3537
          "Use shared spaces for metadata")                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3538
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3539
  product(bool, RequireSharedSpaces, false,                                 \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3540
          "Require shared spaces for metadata")                             \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3541
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3542
  product(bool, DumpSharedSpaces, false,                                    \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3543
           "Special mode: JVM reads a class list, loads classes, builds "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3544
            "shared spaces, and dumps the shared spaces to a file to be "   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3545
            "used in future JVM runs.")                                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3546
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3547
  product(bool, PrintSharedSpaces, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3548
          "Print usage of shared spaces")                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3549
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3550
  product(uintx, SharedReadWriteSize,  NOT_LP64(12*M) LP64_ONLY(16*M),      \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3551
          "Size of read-write space for metadata (in bytes)")               \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3552
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3553
  product(uintx, SharedReadOnlySize,  NOT_LP64(12*M) LP64_ONLY(16*M),       \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3554
          "Size of read-only space for metadata (in bytes)")                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3555
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3556
  product(uintx, SharedMiscDataSize,    NOT_LP64(2*M) LP64_ONLY(4*M),       \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3557
          "Size of the shared miscellaneous data area (in bytes)")          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3558
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3559
  product(uintx, SharedMiscCodeSize,    120*K,                              \
15101
58d43bf04c45 8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents: 14835
diff changeset
  3560
          "Size of the shared miscellaneous code area (in bytes)")          \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3561
                                                                            \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3562
  product(uintx, SharedDummyBlockSize, 0,                                   \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13521
diff changeset
  3563
          "Size of dummy block used to shift heap addresses (in bytes)")    \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3564
                                                                            \
8883
5569135acca3 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 8870
diff changeset
  3565
  diagnostic(bool, EnableInvokeDynamic, true,                               \
5569135acca3 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 8870
diff changeset
  3566
          "support JSR 292 (method handles, invokedynamic, "                \
5569135acca3 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 8870
diff changeset
  3567
          "anonymous classes")                                              \
5569135acca3 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 8870
diff changeset
  3568
                                                                            \
9980
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9968
diff changeset
  3569
  diagnostic(bool, PrintMethodHandleStubs, false,                           \
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9968
diff changeset
  3570
          "Print generated stub code for method handles")                   \
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9968
diff changeset
  3571
                                                                            \
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3572
  develop(bool, TraceMethodHandles, false,                                  \
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3573
          "trace internal method handle operations")                        \
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3574
                                                                            \
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3575
  diagnostic(bool, VerifyMethodHandles, trueInDebug,                        \
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3576
          "perform extra checks when constructing method handles")          \
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2352
diff changeset
  3577
                                                                            \
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13197
diff changeset
  3578
  diagnostic(bool, ShowHiddenFrames, false,                                 \
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13197
diff changeset
  3579
          "show method handle implementation frames (usually hidden)")      \
9946
b3d5b50e2289 7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents: 9942
diff changeset
  3580
                                                                            \
4644
2b1a1bc98168 6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents: 4586
diff changeset
  3581
  experimental(bool, TrustFinalNonStaticFields, false,                      \
2b1a1bc98168 6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents: 4586
diff changeset
  3582
          "trust final non-static declarations for constant folding")       \
2b1a1bc98168 6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents: 4586
diff changeset
  3583
                                                                            \
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2536
diff changeset
  3584
  develop(bool, TraceInvokeDynamic, false,                                  \
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2536
diff changeset
  3585
          "trace internal invoke dynamic operations")                       \
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2536
diff changeset
  3586
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3587
  diagnostic(bool, PauseAtStartup,      false,                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3588
          "Causes the VM to pause at startup time and wait for the pause "  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3589
          "file to be removed (default: ./vm.paused.<pid>)")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3590
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3591
  diagnostic(ccstr, PauseAtStartupFile, NULL,                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3592
          "The file to create and for whose removal to await when pausing " \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3593
          "at startup. (default: ./vm.paused.<pid>)")                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3594
                                                                            \
8476
7e34c2d4cf9b 7022037: Pause when exiting if debugger is attached on windows
sla
parents: 8335
diff changeset
  3595
  diagnostic(bool, PauseAtExit, false,                                      \
7e34c2d4cf9b 7022037: Pause when exiting if debugger is attached on windows
sla
parents: 8335
diff changeset
  3596
          "Pause and wait for keypress on exit if a debugger is attached")  \
7e34c2d4cf9b 7022037: Pause when exiting if debugger is attached on windows
sla
parents: 8335
diff changeset
  3597
                                                                            \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3598
  product(bool, ExtendedDTraceProbes,    false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3599
          "Enable performance-impacting dtrace probes")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3600
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3601
  product(bool, DTraceMethodProbes, false,                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3602
          "Enable dtrace probes for method-entry and method-exit")          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3603
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3604
  product(bool, DTraceAllocProbes, false,                                   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3605
          "Enable dtrace probes for object allocation")                     \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3606
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3607
  product(bool, DTraceMonitorProbes, false,                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3608
          "Enable dtrace probes for monitor events")                        \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3609
                                                                            \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3610
  product(bool, RelaxAccessControlCheck, false,                             \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3611
          "Relax the access control checks in the verifier")                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3612
                                                                            \
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 360
diff changeset
  3613
  diagnostic(bool, PrintDTraceDOF, false,                                   \
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 360
diff changeset
  3614
             "Print the DTrace DOF passed to the system for JSDT probes")   \
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 360
diff changeset
  3615
                                                                            \
14487
9a40ad461ee9 7122219: Passed StringTableSize value not verified
hseigel
parents: 14386
diff changeset
  3616
  product(uintx, StringTableSize, defaultStringTableSize,                   \
8727
1642a45f024f 6962930: make the string table size configurable
jcoomes
parents: 8725
diff changeset
  3617
          "Number of buckets in the interned String table")                 \
1642a45f024f 6962930: make the string table size configurable
jcoomes
parents: 8725
diff changeset
  3618
                                                                            \
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3619
  develop(bool, TraceDefaultMethods, false,                                 \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3620
          "Trace the default method processing steps")                      \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3621
                                                                            \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3622
  develop(bool, ParseAllGenericSignatures, false,                           \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3623
          "Parse all generic signatures while classloading")                \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3624
                                                                            \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3625
  develop(bool, VerifyGenericSignatures, false,                             \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3626
          "Abort VM on erroneous or inconsistent generic signatures")       \
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 14284
diff changeset
  3627
                                                                            \
1602
6859fd21ba2b 6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents: 1562
diff changeset
  3628
  product(bool, UseVMInterruptibleIO, false,                                \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3629
          "(Unstable, Solaris-specific) Thread interrupt before or with "   \
1602
6859fd21ba2b 6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents: 1562
diff changeset
  3630
          "EINTR for I/O operations results in OS_INTRPT. The default value"\
12095
cc3d6f08a4c4 7148152: Add whitebox testing API to HotSpot
mgerdin
parents: 11789
diff changeset
  3631
          " of this flag is true for JDK 6 and earlier")                    \
cc3d6f08a4c4 7148152: Add whitebox testing API to HotSpot
mgerdin
parents: 11789
diff changeset
  3632
                                                                            \
cc3d6f08a4c4 7148152: Add whitebox testing API to HotSpot
mgerdin
parents: 11789
diff changeset
  3633
  diagnostic(bool, WhiteBoxAPI, false,                                      \
12630
ddf6ee008138 7166894: Add gc cause to GC logging for all collectors
brutisso
parents: 12263
diff changeset
  3634
          "Enable internal testing APIs")                                   \
ddf6ee008138 7166894: Add gc cause to GC logging for all collectors
brutisso
parents: 12263
diff changeset
  3635
                                                                            \
ddf6ee008138 7166894: Add gc cause to GC logging for all collectors
brutisso
parents: 12263
diff changeset
  3636
  product(bool, PrintGCCause, true,                                         \
ddf6ee008138 7166894: Add gc cause to GC logging for all collectors
brutisso
parents: 12263
diff changeset
  3637
          "Include GC cause in GC logging")
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3638
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3639
/*
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3640
 *  Macros for factoring of globals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3641
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3642
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3643
// Interface macros
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3644
#define DECLARE_PRODUCT_FLAG(type, name, value, doc)    extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3645
#define DECLARE_PD_PRODUCT_FLAG(type, name, doc)        extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3646
#define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
1382
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
  3647
#define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3648
#define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3649
#define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3650
#ifdef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3651
#define DECLARE_DEVELOPER_FLAG(type, name, value, doc)  const type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3652
#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc)      const type name = pd_##name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3653
#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3654
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3655
#define DECLARE_DEVELOPER_FLAG(type, name, value, doc)  extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3656
#define DECLARE_PD_DEVELOPER_FLAG(type, name, doc)      extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3657
#define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc)  extern "C" type name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3658
#endif
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3659
// Special LP64 flags, product only needed for now.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3660
#ifdef _LP64
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3661
#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3662
#else
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3663
#define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3664
#endif // _LP64
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3665
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3666
// Implementation macros
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3667
#define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc)   type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3668
#define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc)       type name = pd_##name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3669
#define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
1382
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
  3670
#define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3671
#define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3672
#define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3673
#ifdef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3674
#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3675
#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc)     /* flag name is constant */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3676
#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3677
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3678
#define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3679
#define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc)     type name = pd_##name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3680
#define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3681
#endif
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3682
#ifdef _LP64
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3683
#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc)   type name = value;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3684
#else
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3685
#define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 356
diff changeset
  3686
#endif // _LP64
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3687
1382
fa3de4068282 6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents: 1380
diff changeset
  3688
RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3689
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3690
RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6987
diff changeset
  3691
13521
97a23be06f4e 6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents: 13479
diff changeset
  3692
ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG)
97a23be06f4e 6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents: 13479
diff changeset
  3693
11183
a81bb5c041d3 7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents: 11167
diff changeset
  3694
// Extensions
a81bb5c041d3 7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents: 11167
diff changeset
  3695
a81bb5c041d3 7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
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#include "runtime/globals_ext.hpp"
a81bb5c041d3 7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
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7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
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  3698
#endif // SHARE_VM_RUNTIME_GLOBALS_HPP