hotspot/src/cpu/x86/vm/globals_x86.hpp
author phh
Wed, 28 Oct 2009 16:25:51 -0400
changeset 4434 4b41e5b42f81
parent 3261 c7d5aae8d3f7
child 5249 5cac34e6fe54
permissions -rw-r--r--
6887571: Increase default heap config sizes Summary: Apply modification of existing server heap size ergo to all collectors except CMS. Reviewed-by: jmasa, ysr, xlu
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/*
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 * Copyright 2000-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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// Sets the default values for platform dependent flags used by the runtime system.
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// (see globals.hpp)
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define_pd_global(bool, ConvertSleepToYield,      true);
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define_pd_global(bool, ShareVtableStubs,         true);
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define_pd_global(bool, CountInterpCalls,         true);
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define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
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define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
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define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
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// See 4827828 for this change. There is no globals_core_i486.hpp. I can't
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// assign a different value for C2 without touching a number of files. Use
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// #ifdef to minimize the change as it's late in Mantis. -- FIXME.
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// c1 doesn't have this problem because the fix to 4858033 assures us
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// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
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// the uep and the vep doesn't get real alignment but just slops on by
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// only assured that the entry instruction meets the 5 byte size requirement.
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#ifdef COMPILER2
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define_pd_global(intx, CodeEntryAlignment,       32);
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#else
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define_pd_global(intx, CodeEntryAlignment,       16);
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#endif // COMPILER2
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define_pd_global(intx, InlineFrequencyCount,     100);
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define_pd_global(intx, InlineSmallCode,          1000);
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define_pd_global(intx, StackYellowPages, 2);
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define_pd_global(intx, StackRedPages, 1);
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#ifdef AMD64
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// Very large C++ stack frames using solaris-amd64 optimized builds
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// due to lack of optimization caused by C++ compiler bugs
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define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
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#else
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define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
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#endif // AMD64
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define_pd_global(intx, PreInflateSpin,           10);
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define_pd_global(bool, RewriteBytecodes,     true);
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define_pd_global(bool, RewriteFrequentPairs, true);