src/hotspot/share/gc/shared/gcArguments.cpp
author shade
Fri, 13 Apr 2018 10:31:49 +0200
branchepsilon-gc-branch
changeset 56422 b09629f4b243
parent 56028 267a6ce379ba
parent 49629 b786280276dc
child 56448 76d86de267b9
permissions -rw-r--r--
Merge
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/*
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 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
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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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#include "precompiled.hpp"
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#include "gc/shared/gcArguments.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/globals.hpp"
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#include "runtime/globals_extension.hpp"
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#include "utilities/macros.hpp"
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void GCArguments::initialize() {
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#if INCLUDE_ALL_GCS
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  if (MinHeapFreeRatio == 100) {
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    // Keeping the heap 100% free is hard ;-) so limit it to 99%.
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    FLAG_SET_ERGO(uintx, MinHeapFreeRatio, 99);
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  }
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  // If class unloading is disabled, also disable concurrent class unloading.
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  if (!ClassUnloading) {
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    FLAG_SET_CMDLINE(bool, CMSClassUnloadingEnabled, false);
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    FLAG_SET_CMDLINE(bool, ClassUnloadingWithConcurrentMark, false);
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  }
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#endif // INCLUDE_ALL_GCS
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}