0N/A/*
1879N/A * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1472N/A * or visit www.oracle.com if you need additional information or have any
1472N/A * questions.
0N/A *
0N/A */
0N/A
1879N/A#ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
1879N/A#define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP
1879N/A
1879N/A#include "memory/collectorPolicy.hpp"
1879N/A
0N/A// There is a nice batch of tested generation sizing code in
0N/A// TwoGenerationCollectorPolicy. Lets reuse it!
0N/A
0N/Aclass GenerationSizer : public TwoGenerationCollectorPolicy {
0N/A public:
0N/A GenerationSizer() {
0N/A // Partial init only!
0N/A initialize_flags();
0N/A initialize_size_info();
0N/A }
0N/A
0N/A void initialize_flags() {
0N/A // Do basic sizing work
0N/A this->TwoGenerationCollectorPolicy::initialize_flags();
0N/A
0N/A // If the user hasn't explicitly set the number of worker
0N/A // threads, set the count.
10N/A assert(UseSerialGC ||
10N/A !FLAG_IS_DEFAULT(ParallelGCThreads) ||
10N/A (ParallelGCThreads > 0),
10N/A "ParallelGCThreads should be set before flag initialization");
0N/A
0N/A // The survivor ratio's are calculated "raw", unlike the
0N/A // default gc, which adds 2 to the ratio value. We need to
0N/A // make sure the values are valid before using them.
0N/A if (MinSurvivorRatio < 3) {
0N/A MinSurvivorRatio = 3;
0N/A }
0N/A
0N/A if (InitialSurvivorRatio < 3) {
0N/A InitialSurvivorRatio = 3;
0N/A }
0N/A }
0N/A
0N/A size_t min_young_gen_size() { return _min_gen0_size; }
0N/A size_t young_gen_size() { return _initial_gen0_size; }
0N/A size_t max_young_gen_size() { return _max_gen0_size; }
0N/A
0N/A size_t min_old_gen_size() { return _min_gen1_size; }
0N/A size_t old_gen_size() { return _initial_gen1_size; }
0N/A size_t max_old_gen_size() { return _max_gen1_size; }
0N/A
0N/A size_t perm_gen_size() { return PermSize; }
0N/A size_t max_perm_gen_size() { return MaxPermSize; }
0N/A};
1879N/A
1879N/A#endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GENERATIONSIZER_HPP