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/*
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* Copyright (c) 2007 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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# include "incls/_precompiled.incl"
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# include "incls/_cmsCollectorPolicy.cpp.incl"
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//
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// ConcurrentMarkSweepPolicy methods
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//
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ConcurrentMarkSweepPolicy::ConcurrentMarkSweepPolicy() {
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initialize_all();
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}
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void ConcurrentMarkSweepPolicy::initialize_generations() {
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initialize_perm_generation(PermGen::ConcurrentMarkSweep);
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_generations = new GenerationSpecPtr[number_of_generations()];
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if (_generations == NULL)
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vm_exit_during_initialization("Unable to allocate gen spec");
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if (UseParNewGC && ParallelGCThreads > 0) {
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if (UseAdaptiveSizePolicy) {
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_generations[0] = new GenerationSpec(Generation::ASParNew,
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_initial_gen0_size, _max_gen0_size);
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} else {
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_generations[0] = new GenerationSpec(Generation::ParNew,
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_initial_gen0_size, _max_gen0_size);
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}
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} else {
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_generations[0] = new GenerationSpec(Generation::DefNew,
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_initial_gen0_size, _max_gen0_size);
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}
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if (UseAdaptiveSizePolicy) {
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_generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep,
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_initial_gen1_size, _max_gen1_size);
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} else {
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_generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep,
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_initial_gen1_size, _max_gen1_size);
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}
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if (_generations[0] == NULL || _generations[1] == NULL) {
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vm_exit_during_initialization("Unable to allocate gen spec");
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}
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}
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void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,
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size_t init_promo_size,
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size_t init_survivor_size) {
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double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0;
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double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
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_size_policy = new CMSAdaptiveSizePolicy(init_eden_size,
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init_promo_size,
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init_survivor_size,
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max_gc_minor_pause_sec,
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max_gc_pause_sec,
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GCTimeRatio);
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}
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void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
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// initialize the policy counters - 2 collectors, 3 generations
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if (UseParNewGC && ParallelGCThreads > 0) {
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_gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
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}
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else {
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_gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);
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}
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}
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// Returns true if the incremental mode is enabled.
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bool ConcurrentMarkSweepPolicy::has_soft_ended_eden()
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{
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return CMSIncrementalMode;
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}
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//
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// ASConcurrentMarkSweepPolicy methods
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//
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void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
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assert(size_policy() != NULL, "A size policy is required");
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// initialize the policy counters - 2 collectors, 3 generations
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if (UseParNewGC && ParallelGCThreads > 0) {
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_gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,
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size_policy());
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}
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else {
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_gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,
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size_policy());
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}
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}
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