author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 1 | 489c9b5090e2 |
child 6759 | 67b1a69ef5aa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007, 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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# 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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} |