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comparison src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp @ 1833:8b10f48633dc

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6984287: Regularize how GC parallel workers are specified. Summary: Associate number of GC workers with the workgang as opposed to the task. Reviewed-by: johnc, ysr
author jmasa
date Mon, 20 Sep 2010 14:38:38 -0700
parents c18cbe5936b8
children f95d63e2154a
comparison
equal deleted inserted replaced
1781:97fbf5beff7b 1833:8b10f48633dc
1 /* 1 /*
2 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
37 initialize_perm_generation(PermGen::ConcurrentMarkSweep); 37 initialize_perm_generation(PermGen::ConcurrentMarkSweep);
38 _generations = new GenerationSpecPtr[number_of_generations()]; 38 _generations = new GenerationSpecPtr[number_of_generations()];
39 if (_generations == NULL) 39 if (_generations == NULL)
40 vm_exit_during_initialization("Unable to allocate gen spec"); 40 vm_exit_during_initialization("Unable to allocate gen spec");
41 41
42 if (UseParNewGC && ParallelGCThreads > 0) { 42 if (ParNewGeneration::in_use()) {
43 if (UseAdaptiveSizePolicy) { 43 if (UseAdaptiveSizePolicy) {
44 _generations[0] = new GenerationSpec(Generation::ASParNew, 44 _generations[0] = new GenerationSpec(Generation::ASParNew,
45 _initial_gen0_size, _max_gen0_size); 45 _initial_gen0_size, _max_gen0_size);
46 } else { 46 } else {
47 _generations[0] = new GenerationSpec(Generation::ParNew, 47 _generations[0] = new GenerationSpec(Generation::ParNew,
77 GCTimeRatio); 77 GCTimeRatio);
78 } 78 }
79 79
80 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { 80 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
81 // initialize the policy counters - 2 collectors, 3 generations 81 // initialize the policy counters - 2 collectors, 3 generations
82 if (UseParNewGC && ParallelGCThreads > 0) { 82 if (ParNewGeneration::in_use()) {
83 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3); 83 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
84 } 84 }
85 else { 85 else {
86 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3); 86 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);
87 } 87 }
100 100
101 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { 101 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
102 102
103 assert(size_policy() != NULL, "A size policy is required"); 103 assert(size_policy() != NULL, "A size policy is required");
104 // initialize the policy counters - 2 collectors, 3 generations 104 // initialize the policy counters - 2 collectors, 3 generations
105 if (UseParNewGC && ParallelGCThreads > 0) { 105 if (ParNewGeneration::in_use()) {
106 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3, 106 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,
107 size_policy()); 107 size_policy());
108 } 108 }
109 else { 109 else {
110 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3, 110 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,