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comparison src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp @ 7451:ca0a78017dc7

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8005396: Use ParNew with only one thread instead of DefNew as default for CMS on single CPU machines Reviewed-by: jmasa, jcoomes
author brutisso
date Sun, 30 Dec 2012 08:47:52 +0100
parents f34d701e952e
children 6f817ce50129
comparison
equal deleted inserted replaced
7450:d275c3dc73e6 7451:ca0a78017dc7
54 void ConcurrentMarkSweepPolicy::initialize_generations() { 54 void ConcurrentMarkSweepPolicy::initialize_generations() {
55 _generations = new GenerationSpecPtr[number_of_generations()]; 55 _generations = new GenerationSpecPtr[number_of_generations()];
56 if (_generations == NULL) 56 if (_generations == NULL)
57 vm_exit_during_initialization("Unable to allocate gen spec"); 57 vm_exit_during_initialization("Unable to allocate gen spec");
58 58
59 if (ParNewGeneration::in_use()) { 59 if (UseParNewGC) {
60 if (UseAdaptiveSizePolicy) { 60 if (UseAdaptiveSizePolicy) {
61 _generations[0] = new GenerationSpec(Generation::ASParNew, 61 _generations[0] = new GenerationSpec(Generation::ASParNew,
62 _initial_gen0_size, _max_gen0_size); 62 _initial_gen0_size, _max_gen0_size);
63 } else { 63 } else {
64 _generations[0] = new GenerationSpec(Generation::ParNew, 64 _generations[0] = new GenerationSpec(Generation::ParNew,
94 GCTimeRatio); 94 GCTimeRatio);
95 } 95 }
96 96
97 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { 97 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
98 // initialize the policy counters - 2 collectors, 3 generations 98 // initialize the policy counters - 2 collectors, 3 generations
99 if (ParNewGeneration::in_use()) { 99 if (UseParNewGC) {
100 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3); 100 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
101 } 101 }
102 else { 102 else {
103 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3); 103 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);
104 } 104 }
117 117
118 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { 118 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
119 119
120 assert(size_policy() != NULL, "A size policy is required"); 120 assert(size_policy() != NULL, "A size policy is required");
121 // initialize the policy counters - 2 collectors, 3 generations 121 // initialize the policy counters - 2 collectors, 3 generations
122 if (ParNewGeneration::in_use()) { 122 if (UseParNewGC) {
123 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3, 123 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,
124 size_policy()); 124 size_policy());
125 } 125 }
126 else { 126 else {
127 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3, 127 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,