Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp @ 13037:c8fc12209830
8027616: Off by one error in putback for compressed oops nashorn performance improvement
Summary: Should compare bounds greater than or equal 4G when deciding if shift is needed or CDS area + compressed class space are within 4G of each other.
Reviewed-by: stefank, hseigel, zgu
author | coleenp |
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date | Thu, 31 Oct 2013 14:11:02 -0400 |
parents | f9be75d21404 |
children | 8f07aa079343 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved. |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp" | |
27 #include "gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp" | |
28 #include "gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp" | |
29 #include "gc_implementation/parNew/parNewGeneration.hpp" | |
30 #include "gc_implementation/shared/gcPolicyCounters.hpp" | |
31 #include "gc_implementation/shared/vmGCOperations.hpp" | |
32 #include "memory/cardTableRS.hpp" | |
33 #include "memory/collectorPolicy.hpp" | |
34 #include "memory/gcLocker.inline.hpp" | |
35 #include "memory/genCollectedHeap.hpp" | |
36 #include "memory/generationSpec.hpp" | |
37 #include "memory/space.hpp" | |
38 #include "memory/universe.hpp" | |
39 #include "runtime/arguments.hpp" | |
40 #include "runtime/globals_extension.hpp" | |
41 #include "runtime/handles.inline.hpp" | |
42 #include "runtime/java.hpp" | |
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43 #include "runtime/thread.inline.hpp" |
1972 | 44 #include "runtime/vmThread.hpp" |
0 | 45 |
46 // | |
47 // ConcurrentMarkSweepPolicy methods | |
48 // | |
49 | |
50 ConcurrentMarkSweepPolicy::ConcurrentMarkSweepPolicy() { | |
51 initialize_all(); | |
52 } | |
53 | |
54 void ConcurrentMarkSweepPolicy::initialize_generations() { | |
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55 _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, 0, AllocFailStrategy::RETURN_NULL); |
0 | 56 if (_generations == NULL) |
57 vm_exit_during_initialization("Unable to allocate gen spec"); | |
58 | |
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59 if (UseParNewGC) { |
0 | 60 if (UseAdaptiveSizePolicy) { |
61 _generations[0] = new GenerationSpec(Generation::ASParNew, | |
62 _initial_gen0_size, _max_gen0_size); | |
63 } else { | |
64 _generations[0] = new GenerationSpec(Generation::ParNew, | |
65 _initial_gen0_size, _max_gen0_size); | |
66 } | |
67 } else { | |
68 _generations[0] = new GenerationSpec(Generation::DefNew, | |
69 _initial_gen0_size, _max_gen0_size); | |
70 } | |
71 if (UseAdaptiveSizePolicy) { | |
72 _generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep, | |
73 _initial_gen1_size, _max_gen1_size); | |
74 } else { | |
75 _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep, | |
76 _initial_gen1_size, _max_gen1_size); | |
77 } | |
78 | |
79 if (_generations[0] == NULL || _generations[1] == NULL) { | |
80 vm_exit_during_initialization("Unable to allocate gen spec"); | |
81 } | |
82 } | |
83 | |
84 void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size, | |
85 size_t init_promo_size, | |
86 size_t init_survivor_size) { | |
87 double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0; | |
88 double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0; | |
89 _size_policy = new CMSAdaptiveSizePolicy(init_eden_size, | |
90 init_promo_size, | |
91 init_survivor_size, | |
92 max_gc_minor_pause_sec, | |
93 max_gc_pause_sec, | |
94 GCTimeRatio); | |
95 } | |
96 | |
97 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { | |
98 // initialize the policy counters - 2 collectors, 3 generations | |
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99 if (UseParNewGC) { |
0 | 100 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3); |
101 } | |
102 else { | |
103 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3); | |
104 } | |
105 } | |
106 | |
107 // Returns true if the incremental mode is enabled. | |
108 bool ConcurrentMarkSweepPolicy::has_soft_ended_eden() | |
109 { | |
110 return CMSIncrementalMode; | |
111 } | |
112 | |
113 | |
114 // | |
115 // ASConcurrentMarkSweepPolicy methods | |
116 // | |
117 | |
118 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { | |
119 | |
120 assert(size_policy() != NULL, "A size policy is required"); | |
121 // initialize the policy counters - 2 collectors, 3 generations | |
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122 if (UseParNewGC) { |
0 | 123 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3, |
124 size_policy()); | |
125 } | |
126 else { | |
127 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3, | |
128 size_policy()); | |
129 } | |
130 } |