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annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp @ 20256:b0b97602393a
8033923: Use BufferingOopClosure for G1 code root scanning
Reviewed-by: mgerdin, brutisso
author | stefank |
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date | Mon, 10 Feb 2014 12:58:09 +0100 |
parents | 8f07aa079343 |
children | 833b0f92429a |
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. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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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 | |
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50 void ConcurrentMarkSweepPolicy::initialize_alignments() { |
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51 _space_alignment = _gen_alignment = (uintx)Generation::GenGrain; |
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52 _heap_alignment = compute_heap_alignment(); |
0 | 53 } |
54 | |
55 void ConcurrentMarkSweepPolicy::initialize_generations() { | |
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56 _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC, 0, AllocFailStrategy::RETURN_NULL); |
0 | 57 if (_generations == NULL) |
58 vm_exit_during_initialization("Unable to allocate gen spec"); | |
59 | |
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60 if (UseParNewGC) { |
0 | 61 if (UseAdaptiveSizePolicy) { |
62 _generations[0] = new GenerationSpec(Generation::ASParNew, | |
63 _initial_gen0_size, _max_gen0_size); | |
64 } else { | |
65 _generations[0] = new GenerationSpec(Generation::ParNew, | |
66 _initial_gen0_size, _max_gen0_size); | |
67 } | |
68 } else { | |
69 _generations[0] = new GenerationSpec(Generation::DefNew, | |
70 _initial_gen0_size, _max_gen0_size); | |
71 } | |
72 if (UseAdaptiveSizePolicy) { | |
73 _generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep, | |
74 _initial_gen1_size, _max_gen1_size); | |
75 } else { | |
76 _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep, | |
77 _initial_gen1_size, _max_gen1_size); | |
78 } | |
79 | |
80 if (_generations[0] == NULL || _generations[1] == NULL) { | |
81 vm_exit_during_initialization("Unable to allocate gen spec"); | |
82 } | |
83 } | |
84 | |
85 void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size, | |
86 size_t init_promo_size, | |
87 size_t init_survivor_size) { | |
88 double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0; | |
89 double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0; | |
90 _size_policy = new CMSAdaptiveSizePolicy(init_eden_size, | |
91 init_promo_size, | |
92 init_survivor_size, | |
93 max_gc_minor_pause_sec, | |
94 max_gc_pause_sec, | |
95 GCTimeRatio); | |
96 } | |
97 | |
98 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { | |
99 // initialize the policy counters - 2 collectors, 3 generations | |
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100 if (UseParNewGC) { |
0 | 101 _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3); |
102 } | |
103 else { | |
104 _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3); | |
105 } | |
106 } | |
107 | |
108 // Returns true if the incremental mode is enabled. | |
109 bool ConcurrentMarkSweepPolicy::has_soft_ended_eden() | |
110 { | |
111 return CMSIncrementalMode; | |
112 } | |
113 | |
114 | |
115 // | |
116 // ASConcurrentMarkSweepPolicy methods | |
117 // | |
118 | |
119 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() { | |
120 | |
121 assert(size_policy() != NULL, "A size policy is required"); | |
122 // initialize the policy counters - 2 collectors, 3 generations | |
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123 if (UseParNewGC) { |
0 | 124 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3, |
125 size_policy()); | |
126 } | |
127 else { | |
128 _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3, | |
129 size_policy()); | |
130 } | |
131 } |