Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp @ 17844:8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
Reviewed-by: tschatzl, jwilhelm
| author | vkempik |
|---|---|
| date | Thu, 03 Apr 2014 17:49:31 +0400 |
| parents | 1de8e5356754 |
| children | 52b4284cb496 570cb6369f17 |
| rev | line source |
|---|---|
| 342 | 1 /* |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. |
| 342 | 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 | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1282
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1282
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1282
diff
changeset
|
21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "gc_implementation/g1/concurrentG1Refine.hpp" | |
| 27 #include "gc_implementation/g1/concurrentG1RefineThread.hpp" | |
| 28 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
29 #include "gc_implementation/g1/g1HotCardCache.hpp" |
|
13437
1de8e5356754
8029326: G1 does not check if threads gets created
ehelin
parents:
10372
diff
changeset
|
30 #include "runtime/java.hpp" |
|
2431
02f49b66361a
7026932: G1: No need to abort VM when card count cache expansion fails
johnc
parents:
2364
diff
changeset
|
31 |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h) : |
|
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
33 _threads(NULL), _n_threads(0), |
|
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
34 _hot_card_cache(g1h) |
| 342 | 35 { |
| 1111 | 36 // Ergomonically select initial concurrent refinement parameters |
| 1282 | 37 if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) { |
| 38 FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, MAX2<int>(ParallelGCThreads, 1)); | |
| 1111 | 39 } |
| 1282 | 40 set_green_zone(G1ConcRefinementGreenZone); |
| 1111 | 41 |
| 1282 | 42 if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) { |
| 43 FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3); | |
| 1111 | 44 } |
| 1282 | 45 set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone())); |
| 1111 | 46 |
| 1282 | 47 if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) { |
| 48 FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2); | |
| 1111 | 49 } |
| 1282 | 50 set_red_zone(MAX2<int>(G1ConcRefinementRedZone, yellow_zone())); |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
51 |
| 1111 | 52 _n_worker_threads = thread_num(); |
| 53 // We need one extra thread to do the young gen rset size sampling. | |
| 54 _n_threads = _n_worker_threads + 1; | |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
55 |
| 1111 | 56 reset_threshold_step(); |
| 57 | |
| 6197 | 58 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads, mtGC); |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
59 |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
60 uint worker_id_offset = DirtyCardQueueSet::num_par_ids(); |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
61 |
| 1111 | 62 ConcurrentG1RefineThread *next = NULL; |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
63 for (uint i = _n_threads - 1; i != UINT_MAX; i--) { |
| 1111 | 64 ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, worker_id_offset, i); |
| 65 assert(t != NULL, "Conc refine should have been created"); | |
|
13437
1de8e5356754
8029326: G1 does not check if threads gets created
ehelin
parents:
10372
diff
changeset
|
66 if (t->osthread() == NULL) { |
|
1de8e5356754
8029326: G1 does not check if threads gets created
ehelin
parents:
10372
diff
changeset
|
67 vm_shutdown_during_initialization("Could not create ConcurrentG1RefineThread"); |
|
1de8e5356754
8029326: G1 does not check if threads gets created
ehelin
parents:
10372
diff
changeset
|
68 } |
|
1de8e5356754
8029326: G1 does not check if threads gets created
ehelin
parents:
10372
diff
changeset
|
69 |
| 1111 | 70 assert(t->cg1r() == this, "Conc refine thread should refer to this"); |
| 71 _threads[i] = t; | |
| 72 next = t; | |
| 342 | 73 } |
| 74 } | |
| 75 | |
| 1111 | 76 void ConcurrentG1Refine::reset_threshold_step() { |
| 1282 | 77 if (FLAG_IS_DEFAULT(G1ConcRefinementThresholdStep)) { |
| 1111 | 78 _thread_threshold_step = (yellow_zone() - green_zone()) / (worker_thread_num() + 1); |
| 79 } else { | |
| 1282 | 80 _thread_threshold_step = G1ConcRefinementThresholdStep; |
|
795
215f81b4d9b3
6841831: G1: assert(contains_reference(from),"We just added it!") fires
iveresov
parents:
794
diff
changeset
|
81 } |
| 1111 | 82 } |
| 83 | |
| 342 | 84 void ConcurrentG1Refine::init() { |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
85 _hot_card_cache.initialize(); |
| 342 | 86 } |
| 87 | |
| 794 | 88 void ConcurrentG1Refine::stop() { |
| 89 if (_threads != NULL) { | |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
90 for (uint i = 0; i < _n_threads; i++) { |
| 794 | 91 _threads[i]->stop(); |
| 92 } | |
| 93 } | |
| 94 } | |
| 95 | |
| 1111 | 96 void ConcurrentG1Refine::reinitialize_threads() { |
| 97 reset_threshold_step(); | |
| 98 if (_threads != NULL) { | |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
99 for (uint i = 0; i < _n_threads; i++) { |
| 1111 | 100 _threads[i]->initialize(); |
| 101 } | |
| 102 } | |
| 103 } | |
| 104 | |
| 342 | 105 ConcurrentG1Refine::~ConcurrentG1Refine() { |
| 794 | 106 if (_threads != NULL) { |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
107 for (uint i = 0; i < _n_threads; i++) { |
| 794 | 108 delete _threads[i]; |
| 109 } | |
| 6197 | 110 FREE_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _threads, mtGC); |
| 342 | 111 } |
| 112 } | |
| 113 | |
| 794 | 114 void ConcurrentG1Refine::threads_do(ThreadClosure *tc) { |
| 115 if (_threads != NULL) { | |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
116 for (uint i = 0; i < _n_threads; i++) { |
| 794 | 117 tc->do_thread(_threads[i]); |
| 118 } | |
| 342 | 119 } |
| 120 } | |
| 121 | |
|
10372
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
122 void ConcurrentG1Refine::worker_threads_do(ThreadClosure * tc) { |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
123 if (_threads != NULL) { |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
124 for (uint i = 0; i < worker_thread_num(); i++) { |
|
10372
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
125 tc->do_thread(_threads[i]); |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
126 } |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
127 } |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
128 } |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
129 |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
130 uint ConcurrentG1Refine::thread_num() { |
|
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
131 uint n_threads = (G1ConcRefinementThreads > 0) ? G1ConcRefinementThreads |
|
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
6220
diff
changeset
|
132 : ParallelGCThreads; |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
133 return MAX2<uint>(n_threads, 1); |
| 342 | 134 } |
| 1019 | 135 |
| 136 void ConcurrentG1Refine::print_worker_threads_on(outputStream* st) const { | |
|
17844
8847586c9037
8016302: Change type of the number of GC workers to unsigned int (2)
vkempik
parents:
13437
diff
changeset
|
137 for (uint i = 0; i < _n_threads; ++i) { |
| 1019 | 138 _threads[i]->print_on(st); |
| 139 st->cr(); | |
| 140 } | |
| 141 } | |
|
10372
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
142 |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
143 ConcurrentG1RefineThread * ConcurrentG1Refine::sampling_thread() const { |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
144 return _threads[worker_thread_num()]; |
|
e72f7eecc96d
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
tschatzl
parents:
10246
diff
changeset
|
145 } |