Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp @ 20211:82693fb204a5
8038930: G1CodeRootSet::test fails with assert(_num_chunks_handed_out == 0) failed: No elements must have been handed out yet
Summary: The test incorrectly assumed that it had been started with no other previous compilation activity. Fix this by allowing multiple code root free chunk lists, and use one separate from the global one to perform the test.
Reviewed-by: brutisso
| author | tschatzl |
|---|---|
| date | Wed, 16 Apr 2014 10:14:50 +0200 |
| parents | 8847586c9037 |
| children | 52b4284cb496 570cb6369f17 |
| rev | line source |
|---|---|
| 342 | 1 /* |
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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 * | |
|
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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. |
| 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" | |
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29 #include "gc_implementation/g1/g1HotCardCache.hpp" |
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30 #include "runtime/java.hpp" |
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31 |
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32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h) : |
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33 _threads(NULL), _n_threads(0), |
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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())); |
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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; | |
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55 |
| 1111 | 56 reset_threshold_step(); |
| 57 | |
| 6197 | 58 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads, mtGC); |
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59 |
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60 uint worker_id_offset = DirtyCardQueueSet::num_par_ids(); |
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61 |
| 1111 | 62 ConcurrentG1RefineThread *next = NULL; |
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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"); | |
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66 if (t->osthread() == NULL) { |
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67 vm_shutdown_during_initialization("Could not create ConcurrentG1RefineThread"); |
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68 } |
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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; |
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81 } |
| 1111 | 82 } |
| 83 | |
| 342 | 84 void ConcurrentG1Refine::init() { |
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85 _hot_card_cache.initialize(); |
| 342 | 86 } |
| 87 | |
| 794 | 88 void ConcurrentG1Refine::stop() { |
| 89 if (_threads != NULL) { | |
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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) { | |
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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) { |
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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) { | |
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116 for (uint i = 0; i < _n_threads; i++) { |
| 794 | 117 tc->do_thread(_threads[i]); |
| 118 } | |
| 342 | 119 } |
| 120 } | |
| 121 | |
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122 void ConcurrentG1Refine::worker_threads_do(ThreadClosure * tc) { |
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123 if (_threads != NULL) { |
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124 for (uint i = 0; i < worker_thread_num(); i++) { |
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125 tc->do_thread(_threads[i]); |
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126 } |
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127 } |
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128 } |
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129 |
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130 uint ConcurrentG1Refine::thread_num() { |
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131 uint n_threads = (G1ConcRefinementThreads > 0) ? G1ConcRefinementThreads |
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132 : ParallelGCThreads; |
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133 return MAX2<uint>(n_threads, 1); |
| 342 | 134 } |
| 1019 | 135 |
| 136 void ConcurrentG1Refine::print_worker_threads_on(outputStream* st) const { | |
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137 for (uint i = 0; i < _n_threads; ++i) { |
| 1019 | 138 _threads[i]->print_on(st); |
| 139 st->cr(); | |
| 140 } | |
| 141 } | |
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142 |
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143 ConcurrentG1RefineThread * ConcurrentG1Refine::sampling_thread() const { |
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144 return _threads[worker_thread_num()]; |
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145 } |