Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/g1RemSetSummary.cpp @ 12116:1624a68007bd
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author | jmasa |
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date | Tue, 27 Aug 2013 18:55:33 -0700 |
parents | 5888334c9c24 |
children | c319b188c7b2 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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. |
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22 * |
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23 */ |
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24 |
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25 #include "precompiled.hpp" |
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26 #include "gc_implementation/g1/concurrentG1Refine.hpp" |
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27 #include "gc_implementation/g1/concurrentG1RefineThread.hpp" |
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28 #include "gc_implementation/g1/heapRegion.hpp" |
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29 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
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30 #include "gc_implementation/g1/g1RemSet.inline.hpp" |
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31 #include "gc_implementation/g1/g1RemSetSummary.hpp" |
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32 #include "gc_implementation/g1/heapRegionRemSet.hpp" |
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33 #include "runtime/thread.inline.hpp" |
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34 |
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35 class GetRSThreadVTimeClosure : public ThreadClosure { |
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36 private: |
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37 G1RemSetSummary* _summary; |
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38 uint _counter; |
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39 |
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40 public: |
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41 GetRSThreadVTimeClosure(G1RemSetSummary * summary) : ThreadClosure(), _summary(summary), _counter(0) { |
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42 assert(_summary != NULL, "just checking"); |
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43 } |
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44 |
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45 virtual void do_thread(Thread* t) { |
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46 ConcurrentG1RefineThread* crt = (ConcurrentG1RefineThread*) t; |
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47 _summary->set_rs_thread_vtime(_counter, crt->vtime_accum()); |
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48 _counter++; |
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49 } |
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50 }; |
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51 |
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52 void G1RemSetSummary::update() { |
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53 _num_refined_cards = remset()->conc_refine_cards(); |
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54 DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set(); |
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55 _num_processed_buf_mutator = dcqs.processed_buffers_mut(); |
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56 _num_processed_buf_rs_threads = dcqs.processed_buffers_rs_thread(); |
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57 |
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58 _num_coarsenings = HeapRegionRemSet::n_coarsenings(); |
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59 |
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60 ConcurrentG1Refine * cg1r = G1CollectedHeap::heap()->concurrent_g1_refine(); |
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61 if (_rs_threads_vtimes != NULL) { |
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62 GetRSThreadVTimeClosure p(this); |
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63 cg1r->worker_threads_do(&p); |
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64 } |
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65 set_sampling_thread_vtime(cg1r->sampling_thread()->vtime_accum()); |
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66 } |
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67 |
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68 void G1RemSetSummary::set_rs_thread_vtime(uint thread, double value) { |
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69 assert(_rs_threads_vtimes != NULL, "just checking"); |
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70 assert(thread < _num_vtimes, "just checking"); |
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71 _rs_threads_vtimes[thread] = value; |
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72 } |
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73 |
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74 double G1RemSetSummary::rs_thread_vtime(uint thread) const { |
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75 assert(_rs_threads_vtimes != NULL, "just checking"); |
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76 assert(thread < _num_vtimes, "just checking"); |
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77 return _rs_threads_vtimes[thread]; |
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78 } |
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79 |
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80 void G1RemSetSummary::initialize(G1RemSet* remset, uint num_workers) { |
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81 assert(_rs_threads_vtimes == NULL, "just checking"); |
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82 assert(remset != NULL, "just checking"); |
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83 |
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84 _remset = remset; |
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85 _num_vtimes = num_workers; |
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86 _rs_threads_vtimes = NEW_C_HEAP_ARRAY(double, _num_vtimes, mtGC); |
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87 memset(_rs_threads_vtimes, 0, sizeof(double) * _num_vtimes); |
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88 |
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89 update(); |
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90 } |
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91 |
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92 void G1RemSetSummary::set(G1RemSetSummary* other) { |
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93 assert(other != NULL, "just checking"); |
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94 assert(remset() == other->remset(), "just checking"); |
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95 assert(_num_vtimes == other->_num_vtimes, "just checking"); |
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96 |
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97 _num_refined_cards = other->num_concurrent_refined_cards(); |
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98 |
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99 _num_processed_buf_mutator = other->num_processed_buf_mutator(); |
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100 _num_processed_buf_rs_threads = other->num_processed_buf_rs_threads(); |
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101 |
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102 _num_coarsenings = other->_num_coarsenings; |
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103 |
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104 memcpy(_rs_threads_vtimes, other->_rs_threads_vtimes, sizeof(double) * _num_vtimes); |
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105 |
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106 set_sampling_thread_vtime(other->sampling_thread_vtime()); |
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107 } |
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108 |
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109 void G1RemSetSummary::subtract_from(G1RemSetSummary* other) { |
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110 assert(other != NULL, "just checking"); |
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111 assert(remset() == other->remset(), "just checking"); |
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112 assert(_num_vtimes == other->_num_vtimes, "just checking"); |
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113 |
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114 _num_refined_cards = other->num_concurrent_refined_cards() - _num_refined_cards; |
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115 |
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116 _num_processed_buf_mutator = other->num_processed_buf_mutator() - _num_processed_buf_mutator; |
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117 _num_processed_buf_rs_threads = other->num_processed_buf_rs_threads() - _num_processed_buf_rs_threads; |
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118 |
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119 _num_coarsenings = other->num_coarsenings() - _num_coarsenings; |
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120 |
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121 for (uint i = 0; i < _num_vtimes; i++) { |
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122 set_rs_thread_vtime(i, other->rs_thread_vtime(i) - rs_thread_vtime(i)); |
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123 } |
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124 |
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125 _sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime; |
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126 } |
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127 |
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128 class HRRSStatsIter: public HeapRegionClosure { |
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129 size_t _occupied; |
12080 | 130 |
131 size_t _total_rs_mem_sz; | |
132 size_t _max_rs_mem_sz; | |
133 HeapRegion* _max_rs_mem_sz_region; | |
134 | |
135 size_t _total_code_root_mem_sz; | |
136 size_t _max_code_root_mem_sz; | |
137 HeapRegion* _max_code_root_mem_sz_region; | |
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138 public: |
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139 HRRSStatsIter() : |
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140 _occupied(0), |
12080 | 141 _total_rs_mem_sz(0), |
142 _max_rs_mem_sz(0), | |
143 _max_rs_mem_sz_region(NULL), | |
144 _total_code_root_mem_sz(0), | |
145 _max_code_root_mem_sz(0), | |
146 _max_code_root_mem_sz_region(NULL) | |
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147 {} |
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148 |
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149 bool doHeapRegion(HeapRegion* r) { |
12080 | 150 HeapRegionRemSet* hrrs = r->rem_set(); |
151 | |
152 // HeapRegionRemSet::mem_size() includes the | |
153 // size of the strong code roots | |
154 size_t rs_mem_sz = hrrs->mem_size(); | |
155 if (rs_mem_sz > _max_rs_mem_sz) { | |
156 _max_rs_mem_sz = rs_mem_sz; | |
157 _max_rs_mem_sz_region = r; | |
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158 } |
12080 | 159 _total_rs_mem_sz += rs_mem_sz; |
160 | |
161 size_t code_root_mem_sz = hrrs->strong_code_roots_mem_size(); | |
162 if (code_root_mem_sz > _max_code_root_mem_sz) { | |
163 _max_code_root_mem_sz = code_root_mem_sz; | |
164 _max_code_root_mem_sz_region = r; | |
165 } | |
166 _total_code_root_mem_sz += code_root_mem_sz; | |
167 | |
168 size_t occ = hrrs->occupied(); | |
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169 _occupied += occ; |
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170 return false; |
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171 } |
12080 | 172 size_t total_rs_mem_sz() { return _total_rs_mem_sz; } |
173 size_t max_rs_mem_sz() { return _max_rs_mem_sz; } | |
174 HeapRegion* max_rs_mem_sz_region() { return _max_rs_mem_sz_region; } | |
175 size_t total_code_root_mem_sz() { return _total_code_root_mem_sz; } | |
176 size_t max_code_root_mem_sz() { return _max_code_root_mem_sz; } | |
177 HeapRegion* max_code_root_mem_sz_region() { return _max_code_root_mem_sz_region; } | |
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178 size_t occupied() { return _occupied; } |
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179 }; |
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180 |
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181 double calc_percentage(size_t numerator, size_t denominator) { |
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182 if (denominator != 0) { |
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183 return (double)numerator / denominator * 100.0; |
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184 } else { |
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185 return 0.0f; |
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186 } |
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187 } |
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188 |
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189 void G1RemSetSummary::print_on(outputStream* out) { |
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190 out->print_cr("\n Concurrent RS processed "SIZE_FORMAT" cards", |
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191 num_concurrent_refined_cards()); |
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192 out->print_cr(" Of %d completed buffers:", num_processed_buf_total()); |
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193 out->print_cr(" %8d (%5.1f%%) by concurrent RS threads.", |
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194 num_processed_buf_total(), |
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195 calc_percentage(num_processed_buf_rs_threads(), num_processed_buf_total())); |
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196 out->print_cr(" %8d (%5.1f%%) by mutator threads.", |
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197 num_processed_buf_mutator(), |
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198 calc_percentage(num_processed_buf_mutator(), num_processed_buf_total())); |
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199 out->print_cr(" Concurrent RS threads times (s)"); |
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200 out->print(" "); |
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201 for (uint i = 0; i < _num_vtimes; i++) { |
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202 out->print(" %5.2f", rs_thread_vtime(i)); |
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203 } |
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204 out->cr(); |
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205 out->print_cr(" Concurrent sampling threads times (s)"); |
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206 out->print_cr(" %5.2f", sampling_thread_vtime()); |
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207 |
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208 HRRSStatsIter blk; |
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209 G1CollectedHeap::heap()->heap_region_iterate(&blk); |
12080 | 210 // RemSet stats |
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211 out->print_cr(" Total heap region rem set sizes = "SIZE_FORMAT"K." |
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212 " Max = "SIZE_FORMAT"K.", |
12080 | 213 blk.total_rs_mem_sz()/K, blk.max_rs_mem_sz()/K); |
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214 out->print_cr(" Static structures = "SIZE_FORMAT"K," |
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215 " free_lists = "SIZE_FORMAT"K.", |
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216 HeapRegionRemSet::static_mem_size() / K, |
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217 HeapRegionRemSet::fl_mem_size() / K); |
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218 out->print_cr(" "SIZE_FORMAT" occupied cards represented.", |
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219 blk.occupied()); |
12080 | 220 HeapRegion* max_rs_mem_sz_region = blk.max_rs_mem_sz_region(); |
221 HeapRegionRemSet* max_rs_rem_set = max_rs_mem_sz_region->rem_set(); | |
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222 out->print_cr(" Max size region = "HR_FORMAT", " |
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223 "size = "SIZE_FORMAT "K, occupied = "SIZE_FORMAT"K.", |
12080 | 224 HR_FORMAT_PARAMS(max_rs_mem_sz_region), |
225 (max_rs_rem_set->mem_size() + K - 1)/K, | |
226 (max_rs_rem_set->occupied() + K - 1)/K); | |
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227 out->print_cr(" Did %d coarsenings.", num_coarsenings()); |
12080 | 228 // Strong code root stats |
229 out->print_cr(" Total heap region code-root set sizes = "SIZE_FORMAT"K." | |
230 " Max = "SIZE_FORMAT"K.", | |
231 blk.total_code_root_mem_sz()/K, blk.max_code_root_mem_sz()/K); | |
232 HeapRegion* max_code_root_mem_sz_region = blk.max_code_root_mem_sz_region(); | |
233 HeapRegionRemSet* max_code_root_rem_set = max_code_root_mem_sz_region->rem_set(); | |
234 out->print_cr(" Max size region = "HR_FORMAT", " | |
235 "size = "SIZE_FORMAT "K, num_elems = "SIZE_FORMAT".", | |
236 HR_FORMAT_PARAMS(max_code_root_mem_sz_region), | |
237 (max_code_root_rem_set->strong_code_roots_mem_size() + K - 1)/K, | |
238 (max_code_root_rem_set->strong_code_roots_list_length())); | |
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239 } |