1 /* 2 * Copyright (c) 2013, 2014 Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP 27 28 #include "memory/allocation.hpp" 29 30 class LineBuffer; 31 32 template <class T> class WorkerDataArray; 33 34 class G1GCPhaseTimes : public CHeapObj<mtGC> { 35 friend class G1GCParPhasePrinter; 36 37 uint _active_gc_threads; 38 uint _max_gc_threads; 39 40 public: 41 enum GCParPhases { 42 GCWorkerStart, 43 ExtRootScan, 44 SATBFiltering, 45 UpdateRS, 46 ScanRS, 47 CodeRoots, 48 ObjCopy, 49 Termination, 50 Other, 51 GCWorkerTotal, 52 GCWorkerEnd, 53 StringDedupQueueFixup, 54 StringDedupTableFixup, 55 RedirtyCards, 56 GCParPhasesSentinel 57 }; 58 59 private: 60 // Markers for grouping the phases in the GCPhases enum above 61 static const int GCMainParPhasesLast = GCWorkerEnd; 62 static const int StringDedupPhasesFirst = StringDedupQueueFixup; 63 static const int StringDedupPhasesLast = StringDedupTableFixup; 64 65 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel]; 66 WorkerDataArray<size_t>* _update_rs_processed_buffers; 67 WorkerDataArray<size_t>* _termination_attempts; 68 WorkerDataArray<size_t>* _redirtied_cards; 69 70 double _cur_collection_par_time_ms; 71 double _cur_collection_code_root_fixup_time_ms; 72 double _cur_strong_code_root_purge_time_ms; 73 74 double _cur_evac_fail_recalc_used; 75 double _cur_evac_fail_restore_remsets; 76 double _cur_evac_fail_remove_self_forwards; 77 78 double _cur_string_dedup_fixup_time_ms; 79 80 double _cur_clear_ct_time_ms; 81 double _cur_ref_proc_time_ms; 82 double _cur_ref_enq_time_ms; 83 84 double _cur_collection_start_sec; 85 double _root_region_scan_wait_time_ms; 86 87 double _recorded_young_cset_choice_time_ms; 88 double _recorded_non_young_cset_choice_time_ms; 89 90 double _recorded_redirty_logged_cards_time_ms; 91 92 double _recorded_young_free_cset_time_ms; 93 double _recorded_non_young_free_cset_time_ms; 94 95 double _cur_fast_reclaim_humongous_time_ms; 96 double _cur_fast_reclaim_humongous_register_time_ms; 97 size_t _cur_fast_reclaim_humongous_total; 98 size_t _cur_fast_reclaim_humongous_candidates; 99 size_t _cur_fast_reclaim_humongous_reclaimed; 100 101 double _cur_verify_before_time_ms; 102 double _cur_verify_after_time_ms; 103 104 // Helper methods for detailed logging 105 void print_stats(int level, const char* str, double value); 106 void print_stats(int level, const char* str, size_t value); 107 void print_stats(int level, const char* str, double value, uint workers); 108 109 public: 110 G1GCPhaseTimes(uint max_gc_threads); 111 void note_gc_start(uint active_gc_threads, bool mark_in_progress); 112 void note_gc_end(); 113 void print(double pause_time_sec); 114 115 // record the time a phase took in seconds 116 void record_time_secs(GCParPhases phase, uint worker_i, double secs); 117 118 // add a number of seconds to a phase 119 void add_time_secs(GCParPhases phase, uint worker_i, double secs); 120 121 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count); 122 123 // return the average time for a phase in milliseconds 124 double average_time_ms(GCParPhases phase); 125 126 size_t sum_thread_work_items(GCParPhases phase); 127 128 private: 129 double get_time_ms(GCParPhases phase, uint worker_i); 130 double sum_time_ms(GCParPhases phase); 131 double min_time_ms(GCParPhases phase); 132 double max_time_ms(GCParPhases phase); 133 size_t get_thread_work_item(GCParPhases phase, uint worker_i); 134 double average_thread_work_items(GCParPhases phase); 135 size_t min_thread_work_items(GCParPhases phase); 136 size_t max_thread_work_items(GCParPhases phase); 137 138 public: 139 140 void record_clear_ct_time(double ms) { 141 _cur_clear_ct_time_ms = ms; 142 } 143 144 void record_par_time(double ms) { 145 _cur_collection_par_time_ms = ms; 146 } 147 148 void record_code_root_fixup_time(double ms) { 149 _cur_collection_code_root_fixup_time_ms = ms; 150 } 151 152 void record_strong_code_root_purge_time(double ms) { 153 _cur_strong_code_root_purge_time_ms = ms; 154 } 155 156 void record_evac_fail_recalc_used_time(double ms) { 157 _cur_evac_fail_recalc_used = ms; 158 } 159 160 void record_evac_fail_restore_remsets(double ms) { 161 _cur_evac_fail_restore_remsets = ms; 162 } 163 164 void record_evac_fail_remove_self_forwards(double ms) { 165 _cur_evac_fail_remove_self_forwards = ms; 166 } 167 168 void record_string_dedup_fixup_time(double ms) { 169 _cur_string_dedup_fixup_time_ms = ms; 170 } 171 172 void record_ref_proc_time(double ms) { 173 _cur_ref_proc_time_ms = ms; 174 } 175 176 void record_ref_enq_time(double ms) { 177 _cur_ref_enq_time_ms = ms; 178 } 179 180 void record_root_region_scan_wait_time(double time_ms) { 181 _root_region_scan_wait_time_ms = time_ms; 182 } 183 184 void record_young_free_cset_time_ms(double time_ms) { 185 _recorded_young_free_cset_time_ms = time_ms; 186 } 187 188 void record_non_young_free_cset_time_ms(double time_ms) { 189 _recorded_non_young_free_cset_time_ms = time_ms; 190 } 191 192 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) { 193 _cur_fast_reclaim_humongous_register_time_ms = time_ms; 194 _cur_fast_reclaim_humongous_total = total; 195 _cur_fast_reclaim_humongous_candidates = candidates; 196 } 197 198 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) { 199 _cur_fast_reclaim_humongous_time_ms = value; 200 _cur_fast_reclaim_humongous_reclaimed = reclaimed; 201 } 202 203 void record_young_cset_choice_time_ms(double time_ms) { 204 _recorded_young_cset_choice_time_ms = time_ms; 205 } 206 207 void record_non_young_cset_choice_time_ms(double time_ms) { 208 _recorded_non_young_cset_choice_time_ms = time_ms; 209 } 210 211 void record_redirty_logged_cards_time_ms(double time_ms) { 212 _recorded_redirty_logged_cards_time_ms = time_ms; 213 } 214 215 void record_cur_collection_start_sec(double time_ms) { 216 _cur_collection_start_sec = time_ms; 217 } 218 219 void record_verify_before_time_ms(double time_ms) { 220 _cur_verify_before_time_ms = time_ms; 221 } 222 223 void record_verify_after_time_ms(double time_ms) { 224 _cur_verify_after_time_ms = time_ms; 225 } 226 227 double accounted_time_ms(); 228 229 double cur_collection_start_sec() { 230 return _cur_collection_start_sec; 231 } 232 233 double cur_collection_par_time_ms() { 234 return _cur_collection_par_time_ms; 235 } 236 237 double cur_clear_ct_time_ms() { 238 return _cur_clear_ct_time_ms; 239 } 240 241 double root_region_scan_wait_time_ms() { 242 return _root_region_scan_wait_time_ms; 243 } 244 245 double young_cset_choice_time_ms() { 246 return _recorded_young_cset_choice_time_ms; 247 } 248 249 double young_free_cset_time_ms() { 250 return _recorded_young_free_cset_time_ms; 251 } 252 253 double non_young_cset_choice_time_ms() { 254 return _recorded_non_young_cset_choice_time_ms; 255 } 256 257 double non_young_free_cset_time_ms() { 258 return _recorded_non_young_free_cset_time_ms; 259 } 260 261 double fast_reclaim_humongous_time_ms() { 262 return _cur_fast_reclaim_humongous_time_ms; 263 } 264 }; 265 266 class G1GCParPhaseTimesTracker : public StackObj { 267 double _start_time; 268 G1GCPhaseTimes::GCParPhases _phase; 269 G1GCPhaseTimes* _phase_times; 270 uint _worker_id; 271 public: 272 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id); 273 ~G1GCParPhaseTimesTracker(); 274 }; 275 276 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP