1 /* 2 * Copyright (c) 2013, 2017, 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_G1_G1GCPHASETIMES_HPP 26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP 27 28 #include "gc/shared/referenceProcessorPhaseTimes.hpp" 29 #include "logging/logLevel.hpp" 30 #include "memory/allocation.hpp" 31 #include "utilities/macros.hpp" 32 33 class LineBuffer; 34 class STWGCTimer; 35 36 template <class T> class WorkerDataArray; 37 38 class G1GCPhaseTimes : public CHeapObj<mtGC> { 39 uint _max_gc_threads; 40 jlong _gc_start_counter; 41 double _gc_pause_time_ms; 42 43 public: 44 enum GCParPhases { 45 GCWorkerStart, 46 ExtRootScan, 47 ThreadRoots, 48 StringTableRoots, 49 UniverseRoots, 50 JNIRoots, 51 ObjectSynchronizerRoots, 52 FlatProfilerRoots, 53 ManagementRoots, 54 SystemDictionaryRoots, 55 CLDGRoots, 56 JVMTIRoots, 57 CMRefRoots, 58 WaitForStrongCLD, 59 WeakCLDRoots, 60 SATBFiltering, 61 UpdateRS, 62 ScanHCC, 63 ScanRS, 64 CodeRoots, 65 #if INCLUDE_AOT 66 AOTCodeRoots, 67 #endif 68 ObjCopy, 69 Termination, 70 Other, 71 GCWorkerTotal, 72 GCWorkerEnd, 73 StringDedupQueueFixup, 74 StringDedupTableFixup, 75 RedirtyCards, 76 PreserveCMReferents, 77 YoungFreeCSet, 78 NonYoungFreeCSet, 79 GCParPhasesSentinel 80 }; 81 82 enum GCScanRSWorkItems { 83 ScannedCards, 84 ClaimedCards, 85 SkippedCards 86 }; 87 88 private: 89 // Markers for grouping the phases in the GCPhases enum above 90 static const int GCMainParPhasesLast = GCWorkerEnd; 91 static const int StringDedupPhasesFirst = StringDedupQueueFixup; 92 static const int StringDedupPhasesLast = StringDedupTableFixup; 93 94 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel]; 95 96 WorkerDataArray<size_t>* _update_rs_processed_buffers; 97 98 WorkerDataArray<size_t>* _scan_rs_scanned_cards; 99 WorkerDataArray<size_t>* _scan_rs_claimed_cards; 100 WorkerDataArray<size_t>* _scan_rs_skipped_cards; 101 102 WorkerDataArray<size_t>* _termination_attempts; 103 104 WorkerDataArray<size_t>* _redirtied_cards; 105 106 double _cur_collection_par_time_ms; 107 double _cur_collection_code_root_fixup_time_ms; 108 double _cur_strong_code_root_purge_time_ms; 109 110 double _cur_evac_fail_recalc_used; 111 double _cur_evac_fail_remove_self_forwards; 112 113 double _cur_string_dedup_fixup_time_ms; 114 115 double _cur_prepare_tlab_time_ms; 116 double _cur_resize_tlab_time_ms; 117 118 double _cur_derived_pointer_table_update_time_ms; 119 120 double _cur_clear_ct_time_ms; 121 double _cur_expand_heap_time_ms; 122 double _cur_ref_proc_time_ms; 123 double _cur_ref_enq_time_ms; 124 125 double _cur_collection_start_sec; 126 double _root_region_scan_wait_time_ms; 127 128 double _external_accounted_time_ms; 129 130 double _recorded_clear_claimed_marks_time_ms; 131 132 double _recorded_young_cset_choice_time_ms; 133 double _recorded_non_young_cset_choice_time_ms; 134 135 double _recorded_redirty_logged_cards_time_ms; 136 137 double _recorded_preserve_cm_referents_time_ms; 138 139 double _recorded_merge_pss_time_ms; 140 141 double _recorded_start_new_cset_time_ms; 142 143 double _recorded_total_free_cset_time_ms; 144 145 double _recorded_serial_free_cset_time_ms; 146 147 double _cur_fast_reclaim_humongous_time_ms; 148 double _cur_fast_reclaim_humongous_register_time_ms; 149 size_t _cur_fast_reclaim_humongous_total; 150 size_t _cur_fast_reclaim_humongous_candidates; 151 size_t _cur_fast_reclaim_humongous_reclaimed; 152 153 double _cur_verify_before_time_ms; 154 double _cur_verify_after_time_ms; 155 156 ReferenceProcessorPhaseTimes _ref_phase_times; 157 158 double worker_time(GCParPhases phase, uint worker); 159 void note_gc_end(); 160 void reset(); 161 162 template <class T> 163 void details(T* phase, const char* indent) const; 164 165 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const; 166 void debug_phase(WorkerDataArray<double>* phase) const; 167 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const; 168 169 void info_time(const char* name, double value) const; 170 void debug_time(const char* name, double value) const; 171 // This will print logs for both 'gc+phases' and 'gc+phases+ref'. 172 void debug_time_for_reference(const char* name, double value) const; 173 void trace_time(const char* name, double value) const; 174 void trace_count(const char* name, size_t value) const; 175 176 double print_pre_evacuate_collection_set() const; 177 double print_evacuate_collection_set() const; 178 double print_post_evacuate_collection_set() const; 179 void print_other(double accounted_ms) const; 180 181 public: 182 G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads); 183 void note_gc_start(); 184 void print(); 185 186 // record the time a phase took in seconds 187 void record_time_secs(GCParPhases phase, uint worker_i, double secs); 188 189 // add a number of seconds to a phase 190 void add_time_secs(GCParPhases phase, uint worker_i, double secs); 191 192 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0); 193 194 // return the average time for a phase in milliseconds 195 double average_time_ms(GCParPhases phase); 196 197 size_t sum_thread_work_items(GCParPhases phase, uint index = 0); 198 199 public: 200 201 void record_prepare_tlab_time_ms(double ms) { 202 _cur_prepare_tlab_time_ms = ms; 203 } 204 205 void record_resize_tlab_time_ms(double ms) { 206 _cur_resize_tlab_time_ms = ms; 207 } 208 209 void record_derived_pointer_table_update_time(double ms) { 210 _cur_derived_pointer_table_update_time_ms = ms; 211 } 212 213 void record_clear_ct_time(double ms) { 214 _cur_clear_ct_time_ms = ms; 215 } 216 217 void record_expand_heap_time(double ms) { 218 _cur_expand_heap_time_ms = ms; 219 } 220 221 void record_par_time(double ms) { 222 _cur_collection_par_time_ms = ms; 223 } 224 225 void record_code_root_fixup_time(double ms) { 226 _cur_collection_code_root_fixup_time_ms = ms; 227 } 228 229 void record_strong_code_root_purge_time(double ms) { 230 _cur_strong_code_root_purge_time_ms = ms; 231 } 232 233 void record_evac_fail_recalc_used_time(double ms) { 234 _cur_evac_fail_recalc_used = ms; 235 } 236 237 void record_evac_fail_remove_self_forwards(double ms) { 238 _cur_evac_fail_remove_self_forwards = ms; 239 } 240 241 void record_string_dedup_fixup_time(double ms) { 242 _cur_string_dedup_fixup_time_ms = ms; 243 } 244 245 void record_ref_proc_time(double ms) { 246 _cur_ref_proc_time_ms = ms; 247 } 248 249 void record_ref_enq_time(double ms) { 250 _cur_ref_enq_time_ms = ms; 251 } 252 253 void record_root_region_scan_wait_time(double time_ms) { 254 _root_region_scan_wait_time_ms = time_ms; 255 } 256 257 void record_total_free_cset_time_ms(double time_ms) { 258 _recorded_total_free_cset_time_ms = time_ms; 259 } 260 261 void record_serial_free_cset_time_ms(double time_ms) { 262 _recorded_serial_free_cset_time_ms = time_ms; 263 } 264 265 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) { 266 _cur_fast_reclaim_humongous_register_time_ms = time_ms; 267 _cur_fast_reclaim_humongous_total = total; 268 _cur_fast_reclaim_humongous_candidates = candidates; 269 } 270 271 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) { 272 _cur_fast_reclaim_humongous_time_ms = value; 273 _cur_fast_reclaim_humongous_reclaimed = reclaimed; 274 } 275 276 void record_young_cset_choice_time_ms(double time_ms) { 277 _recorded_young_cset_choice_time_ms = time_ms; 278 } 279 280 void record_non_young_cset_choice_time_ms(double time_ms) { 281 _recorded_non_young_cset_choice_time_ms = time_ms; 282 } 283 284 void record_redirty_logged_cards_time_ms(double time_ms) { 285 _recorded_redirty_logged_cards_time_ms = time_ms; 286 } 287 288 void record_preserve_cm_referents_time_ms(double time_ms) { 289 _recorded_preserve_cm_referents_time_ms = time_ms; 290 } 291 292 void record_merge_pss_time_ms(double time_ms) { 293 _recorded_merge_pss_time_ms = time_ms; 294 } 295 296 void record_start_new_cset_time_ms(double time_ms) { 297 _recorded_start_new_cset_time_ms = time_ms; 298 } 299 300 void record_cur_collection_start_sec(double time_ms) { 301 _cur_collection_start_sec = time_ms; 302 } 303 304 void record_verify_before_time_ms(double time_ms) { 305 _cur_verify_before_time_ms = time_ms; 306 } 307 308 void record_verify_after_time_ms(double time_ms) { 309 _cur_verify_after_time_ms = time_ms; 310 } 311 312 void inc_external_accounted_time_ms(double time_ms) { 313 _external_accounted_time_ms += time_ms; 314 } 315 316 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) { 317 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms; 318 } 319 320 double cur_collection_start_sec() { 321 return _cur_collection_start_sec; 322 } 323 324 double cur_collection_par_time_ms() { 325 return _cur_collection_par_time_ms; 326 } 327 328 double cur_clear_ct_time_ms() { 329 return _cur_clear_ct_time_ms; 330 } 331 332 double cur_expand_heap_time_ms() { 333 return _cur_expand_heap_time_ms; 334 } 335 336 double root_region_scan_wait_time_ms() { 337 return _root_region_scan_wait_time_ms; 338 } 339 340 double young_cset_choice_time_ms() { 341 return _recorded_young_cset_choice_time_ms; 342 } 343 344 double total_free_cset_time_ms() { 345 return _recorded_total_free_cset_time_ms; 346 } 347 348 double non_young_cset_choice_time_ms() { 349 return _recorded_non_young_cset_choice_time_ms; 350 } 351 352 double fast_reclaim_humongous_time_ms() { 353 return _cur_fast_reclaim_humongous_time_ms; 354 } 355 356 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; } 357 }; 358 359 class G1GCParPhaseTimesTracker : public StackObj { 360 double _start_time; 361 G1GCPhaseTimes::GCParPhases _phase; 362 G1GCPhaseTimes* _phase_times; 363 uint _worker_id; 364 public: 365 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id); 366 ~G1GCParPhaseTimesTracker(); 367 }; 368 369 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP