1 /* 2 * Copyright (c) 2013, 2018, 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 "gc/shared/weakProcessorPhaseTimes.hpp" 30 #include "jfr/jfrEvents.hpp" 31 #include "logging/logLevel.hpp" 32 #include "memory/allocation.hpp" 33 #include "utilities/macros.hpp" 34 35 class LineBuffer; 36 class G1ParScanThreadState; 37 class STWGCTimer; 38 39 template <class T> class WorkerDataArray; 40 41 class G1GCPhaseTimes : public CHeapObj<mtGC> { 42 uint _max_gc_threads; 43 jlong _gc_start_counter; 44 double _gc_pause_time_ms; 45 46 public: 47 enum GCParPhases { 48 GCWorkerStart, 49 ExtRootScan, 50 ThreadRoots, 51 StringTableRoots, 52 UniverseRoots, 53 JNIRoots, 54 ObjectSynchronizerRoots, 55 ManagementRoots, 56 SystemDictionaryRoots, 57 CLDGRoots, 58 JVMTIRoots, 59 CMRefRoots, 60 WaitForStrongCLD, 61 WeakCLDRoots, 62 SATBFiltering, 63 UpdateRS, 64 ScanHCC, 65 ScanRS, 66 OptScanRS, 67 CodeRoots, 68 #if INCLUDE_AOT 69 AOTCodeRoots, 70 #endif 71 ObjCopy, 72 OptObjCopy, 73 Termination, 74 Other, 75 GCWorkerTotal, 76 GCWorkerEnd, 77 StringDedupQueueFixup, 78 StringDedupTableFixup, 79 RedirtyCards, 80 YoungFreeCSet, 81 NonYoungFreeCSet, 82 GCParPhasesSentinel 83 }; 84 85 enum GCScanRSWorkItems { 86 ScanRSScannedCards, 87 ScanRSClaimedCards, 88 ScanRSSkippedCards 89 }; 90 91 enum GCUpdateRSWorkItems { 92 UpdateRSProcessedBuffers, 93 UpdateRSScannedCards, 94 UpdateRSSkippedCards 95 }; 96 97 enum GCOptCSetWorkItems { 98 OptCSetScannedCards, 99 OptCSetClaimedCards, 100 OptCSetSkippedCards, 101 OptCSetUsedMemory 102 }; 103 104 private: 105 // Markers for grouping the phases in the GCPhases enum above 106 static const int GCMainParPhasesLast = GCWorkerEnd; 107 static const int StringDedupPhasesFirst = StringDedupQueueFixup; 108 static const int StringDedupPhasesLast = StringDedupTableFixup; 109 110 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel]; 111 112 WorkerDataArray<size_t>* _update_rs_processed_buffers; 113 WorkerDataArray<size_t>* _update_rs_scanned_cards; 114 WorkerDataArray<size_t>* _update_rs_skipped_cards; 115 116 WorkerDataArray<size_t>* _scan_rs_scanned_cards; 117 WorkerDataArray<size_t>* _scan_rs_claimed_cards; 118 WorkerDataArray<size_t>* _scan_rs_skipped_cards; 119 120 WorkerDataArray<size_t>* _opt_cset_scanned_cards; 121 WorkerDataArray<size_t>* _opt_cset_claimed_cards; 122 WorkerDataArray<size_t>* _opt_cset_skipped_cards; 123 WorkerDataArray<size_t>* _opt_cset_used_memory; 124 125 WorkerDataArray<size_t>* _termination_attempts; 126 127 WorkerDataArray<size_t>* _redirtied_cards; 128 129 double _cur_collection_par_time_ms; 130 double _cur_optional_evac_ms; 131 double _cur_collection_code_root_fixup_time_ms; 132 double _cur_strong_code_root_purge_time_ms; 133 134 double _cur_evac_fail_recalc_used; 135 double _cur_evac_fail_remove_self_forwards; 136 137 double _cur_string_dedup_fixup_time_ms; 138 139 double _cur_prepare_tlab_time_ms; 140 double _cur_resize_tlab_time_ms; 141 142 double _cur_derived_pointer_table_update_time_ms; 143 144 double _cur_clear_ct_time_ms; 145 double _cur_expand_heap_time_ms; 146 double _cur_ref_proc_time_ms; 147 148 double _cur_collection_start_sec; 149 double _root_region_scan_wait_time_ms; 150 151 double _external_accounted_time_ms; 152 153 double _recorded_clear_claimed_marks_time_ms; 154 155 double _recorded_young_cset_choice_time_ms; 156 double _recorded_non_young_cset_choice_time_ms; 157 158 double _recorded_redirty_logged_cards_time_ms; 159 160 double _recorded_preserve_cm_referents_time_ms; 161 162 double _recorded_merge_pss_time_ms; 163 164 double _recorded_start_new_cset_time_ms; 165 166 double _recorded_total_free_cset_time_ms; 167 168 double _recorded_serial_free_cset_time_ms; 169 170 double _cur_fast_reclaim_humongous_time_ms; 171 double _cur_fast_reclaim_humongous_register_time_ms; 172 size_t _cur_fast_reclaim_humongous_total; 173 size_t _cur_fast_reclaim_humongous_candidates; 174 size_t _cur_fast_reclaim_humongous_reclaimed; 175 176 double _cur_verify_before_time_ms; 177 double _cur_verify_after_time_ms; 178 179 ReferenceProcessorPhaseTimes _ref_phase_times; 180 WeakProcessorPhaseTimes _weak_phase_times; 181 182 double worker_time(GCParPhases phase, uint worker); 183 void note_gc_end(); 184 void reset(); 185 186 template <class T> 187 void details(T* phase, const char* indent) const; 188 189 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const; 190 void debug_phase(WorkerDataArray<double>* phase) const; 191 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const; 192 193 void info_time(const char* name, double value) const; 194 void debug_time(const char* name, double value) const; 195 // This will print logs for both 'gc+phases' and 'gc+phases+ref'. 196 void debug_time_for_reference(const char* name, double value) const; 197 void trace_time(const char* name, double value) const; 198 void trace_count(const char* name, size_t value) const; 199 200 double print_pre_evacuate_collection_set() const; 201 double print_evacuate_collection_set() const; 202 double print_evacuate_optional_collection_set() const; 203 double print_post_evacuate_collection_set() const; 204 void print_other(double accounted_ms) const; 205 206 public: 207 G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads); 208 void note_gc_start(); 209 void print(); 210 static const char* phase_name(GCParPhases phase); 211 212 // record the time a phase took in seconds 213 void record_time_secs(GCParPhases phase, uint worker_i, double secs); 214 215 // add a number of seconds to a phase 216 void add_time_secs(GCParPhases phase, uint worker_i, double secs); 217 218 void record_or_add_time_secs(GCParPhases phase, uint worker_i, double secs); 219 220 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0); 221 222 // return the average time for a phase in milliseconds 223 double average_time_ms(GCParPhases phase); 224 225 size_t sum_thread_work_items(GCParPhases phase, uint index = 0); 226 227 public: 228 229 void record_prepare_tlab_time_ms(double ms) { 230 _cur_prepare_tlab_time_ms = ms; 231 } 232 233 void record_resize_tlab_time_ms(double ms) { 234 _cur_resize_tlab_time_ms = ms; 235 } 236 237 void record_derived_pointer_table_update_time(double ms) { 238 _cur_derived_pointer_table_update_time_ms = ms; 239 } 240 241 void record_clear_ct_time(double ms) { 242 _cur_clear_ct_time_ms = ms; 243 } 244 245 void record_expand_heap_time(double ms) { 246 _cur_expand_heap_time_ms = ms; 247 } 248 249 void record_par_time(double ms) { 250 _cur_collection_par_time_ms = ms; 251 } 252 253 void record_optional_evacuation(double ms) { 254 _cur_optional_evac_ms = ms; 255 } 256 257 void record_code_root_fixup_time(double ms) { 258 _cur_collection_code_root_fixup_time_ms = ms; 259 } 260 261 void record_strong_code_root_purge_time(double ms) { 262 _cur_strong_code_root_purge_time_ms = ms; 263 } 264 265 void record_evac_fail_recalc_used_time(double ms) { 266 _cur_evac_fail_recalc_used = ms; 267 } 268 269 void record_evac_fail_remove_self_forwards(double ms) { 270 _cur_evac_fail_remove_self_forwards = ms; 271 } 272 273 void record_string_dedup_fixup_time(double ms) { 274 _cur_string_dedup_fixup_time_ms = ms; 275 } 276 277 void record_ref_proc_time(double ms) { 278 _cur_ref_proc_time_ms = ms; 279 } 280 281 void record_root_region_scan_wait_time(double time_ms) { 282 _root_region_scan_wait_time_ms = time_ms; 283 } 284 285 void record_total_free_cset_time_ms(double time_ms) { 286 _recorded_total_free_cset_time_ms = time_ms; 287 } 288 289 void record_serial_free_cset_time_ms(double time_ms) { 290 _recorded_serial_free_cset_time_ms = time_ms; 291 } 292 293 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) { 294 _cur_fast_reclaim_humongous_register_time_ms = time_ms; 295 _cur_fast_reclaim_humongous_total = total; 296 _cur_fast_reclaim_humongous_candidates = candidates; 297 } 298 299 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) { 300 _cur_fast_reclaim_humongous_time_ms = value; 301 _cur_fast_reclaim_humongous_reclaimed = reclaimed; 302 } 303 304 void record_young_cset_choice_time_ms(double time_ms) { 305 _recorded_young_cset_choice_time_ms = time_ms; 306 } 307 308 void record_non_young_cset_choice_time_ms(double time_ms) { 309 _recorded_non_young_cset_choice_time_ms = time_ms; 310 } 311 312 void record_redirty_logged_cards_time_ms(double time_ms) { 313 _recorded_redirty_logged_cards_time_ms = time_ms; 314 } 315 316 void record_preserve_cm_referents_time_ms(double time_ms) { 317 _recorded_preserve_cm_referents_time_ms = time_ms; 318 } 319 320 void record_merge_pss_time_ms(double time_ms) { 321 _recorded_merge_pss_time_ms = time_ms; 322 } 323 324 void record_start_new_cset_time_ms(double time_ms) { 325 _recorded_start_new_cset_time_ms = time_ms; 326 } 327 328 void record_cur_collection_start_sec(double time_ms) { 329 _cur_collection_start_sec = time_ms; 330 } 331 332 void record_verify_before_time_ms(double time_ms) { 333 _cur_verify_before_time_ms = time_ms; 334 } 335 336 void record_verify_after_time_ms(double time_ms) { 337 _cur_verify_after_time_ms = time_ms; 338 } 339 340 void inc_external_accounted_time_ms(double time_ms) { 341 _external_accounted_time_ms += time_ms; 342 } 343 344 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) { 345 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms; 346 } 347 348 double cur_collection_start_sec() { 349 return _cur_collection_start_sec; 350 } 351 352 double cur_collection_par_time_ms() { 353 return _cur_collection_par_time_ms; 354 } 355 356 double cur_clear_ct_time_ms() { 357 return _cur_clear_ct_time_ms; 358 } 359 360 double cur_expand_heap_time_ms() { 361 return _cur_expand_heap_time_ms; 362 } 363 364 double root_region_scan_wait_time_ms() { 365 return _root_region_scan_wait_time_ms; 366 } 367 368 double young_cset_choice_time_ms() { 369 return _recorded_young_cset_choice_time_ms; 370 } 371 372 double total_free_cset_time_ms() { 373 return _recorded_total_free_cset_time_ms; 374 } 375 376 double non_young_cset_choice_time_ms() { 377 return _recorded_non_young_cset_choice_time_ms; 378 } 379 380 double fast_reclaim_humongous_time_ms() { 381 return _cur_fast_reclaim_humongous_time_ms; 382 } 383 384 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; } 385 386 WeakProcessorPhaseTimes* weak_phase_times() { return &_weak_phase_times; } 387 }; 388 389 class G1EvacPhaseWithTrimTimeTracker : public StackObj { 390 G1ParScanThreadState* _pss; 391 Ticks _start; 392 393 Tickspan& _total_time; 394 Tickspan& _trim_time; 395 396 bool _stopped; 397 public: 398 G1EvacPhaseWithTrimTimeTracker(G1ParScanThreadState* pss, Tickspan& total_time, Tickspan& trim_time); 399 ~G1EvacPhaseWithTrimTimeTracker(); 400 401 void stop(); 402 }; 403 404 class G1GCParPhaseTimesTracker : public CHeapObj<mtGC> { 405 protected: 406 Ticks _start_time; 407 G1GCPhaseTimes::GCParPhases _phase; 408 G1GCPhaseTimes* _phase_times; 409 uint _worker_id; 410 EventGCPhaseParallel _event; 411 public: 412 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id); 413 virtual ~G1GCParPhaseTimesTracker(); 414 }; 415 416 class G1EvacPhaseTimesTracker : public G1GCParPhaseTimesTracker { 417 Tickspan _total_time; 418 Tickspan _trim_time; 419 420 G1EvacPhaseWithTrimTimeTracker _trim_tracker; 421 public: 422 G1EvacPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1ParScanThreadState* pss, G1GCPhaseTimes::GCParPhases phase, uint worker_id); 423 virtual ~G1EvacPhaseTimesTracker(); 424 }; 425 426 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP