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 #include "precompiled.hpp" 26 #include "gc/g1/g1CollectedHeap.inline.hpp" 27 #include "gc/g1/g1GCPhaseTimes.hpp" 28 #include "gc/g1/g1HotCardCache.hpp" 29 #include "gc/g1/g1ParScanThreadState.inline.hpp" 30 #include "gc/g1/g1StringDedup.hpp" 31 #include "gc/shared/workerDataArray.inline.hpp" 32 #include "memory/resourceArea.hpp" 33 #include "logging/log.hpp" 34 #include "logging/logStream.hpp" 35 #include "runtime/timer.hpp" 36 #include "runtime/os.hpp" 37 #include "utilities/macros.hpp" 38 39 static const char* Indents[5] = {"", " ", " ", " ", " "}; 40 41 G1GCPhaseTimes::G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads) : 42 _max_gc_threads(max_gc_threads), 43 _gc_start_counter(0), 44 _gc_pause_time_ms(0.0), 45 _ref_phase_times((GCTimer*)gc_timer, max_gc_threads) 46 { 47 assert(max_gc_threads > 0, "Must have some GC threads"); 48 49 _gc_par_phases[GCWorkerStart] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Start (ms):"); 50 _gc_par_phases[ExtRootScan] = new WorkerDataArray<double>(max_gc_threads, "Ext Root Scanning (ms):"); 51 52 // Root scanning phases 53 _gc_par_phases[ThreadRoots] = new WorkerDataArray<double>(max_gc_threads, "Thread Roots (ms):"); 54 _gc_par_phases[StringTableRoots] = new WorkerDataArray<double>(max_gc_threads, "StringTable Roots (ms):"); 55 _gc_par_phases[UniverseRoots] = new WorkerDataArray<double>(max_gc_threads, "Universe Roots (ms):"); 56 _gc_par_phases[JNIRoots] = new WorkerDataArray<double>(max_gc_threads, "JNI Handles Roots (ms):"); 57 _gc_par_phases[ObjectSynchronizerRoots] = new WorkerDataArray<double>(max_gc_threads, "ObjectSynchronizer Roots (ms):"); 58 _gc_par_phases[ManagementRoots] = new WorkerDataArray<double>(max_gc_threads, "Management Roots (ms):"); 59 _gc_par_phases[SystemDictionaryRoots] = new WorkerDataArray<double>(max_gc_threads, "SystemDictionary Roots (ms):"); 60 _gc_par_phases[CLDGRoots] = new WorkerDataArray<double>(max_gc_threads, "CLDG Roots (ms):"); 61 _gc_par_phases[JVMTIRoots] = new WorkerDataArray<double>(max_gc_threads, "JVMTI Roots (ms):"); 62 _gc_par_phases[CMRefRoots] = new WorkerDataArray<double>(max_gc_threads, "CM RefProcessor Roots (ms):"); 63 _gc_par_phases[WaitForStrongCLD] = new WorkerDataArray<double>(max_gc_threads, "Wait For Strong CLD (ms):"); 64 _gc_par_phases[WeakCLDRoots] = new WorkerDataArray<double>(max_gc_threads, "Weak CLD Roots (ms):"); 65 _gc_par_phases[SATBFiltering] = new WorkerDataArray<double>(max_gc_threads, "SATB Filtering (ms):"); 66 67 _gc_par_phases[UpdateRS] = new WorkerDataArray<double>(max_gc_threads, "Update RS (ms):"); 68 if (G1HotCardCache::default_use_cache()) { 69 _gc_par_phases[ScanHCC] = new WorkerDataArray<double>(max_gc_threads, "Scan HCC (ms):"); 70 } else { 71 _gc_par_phases[ScanHCC] = NULL; 72 } 73 _gc_par_phases[ScanRS] = new WorkerDataArray<double>(max_gc_threads, "Scan RS (ms):"); 74 _gc_par_phases[CodeRoots] = new WorkerDataArray<double>(max_gc_threads, "Code Root Scanning (ms):"); 75 #if INCLUDE_AOT 76 _gc_par_phases[AOTCodeRoots] = new WorkerDataArray<double>(max_gc_threads, "AOT Root Scanning (ms):"); 77 #endif 78 _gc_par_phases[ObjCopy] = new WorkerDataArray<double>(max_gc_threads, "Object Copy (ms):"); 79 _gc_par_phases[Termination] = new WorkerDataArray<double>(max_gc_threads, "Termination (ms):"); 80 _gc_par_phases[GCWorkerTotal] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Total (ms):"); 81 _gc_par_phases[GCWorkerEnd] = new WorkerDataArray<double>(max_gc_threads, "GC Worker End (ms):"); 82 _gc_par_phases[Other] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Other (ms):"); 83 84 _scan_rs_scanned_cards = new WorkerDataArray<size_t>(max_gc_threads, "Scanned Cards:"); 85 _gc_par_phases[ScanRS]->link_thread_work_items(_scan_rs_scanned_cards, ScanRSScannedCards); 86 _scan_rs_claimed_cards = new WorkerDataArray<size_t>(max_gc_threads, "Claimed Cards:"); 87 _gc_par_phases[ScanRS]->link_thread_work_items(_scan_rs_claimed_cards, ScanRSClaimedCards); 88 _scan_rs_skipped_cards = new WorkerDataArray<size_t>(max_gc_threads, "Skipped Cards:"); 89 _gc_par_phases[ScanRS]->link_thread_work_items(_scan_rs_skipped_cards, ScanRSSkippedCards); 90 91 _update_rs_processed_buffers = new WorkerDataArray<size_t>(max_gc_threads, "Processed Buffers:"); 92 _gc_par_phases[UpdateRS]->link_thread_work_items(_update_rs_processed_buffers, UpdateRSProcessedBuffers); 93 _update_rs_scanned_cards = new WorkerDataArray<size_t>(max_gc_threads, "Scanned Cards:"); 94 _gc_par_phases[UpdateRS]->link_thread_work_items(_update_rs_scanned_cards, UpdateRSScannedCards); 95 _update_rs_skipped_cards = new WorkerDataArray<size_t>(max_gc_threads, "Skipped Cards:"); 96 _gc_par_phases[UpdateRS]->link_thread_work_items(_update_rs_skipped_cards, ScanRSSkippedCards); 97 98 _termination_attempts = new WorkerDataArray<size_t>(max_gc_threads, "Termination Attempts:"); 99 _gc_par_phases[Termination]->link_thread_work_items(_termination_attempts); 100 101 if (UseStringDeduplication) { 102 _gc_par_phases[StringDedupQueueFixup] = new WorkerDataArray<double>(max_gc_threads, "Queue Fixup (ms):"); 103 _gc_par_phases[StringDedupTableFixup] = new WorkerDataArray<double>(max_gc_threads, "Table Fixup (ms):"); 104 } else { 105 _gc_par_phases[StringDedupQueueFixup] = NULL; 106 _gc_par_phases[StringDedupTableFixup] = NULL; 107 } 108 109 _gc_par_phases[RedirtyCards] = new WorkerDataArray<double>(max_gc_threads, "Parallel Redirty (ms):"); 110 _redirtied_cards = new WorkerDataArray<size_t>(max_gc_threads, "Redirtied Cards:"); 111 _gc_par_phases[RedirtyCards]->link_thread_work_items(_redirtied_cards); 112 113 _gc_par_phases[YoungFreeCSet] = new WorkerDataArray<double>(max_gc_threads, "Young Free Collection Set (ms):"); 114 _gc_par_phases[NonYoungFreeCSet] = new WorkerDataArray<double>(max_gc_threads, "Non-Young Free Collection Set (ms):"); 115 116 reset(); 117 } 118 119 void G1GCPhaseTimes::reset() { 120 _cur_collection_par_time_ms = 0.0; 121 _cur_collection_code_root_fixup_time_ms = 0.0; 122 _cur_strong_code_root_purge_time_ms = 0.0; 123 _cur_evac_fail_recalc_used = 0.0; 124 _cur_evac_fail_remove_self_forwards = 0.0; 125 _cur_string_dedup_fixup_time_ms = 0.0; 126 _cur_prepare_tlab_time_ms = 0.0; 127 _cur_resize_tlab_time_ms = 0.0; 128 _cur_derived_pointer_table_update_time_ms = 0.0; 129 _cur_clear_ct_time_ms = 0.0; 130 _cur_expand_heap_time_ms = 0.0; 131 _cur_ref_proc_time_ms = 0.0; 132 _cur_ref_enq_time_ms = 0.0; 133 _cur_weak_ref_proc_time_ms = 0.0; 134 _cur_collection_start_sec = 0.0; 135 _root_region_scan_wait_time_ms = 0.0; 136 _external_accounted_time_ms = 0.0; 137 _recorded_clear_claimed_marks_time_ms = 0.0; 138 _recorded_young_cset_choice_time_ms = 0.0; 139 _recorded_non_young_cset_choice_time_ms = 0.0; 140 _recorded_redirty_logged_cards_time_ms = 0.0; 141 _recorded_preserve_cm_referents_time_ms = 0.0; 142 _recorded_merge_pss_time_ms = 0.0; 143 _recorded_start_new_cset_time_ms = 0.0; 144 _recorded_total_free_cset_time_ms = 0.0; 145 _recorded_serial_free_cset_time_ms = 0.0; 146 _cur_fast_reclaim_humongous_time_ms = 0.0; 147 _cur_fast_reclaim_humongous_register_time_ms = 0.0; 148 _cur_fast_reclaim_humongous_total = 0; 149 _cur_fast_reclaim_humongous_candidates = 0; 150 _cur_fast_reclaim_humongous_reclaimed = 0; 151 _cur_verify_before_time_ms = 0.0; 152 _cur_verify_after_time_ms = 0.0; 153 154 for (int i = 0; i < GCParPhasesSentinel; i++) { 155 if (_gc_par_phases[i] != NULL) { 156 _gc_par_phases[i]->reset(); 157 } 158 } 159 160 _ref_phase_times.reset(); 161 } 162 163 void G1GCPhaseTimes::note_gc_start() { 164 _gc_start_counter = os::elapsed_counter(); 165 reset(); 166 } 167 168 #define ASSERT_PHASE_UNINITIALIZED(phase) \ 169 assert(_gc_par_phases[phase] == NULL || _gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started"); 170 171 double G1GCPhaseTimes::worker_time(GCParPhases phase, uint worker) { 172 if (_gc_par_phases[phase] == NULL) { 173 return 0.0; 174 } 175 double value = _gc_par_phases[phase]->get(worker); 176 if (value != WorkerDataArray<double>::uninitialized()) { 177 return value; 178 } 179 return 0.0; 180 } 181 182 void G1GCPhaseTimes::note_gc_end() { 183 _gc_pause_time_ms = TimeHelper::counter_to_millis(os::elapsed_counter() - _gc_start_counter); 184 185 double uninitialized = WorkerDataArray<double>::uninitialized(); 186 187 for (uint i = 0; i < _max_gc_threads; i++) { 188 double worker_start = _gc_par_phases[GCWorkerStart]->get(i); 189 if (worker_start != uninitialized) { 190 assert(_gc_par_phases[GCWorkerEnd]->get(i) != uninitialized, "Worker started but not ended."); 191 double total_worker_time = _gc_par_phases[GCWorkerEnd]->get(i) - _gc_par_phases[GCWorkerStart]->get(i); 192 record_time_secs(GCWorkerTotal, i , total_worker_time); 193 194 double worker_known_time = worker_time(ExtRootScan, i) + 195 worker_time(ScanHCC, i) + 196 worker_time(UpdateRS, i) + 197 worker_time(ScanRS, i) + 198 worker_time(CodeRoots, i) + 199 worker_time(ObjCopy, i) + 200 worker_time(Termination, i); 201 202 record_time_secs(Other, i, total_worker_time - worker_known_time); 203 } else { 204 // Make sure all slots are uninitialized since this thread did not seem to have been started 205 ASSERT_PHASE_UNINITIALIZED(GCWorkerEnd); 206 ASSERT_PHASE_UNINITIALIZED(ExtRootScan); 207 ASSERT_PHASE_UNINITIALIZED(ScanHCC); 208 ASSERT_PHASE_UNINITIALIZED(UpdateRS); 209 ASSERT_PHASE_UNINITIALIZED(ScanRS); 210 ASSERT_PHASE_UNINITIALIZED(CodeRoots); 211 ASSERT_PHASE_UNINITIALIZED(ObjCopy); 212 ASSERT_PHASE_UNINITIALIZED(Termination); 213 } 214 } 215 } 216 217 #undef ASSERT_PHASE_UNINITIALIZED 218 219 // record the time a phase took in seconds 220 void G1GCPhaseTimes::record_time_secs(GCParPhases phase, uint worker_i, double secs) { 221 _gc_par_phases[phase]->set(worker_i, secs); 222 } 223 224 // add a number of seconds to a phase 225 void G1GCPhaseTimes::add_time_secs(GCParPhases phase, uint worker_i, double secs) { 226 _gc_par_phases[phase]->add(worker_i, secs); 227 } 228 229 void G1GCPhaseTimes::record_or_add_objcopy_time_secs(uint worker_i, double secs) { 230 if (_gc_par_phases[ObjCopy]->get(worker_i) == _gc_par_phases[ObjCopy]->uninitialized()) { 231 record_time_secs(ObjCopy, worker_i, secs); 232 } else { 233 add_time_secs(ObjCopy, worker_i, secs); 234 } 235 } 236 237 void G1GCPhaseTimes::record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index) { 238 _gc_par_phases[phase]->set_thread_work_item(worker_i, count, index); 239 } 240 241 // return the average time for a phase in milliseconds 242 double G1GCPhaseTimes::average_time_ms(GCParPhases phase) { 243 return _gc_par_phases[phase]->average() * 1000.0; 244 } 245 246 size_t G1GCPhaseTimes::sum_thread_work_items(GCParPhases phase, uint index) { 247 assert(_gc_par_phases[phase]->thread_work_items(index) != NULL, "No sub count"); 248 return _gc_par_phases[phase]->thread_work_items(index)->sum(); 249 } 250 251 template <class T> 252 void G1GCPhaseTimes::details(T* phase, const char* indent) const { 253 LogTarget(Trace, gc, phases, task) lt; 254 if (lt.is_enabled()) { 255 LogStream ls(lt); 256 ls.print("%s", indent); 257 phase->print_details_on(&ls); 258 } 259 } 260 261 void G1GCPhaseTimes::log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const { 262 out->print("%s", Indents[indent]); 263 phase->print_summary_on(out, print_sum); 264 details(phase, Indents[indent]); 265 266 for (uint i = 0; i < phase->MaxThreadWorkItems; i++) { 267 WorkerDataArray<size_t>* work_items = phase->thread_work_items(i); 268 if (work_items != NULL) { 269 out->print("%s", Indents[indent + 1]); 270 work_items->print_summary_on(out, true); 271 details(work_items, Indents[indent + 1]); 272 } 273 } 274 } 275 276 void G1GCPhaseTimes::debug_phase(WorkerDataArray<double>* phase) const { 277 LogTarget(Debug, gc, phases) lt; 278 if (lt.is_enabled()) { 279 ResourceMark rm; 280 LogStream ls(lt); 281 log_phase(phase, 2, &ls, true); 282 } 283 } 284 285 void G1GCPhaseTimes::trace_phase(WorkerDataArray<double>* phase, bool print_sum) const { 286 LogTarget(Trace, gc, phases) lt; 287 if (lt.is_enabled()) { 288 LogStream ls(lt); 289 log_phase(phase, 3, &ls, print_sum); 290 } 291 } 292 293 #define TIME_FORMAT "%.1lfms" 294 295 void G1GCPhaseTimes::info_time(const char* name, double value) const { 296 log_info(gc, phases)("%s%s: " TIME_FORMAT, Indents[1], name, value); 297 } 298 299 void G1GCPhaseTimes::debug_time(const char* name, double value) const { 300 log_debug(gc, phases)("%s%s: " TIME_FORMAT, Indents[2], name, value); 301 } 302 303 void G1GCPhaseTimes::debug_time_for_reference(const char* name, double value) const { 304 LogTarget(Debug, gc, phases) lt; 305 LogTarget(Debug, gc, phases, ref) lt2; 306 307 if (lt.is_enabled()) { 308 LogStream ls(lt); 309 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value); 310 } else if (lt2.is_enabled()) { 311 LogStream ls(lt2); 312 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value); 313 } 314 } 315 316 void G1GCPhaseTimes::trace_time(const char* name, double value) const { 317 log_trace(gc, phases)("%s%s: " TIME_FORMAT, Indents[3], name, value); 318 } 319 320 void G1GCPhaseTimes::trace_count(const char* name, size_t value) const { 321 log_trace(gc, phases)("%s%s: " SIZE_FORMAT, Indents[3], name, value); 322 } 323 324 double G1GCPhaseTimes::print_pre_evacuate_collection_set() const { 325 const double sum_ms = _root_region_scan_wait_time_ms + 326 _recorded_young_cset_choice_time_ms + 327 _recorded_non_young_cset_choice_time_ms + 328 _cur_fast_reclaim_humongous_register_time_ms + 329 _recorded_clear_claimed_marks_time_ms; 330 331 info_time("Pre Evacuate Collection Set", sum_ms); 332 333 if (_root_region_scan_wait_time_ms > 0.0) { 334 debug_time("Root Region Scan Waiting", _root_region_scan_wait_time_ms); 335 } 336 debug_time("Prepare TLABs", _cur_prepare_tlab_time_ms); 337 debug_time("Choose Collection Set", (_recorded_young_cset_choice_time_ms + _recorded_non_young_cset_choice_time_ms)); 338 if (G1EagerReclaimHumongousObjects) { 339 debug_time("Humongous Register", _cur_fast_reclaim_humongous_register_time_ms); 340 trace_count("Humongous Total", _cur_fast_reclaim_humongous_total); 341 trace_count("Humongous Candidate", _cur_fast_reclaim_humongous_candidates); 342 } 343 344 if (_recorded_clear_claimed_marks_time_ms > 0.0) { 345 debug_time("Clear Claimed Marks", _recorded_clear_claimed_marks_time_ms); 346 } 347 return sum_ms; 348 } 349 350 double G1GCPhaseTimes::print_evacuate_collection_set() const { 351 const double sum_ms = _cur_collection_par_time_ms; 352 353 info_time("Evacuate Collection Set", sum_ms); 354 355 trace_phase(_gc_par_phases[GCWorkerStart], false); 356 debug_phase(_gc_par_phases[ExtRootScan]); 357 for (int i = ThreadRoots; i <= SATBFiltering; i++) { 358 trace_phase(_gc_par_phases[i]); 359 } 360 debug_phase(_gc_par_phases[UpdateRS]); 361 if (G1HotCardCache::default_use_cache()) { 362 trace_phase(_gc_par_phases[ScanHCC]); 363 } 364 debug_phase(_gc_par_phases[ScanRS]); 365 debug_phase(_gc_par_phases[CodeRoots]); 366 #if INCLUDE_AOT 367 debug_phase(_gc_par_phases[AOTCodeRoots]); 368 #endif 369 debug_phase(_gc_par_phases[ObjCopy]); 370 debug_phase(_gc_par_phases[Termination]); 371 debug_phase(_gc_par_phases[Other]); 372 debug_phase(_gc_par_phases[GCWorkerTotal]); 373 trace_phase(_gc_par_phases[GCWorkerEnd], false); 374 375 return sum_ms; 376 } 377 378 double G1GCPhaseTimes::print_post_evacuate_collection_set() const { 379 const double evac_fail_handling = _cur_evac_fail_recalc_used + 380 _cur_evac_fail_remove_self_forwards; 381 const double sum_ms = evac_fail_handling + 382 _cur_collection_code_root_fixup_time_ms + 383 _recorded_preserve_cm_referents_time_ms + 384 _cur_ref_proc_time_ms + 385 _cur_weak_ref_proc_time_ms + 386 _cur_ref_enq_time_ms + 387 _cur_clear_ct_time_ms + 388 _recorded_merge_pss_time_ms + 389 _cur_strong_code_root_purge_time_ms + 390 _recorded_redirty_logged_cards_time_ms + 391 _recorded_total_free_cset_time_ms + 392 _cur_fast_reclaim_humongous_time_ms + 393 _cur_expand_heap_time_ms + 394 _cur_string_dedup_fixup_time_ms; 395 396 info_time("Post Evacuate Collection Set", sum_ms); 397 398 debug_time("Code Roots Fixup", _cur_collection_code_root_fixup_time_ms); 399 400 debug_time("Clear Card Table", _cur_clear_ct_time_ms); 401 402 debug_time_for_reference("Reference Processing", _cur_ref_proc_time_ms); 403 _ref_phase_times.print_all_references(2, false); 404 405 debug_time("Weak Processing", _cur_weak_ref_proc_time_ms); 406 407 if (G1StringDedup::is_enabled()) { 408 debug_time("String Dedup Fixup", _cur_string_dedup_fixup_time_ms); 409 debug_phase(_gc_par_phases[StringDedupQueueFixup]); 410 debug_phase(_gc_par_phases[StringDedupTableFixup]); 411 } 412 413 if (G1CollectedHeap::heap()->evacuation_failed()) { 414 debug_time("Evacuation Failure", evac_fail_handling); 415 trace_time("Recalculate Used", _cur_evac_fail_recalc_used); 416 trace_time("Remove Self Forwards",_cur_evac_fail_remove_self_forwards); 417 } 418 419 debug_time_for_reference("Reference Enqueuing", _cur_ref_enq_time_ms); 420 _ref_phase_times.print_enqueue_phase(2, false); 421 422 debug_time("Merge Per-Thread State", _recorded_merge_pss_time_ms); 423 debug_time("Code Roots Purge", _cur_strong_code_root_purge_time_ms); 424 425 debug_time("Redirty Cards", _recorded_redirty_logged_cards_time_ms); 426 trace_phase(_gc_par_phases[RedirtyCards]); 427 #if COMPILER2_OR_JVMCI 428 debug_time("DerivedPointerTable Update", _cur_derived_pointer_table_update_time_ms); 429 #endif 430 431 debug_time("Free Collection Set", _recorded_total_free_cset_time_ms); 432 trace_time("Free Collection Set Serial", _recorded_serial_free_cset_time_ms); 433 trace_phase(_gc_par_phases[YoungFreeCSet]); 434 trace_phase(_gc_par_phases[NonYoungFreeCSet]); 435 436 if (G1EagerReclaimHumongousObjects) { 437 debug_time("Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms); 438 trace_count("Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed); 439 } 440 debug_time("Start New Collection Set", _recorded_start_new_cset_time_ms); 441 if (UseTLAB && ResizeTLAB) { 442 debug_time("Resize TLABs", _cur_resize_tlab_time_ms); 443 } 444 debug_time("Expand Heap After Collection", _cur_expand_heap_time_ms); 445 446 447 return sum_ms; 448 } 449 450 void G1GCPhaseTimes::print_other(double accounted_ms) const { 451 info_time("Other", _gc_pause_time_ms - accounted_ms); 452 } 453 454 void G1GCPhaseTimes::print() { 455 note_gc_end(); 456 457 if (_cur_verify_before_time_ms > 0.0) { 458 debug_time("Verify Before", _cur_verify_before_time_ms); 459 } 460 461 double accounted_ms = 0.0; 462 accounted_ms += print_pre_evacuate_collection_set(); 463 accounted_ms += print_evacuate_collection_set(); 464 accounted_ms += print_post_evacuate_collection_set(); 465 print_other(accounted_ms); 466 467 if (_cur_verify_after_time_ms > 0.0) { 468 debug_time("Verify After", _cur_verify_after_time_ms); 469 } 470 } 471 472 G1EvacPhaseWithTrimTimeTracker::G1EvacPhaseWithTrimTimeTracker(G1ParScanThreadState* pss, Tickspan& total_time, Tickspan& trim_time) : 473 _pss(pss), 474 _start(Ticks::now()), 475 _total_time(total_time), 476 _trim_time(trim_time) { 477 478 assert(_pss->trim_ticks().value() == 0, "Possibly remaining trim ticks left over from previous use"); 479 } 480 481 G1EvacPhaseWithTrimTimeTracker::~G1EvacPhaseWithTrimTimeTracker() { 482 _total_time += (Ticks::now() - _start) - _pss->trim_ticks(); 483 _trim_time += _pss->trim_ticks(); 484 _pss->reset_trim_ticks(); 485 } 486 487 G1GCParPhaseTimesTracker::G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id) : 488 _phase_times(phase_times), _phase(phase), _worker_id(worker_id) { 489 if (_phase_times != NULL) { 490 _start_time = Ticks::now(); 491 } 492 } 493 494 G1GCParPhaseTimesTracker::~G1GCParPhaseTimesTracker() { 495 if (_phase_times != NULL) { 496 _phase_times->record_time_secs(_phase, _worker_id, TicksToTimeHelper::seconds(Ticks::now() - _start_time)); 497 } 498 } 499 500 G1EvacPhaseTimesTracker::G1EvacPhaseTimesTracker(G1GCPhaseTimes* phase_times, 501 G1ParScanThreadState* pss, 502 G1GCPhaseTimes::GCParPhases phase, 503 uint worker_id) : 504 G1GCParPhaseTimesTracker(phase_times, phase, worker_id), 505 _total_time(), 506 _trim_time(), 507 _trim_tracker(pss, _total_time, _trim_time) { 508 } 509 510 G1EvacPhaseTimesTracker::~G1EvacPhaseTimesTracker() { 511 if (_phase_times != NULL) { 512 // Exclude trim time by increasing the start time. 513 _start_time += _trim_time; 514 _phase_times->record_or_add_objcopy_time_secs(_worker_id, TicksToTimeHelper::seconds(_trim_time)); 515 } 516 } 517