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 _gc_par_phases[PreserveCMReferents] = new WorkerDataArray<double>(max_gc_threads, "Parallel Preserve CM Refs (ms):"); 117 118 reset(); 119 } 120 121 void G1GCPhaseTimes::reset() { 122 _cur_collection_par_time_ms = 0.0; 123 _cur_collection_code_root_fixup_time_ms = 0.0; 124 _cur_strong_code_root_purge_time_ms = 0.0; 125 _cur_evac_fail_recalc_used = 0.0; 126 _cur_evac_fail_remove_self_forwards = 0.0; 127 _cur_string_dedup_fixup_time_ms = 0.0; 128 _cur_prepare_tlab_time_ms = 0.0; 129 _cur_resize_tlab_time_ms = 0.0; 130 _cur_derived_pointer_table_update_time_ms = 0.0; 131 _cur_clear_ct_time_ms = 0.0; 132 _cur_expand_heap_time_ms = 0.0; 133 _cur_ref_proc_time_ms = 0.0; 134 _cur_ref_enq_time_ms = 0.0; 135 _cur_collection_start_sec = 0.0; 136 _root_region_scan_wait_time_ms = 0.0; 137 _external_accounted_time_ms = 0.0; 138 _recorded_clear_claimed_marks_time_ms = 0.0; 139 _recorded_young_cset_choice_time_ms = 0.0; 140 _recorded_non_young_cset_choice_time_ms = 0.0; 141 _recorded_redirty_logged_cards_time_ms = 0.0; 142 _recorded_preserve_cm_referents_time_ms = 0.0; 143 _recorded_merge_pss_time_ms = 0.0; 144 _recorded_start_new_cset_time_ms = 0.0; 145 _recorded_total_free_cset_time_ms = 0.0; 146 _recorded_serial_free_cset_time_ms = 0.0; 147 _cur_fast_reclaim_humongous_time_ms = 0.0; 148 _cur_fast_reclaim_humongous_register_time_ms = 0.0; 149 _cur_fast_reclaim_humongous_total = 0; 150 _cur_fast_reclaim_humongous_candidates = 0; 151 _cur_fast_reclaim_humongous_reclaimed = 0; 152 _cur_verify_before_time_ms = 0.0; 153 _cur_verify_after_time_ms = 0.0; 154 155 for (int i = 0; i < GCParPhasesSentinel; i++) { 156 if (_gc_par_phases[i] != NULL) { 157 _gc_par_phases[i]->reset(); 158 } 159 } 160 161 _ref_phase_times.reset(); 162 } 163 164 void G1GCPhaseTimes::note_gc_start() { 165 _gc_start_counter = os::elapsed_counter(); 166 reset(); 167 } 168 169 #define ASSERT_PHASE_UNINITIALIZED(phase) \ 170 assert(_gc_par_phases[phase] == NULL || _gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started"); 171 172 double G1GCPhaseTimes::worker_time(GCParPhases phase, uint worker) { 173 if (_gc_par_phases[phase] == NULL) { 174 return 0.0; 175 } 176 double value = _gc_par_phases[phase]->get(worker); 177 if (value != WorkerDataArray<double>::uninitialized()) { 178 return value; 179 } 180 return 0.0; 181 } 182 183 void G1GCPhaseTimes::note_gc_end() { 184 _gc_pause_time_ms = TimeHelper::counter_to_millis(os::elapsed_counter() - _gc_start_counter); 185 186 double uninitialized = WorkerDataArray<double>::uninitialized(); 187 188 for (uint i = 0; i < _max_gc_threads; i++) { 189 double worker_start = _gc_par_phases[GCWorkerStart]->get(i); 190 if (worker_start != uninitialized) { 191 assert(_gc_par_phases[GCWorkerEnd]->get(i) != uninitialized, "Worker started but not ended."); 192 double total_worker_time = _gc_par_phases[GCWorkerEnd]->get(i) - _gc_par_phases[GCWorkerStart]->get(i); 193 record_time_secs(GCWorkerTotal, i , total_worker_time); 194 195 double worker_known_time = 196 worker_time(ExtRootScan, i) 197 + worker_time(SATBFiltering, i) 198 + worker_time(ScanHCC, i) 199 + worker_time(UpdateRS, i) 200 + worker_time(ScanRS, i) 201 + worker_time(CodeRoots, i) 202 + worker_time(ObjCopy, i) 203 + worker_time(Termination, i); 204 205 record_time_secs(Other, i, total_worker_time - worker_known_time); 206 } else { 207 // Make sure all slots are uninitialized since this thread did not seem to have been started 208 ASSERT_PHASE_UNINITIALIZED(GCWorkerEnd); 209 ASSERT_PHASE_UNINITIALIZED(ExtRootScan); 210 ASSERT_PHASE_UNINITIALIZED(SATBFiltering); 211 ASSERT_PHASE_UNINITIALIZED(ScanHCC); 212 ASSERT_PHASE_UNINITIALIZED(UpdateRS); 213 ASSERT_PHASE_UNINITIALIZED(ScanRS); 214 ASSERT_PHASE_UNINITIALIZED(CodeRoots); 215 ASSERT_PHASE_UNINITIALIZED(ObjCopy); 216 ASSERT_PHASE_UNINITIALIZED(Termination); 217 } 218 } 219 } 220 221 #undef ASSERT_PHASE_UNINITIALIZED 222 223 // record the time a phase took in seconds 224 void G1GCPhaseTimes::record_time_secs(GCParPhases phase, uint worker_i, double secs) { 225 _gc_par_phases[phase]->set(worker_i, secs); 226 } 227 228 // add a number of seconds to a phase 229 void G1GCPhaseTimes::add_time_secs(GCParPhases phase, uint worker_i, double secs) { 230 _gc_par_phases[phase]->add(worker_i, secs); 231 } 232 233 void G1GCPhaseTimes::record_or_add_objcopy_time_secs(uint worker_i, double secs) { 234 if (_gc_par_phases[ObjCopy]->get(worker_i) == _gc_par_phases[ObjCopy]->uninitialized()) { 235 record_time_secs(ObjCopy, worker_i, secs); 236 } else { 237 add_time_secs(ObjCopy, worker_i, secs); 238 } 239 } 240 241 void G1GCPhaseTimes::record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index) { 242 _gc_par_phases[phase]->set_thread_work_item(worker_i, count, index); 243 } 244 245 // return the average time for a phase in milliseconds 246 double G1GCPhaseTimes::average_time_ms(GCParPhases phase) { 247 return _gc_par_phases[phase]->average() * 1000.0; 248 } 249 250 size_t G1GCPhaseTimes::sum_thread_work_items(GCParPhases phase, uint index) { 251 assert(_gc_par_phases[phase]->thread_work_items(index) != NULL, "No sub count"); 252 return _gc_par_phases[phase]->thread_work_items(index)->sum(); 253 } 254 255 template <class T> 256 void G1GCPhaseTimes::details(T* phase, const char* indent) const { 257 LogTarget(Trace, gc, phases, task) lt; 258 if (lt.is_enabled()) { 259 LogStream ls(lt); 260 ls.print("%s", indent); 261 phase->print_details_on(&ls); 262 } 263 } 264 265 void G1GCPhaseTimes::log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const { 266 out->print("%s", Indents[indent]); 267 phase->print_summary_on(out, print_sum); 268 details(phase, Indents[indent]); 269 270 for (uint i = 0; i < phase->MaxThreadWorkItems; i++) { 271 WorkerDataArray<size_t>* work_items = phase->thread_work_items(i); 272 if (work_items != NULL) { 273 out->print("%s", Indents[indent + 1]); 274 work_items->print_summary_on(out, true); 275 details(work_items, Indents[indent + 1]); 276 } 277 } 278 } 279 280 void G1GCPhaseTimes::debug_phase(WorkerDataArray<double>* phase) const { 281 LogTarget(Debug, gc, phases) lt; 282 if (lt.is_enabled()) { 283 ResourceMark rm; 284 LogStream ls(lt); 285 log_phase(phase, 2, &ls, true); 286 } 287 } 288 289 void G1GCPhaseTimes::trace_phase(WorkerDataArray<double>* phase, bool print_sum) const { 290 LogTarget(Trace, gc, phases) lt; 291 if (lt.is_enabled()) { 292 LogStream ls(lt); 293 log_phase(phase, 3, &ls, print_sum); 294 } 295 } 296 297 #define TIME_FORMAT "%.1lfms" 298 299 void G1GCPhaseTimes::info_time(const char* name, double value) const { 300 log_info(gc, phases)("%s%s: " TIME_FORMAT, Indents[1], name, value); 301 } 302 303 void G1GCPhaseTimes::debug_time(const char* name, double value) const { 304 log_debug(gc, phases)("%s%s: " TIME_FORMAT, Indents[2], name, value); 305 } 306 307 void G1GCPhaseTimes::debug_time_for_reference(const char* name, double value) const { 308 LogTarget(Debug, gc, phases) lt; 309 LogTarget(Debug, gc, phases, ref) lt2; 310 311 if (lt.is_enabled()) { 312 LogStream ls(lt); 313 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value); 314 } else if (lt2.is_enabled()) { 315 LogStream ls(lt2); 316 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value); 317 } 318 } 319 320 void G1GCPhaseTimes::trace_time(const char* name, double value) const { 321 log_trace(gc, phases)("%s%s: " TIME_FORMAT, Indents[3], name, value); 322 } 323 324 void G1GCPhaseTimes::trace_count(const char* name, size_t value) const { 325 log_trace(gc, phases)("%s%s: " SIZE_FORMAT, Indents[3], name, value); 326 } 327 328 double G1GCPhaseTimes::print_pre_evacuate_collection_set() const { 329 const double sum_ms = _root_region_scan_wait_time_ms + 330 _recorded_young_cset_choice_time_ms + 331 _recorded_non_young_cset_choice_time_ms + 332 _cur_fast_reclaim_humongous_register_time_ms + 333 _recorded_clear_claimed_marks_time_ms; 334 335 info_time("Pre Evacuate Collection Set", sum_ms); 336 337 if (_root_region_scan_wait_time_ms > 0.0) { 338 debug_time("Root Region Scan Waiting", _root_region_scan_wait_time_ms); 339 } 340 debug_time("Prepare TLABs", _cur_prepare_tlab_time_ms); 341 debug_time("Choose Collection Set", (_recorded_young_cset_choice_time_ms + _recorded_non_young_cset_choice_time_ms)); 342 if (G1EagerReclaimHumongousObjects) { 343 debug_time("Humongous Register", _cur_fast_reclaim_humongous_register_time_ms); 344 trace_count("Humongous Total", _cur_fast_reclaim_humongous_total); 345 trace_count("Humongous Candidate", _cur_fast_reclaim_humongous_candidates); 346 } 347 348 if (_recorded_clear_claimed_marks_time_ms > 0.0) { 349 debug_time("Clear Claimed Marks", _recorded_clear_claimed_marks_time_ms); 350 } 351 return sum_ms; 352 } 353 354 double G1GCPhaseTimes::print_evacuate_collection_set() const { 355 const double sum_ms = _cur_collection_par_time_ms; 356 357 info_time("Evacuate Collection Set", sum_ms); 358 359 trace_phase(_gc_par_phases[GCWorkerStart], false); 360 debug_phase(_gc_par_phases[ExtRootScan]); 361 for (int i = ThreadRoots; i <= SATBFiltering; i++) { 362 trace_phase(_gc_par_phases[i]); 363 } 364 debug_phase(_gc_par_phases[UpdateRS]); 365 if (G1HotCardCache::default_use_cache()) { 366 trace_phase(_gc_par_phases[ScanHCC]); 367 } 368 debug_phase(_gc_par_phases[ScanRS]); 369 debug_phase(_gc_par_phases[CodeRoots]); 370 #if INCLUDE_AOT 371 debug_phase(_gc_par_phases[AOTCodeRoots]); 372 #endif 373 debug_phase(_gc_par_phases[ObjCopy]); 374 debug_phase(_gc_par_phases[Termination]); 375 debug_phase(_gc_par_phases[Other]); 376 debug_phase(_gc_par_phases[GCWorkerTotal]); 377 trace_phase(_gc_par_phases[GCWorkerEnd], false); 378 379 return sum_ms; 380 } 381 382 double G1GCPhaseTimes::print_post_evacuate_collection_set() const { 383 const double evac_fail_handling = _cur_evac_fail_recalc_used + 384 _cur_evac_fail_remove_self_forwards; 385 const double sum_ms = evac_fail_handling + 386 _cur_collection_code_root_fixup_time_ms + 387 _recorded_preserve_cm_referents_time_ms + 388 _cur_ref_proc_time_ms + 389 _cur_ref_enq_time_ms + 390 _cur_clear_ct_time_ms + 391 _recorded_merge_pss_time_ms + 392 _cur_strong_code_root_purge_time_ms + 393 _recorded_redirty_logged_cards_time_ms + 394 _recorded_total_free_cset_time_ms + 395 _cur_fast_reclaim_humongous_time_ms + 396 _cur_expand_heap_time_ms + 397 _cur_string_dedup_fixup_time_ms; 398 399 info_time("Post Evacuate Collection Set", sum_ms); 400 401 debug_time("Code Roots Fixup", _cur_collection_code_root_fixup_time_ms); 402 403 debug_time("Preserve CM Refs", _recorded_preserve_cm_referents_time_ms); 404 trace_phase(_gc_par_phases[PreserveCMReferents]); 405 406 debug_time_for_reference("Reference Processing", _cur_ref_proc_time_ms); 407 _ref_phase_times.print_all_references(2, false); 408 409 if (G1StringDedup::is_enabled()) { 410 debug_time("String Dedup Fixup", _cur_string_dedup_fixup_time_ms); 411 debug_phase(_gc_par_phases[StringDedupQueueFixup]); 412 debug_phase(_gc_par_phases[StringDedupTableFixup]); 413 } 414 415 debug_time("Clear Card Table", _cur_clear_ct_time_ms); 416 417 if (G1CollectedHeap::heap()->evacuation_failed()) { 418 debug_time("Evacuation Failure", evac_fail_handling); 419 trace_time("Recalculate Used", _cur_evac_fail_recalc_used); 420 trace_time("Remove Self Forwards",_cur_evac_fail_remove_self_forwards); 421 } 422 423 debug_time_for_reference("Reference Enqueuing", _cur_ref_enq_time_ms); 424 _ref_phase_times.print_enqueue_phase(2, false); 425 426 debug_time("Merge Per-Thread State", _recorded_merge_pss_time_ms); 427 debug_time("Code Roots Purge", _cur_strong_code_root_purge_time_ms); 428 429 debug_time("Redirty Cards", _recorded_redirty_logged_cards_time_ms); 430 trace_phase(_gc_par_phases[RedirtyCards]); 431 #if COMPILER2_OR_JVMCI 432 debug_time("DerivedPointerTable Update", _cur_derived_pointer_table_update_time_ms); 433 #endif 434 435 debug_time("Free Collection Set", _recorded_total_free_cset_time_ms); 436 trace_time("Free Collection Set Serial", _recorded_serial_free_cset_time_ms); 437 trace_phase(_gc_par_phases[YoungFreeCSet]); 438 trace_phase(_gc_par_phases[NonYoungFreeCSet]); 439 440 if (G1EagerReclaimHumongousObjects) { 441 debug_time("Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms); 442 trace_count("Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed); 443 } 444 debug_time("Start New Collection Set", _recorded_start_new_cset_time_ms); 445 if (UseTLAB && ResizeTLAB) { 446 debug_time("Resize TLABs", _cur_resize_tlab_time_ms); 447 } 448 debug_time("Expand Heap After Collection", _cur_expand_heap_time_ms); 449 450 451 return sum_ms; 452 } 453 454 void G1GCPhaseTimes::print_other(double accounted_ms) const { 455 info_time("Other", _gc_pause_time_ms - accounted_ms); 456 } 457 458 void G1GCPhaseTimes::print() { 459 note_gc_end(); 460 461 if (_cur_verify_before_time_ms > 0.0) { 462 debug_time("Verify Before", _cur_verify_before_time_ms); 463 } 464 465 double accounted_ms = 0.0; 466 accounted_ms += print_pre_evacuate_collection_set(); 467 accounted_ms += print_evacuate_collection_set(); 468 accounted_ms += print_post_evacuate_collection_set(); 469 print_other(accounted_ms); 470 471 if (_cur_verify_after_time_ms > 0.0) { 472 debug_time("Verify After", _cur_verify_after_time_ms); 473 } 474 } 475 476 G1EvacPhaseWithTrimTimeTracker::G1EvacPhaseWithTrimTimeTracker(G1ParScanThreadState* pss, Tickspan& total_time, Tickspan& trim_time) : 477 _pss(pss), 478 _start(Ticks::now()), 479 _total_time(total_time), 480 _trim_time(trim_time) { 481 482 assert(_pss->trim_ticks().value() == 0, "Possibly remaining trim ticks left over from previous use"); 483 } 484 485 G1EvacPhaseWithTrimTimeTracker::~G1EvacPhaseWithTrimTimeTracker() { 486 _total_time += (Ticks::now() - _start) + _pss->trim_ticks(); 487 _trim_time += _pss->trim_ticks(); 488 _pss->reset_trim_ticks(); 489 } 490 491 G1GCParPhaseTimesTracker::G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id) : 492 _phase_times(phase_times), _phase(phase), _worker_id(worker_id) { 493 if (_phase_times != NULL) { 494 _start_time = os::elapsedTime(); 495 } 496 } 497 498 G1GCParPhaseTimesTracker::~G1GCParPhaseTimesTracker() { 499 if (_phase_times != NULL) { 500 _phase_times->record_time_secs(_phase, _worker_id, os::elapsedTime() - _start_time); 501 } 502 } 503 504 G1EvacPhaseTimesTracker::G1EvacPhaseTimesTracker(G1GCPhaseTimes* phase_times, 505 G1ParScanThreadState* pss, 506 G1GCPhaseTimes::GCParPhases phase, 507 uint worker_id) : 508 G1GCParPhaseTimesTracker(phase_times, phase, worker_id), 509 _total_time(), 510 _trim_time(), 511 _trim_tracker(pss, _total_time, _trim_time) { 512 } 513 514 G1EvacPhaseTimesTracker::~G1EvacPhaseTimesTracker() { 515 if (_phase_times != NULL) { 516 _start_time += TicksToTimeHelper::seconds(_trim_time); 517 _phase_times->record_or_add_objcopy_time_secs(_worker_id, TicksToTimeHelper::seconds(_trim_time)); 518 } 519 } 520