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