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_weak_ref_proc_time_ms = 0.0;
136 _cur_collection_start_sec = 0.0;
137 _root_region_scan_wait_time_ms = 0.0;
138 _external_accounted_time_ms = 0.0;
139 _recorded_clear_claimed_marks_time_ms = 0.0;
140 _recorded_young_cset_choice_time_ms = 0.0;
141 _recorded_non_young_cset_choice_time_ms = 0.0;
142 _recorded_redirty_logged_cards_time_ms = 0.0;
143 _recorded_preserve_cm_referents_time_ms = 0.0;
144 _recorded_merge_pss_time_ms = 0.0;
145 _recorded_start_new_cset_time_ms = 0.0;
146 _recorded_total_free_cset_time_ms = 0.0;
147 _recorded_serial_free_cset_time_ms = 0.0;
148 _cur_fast_reclaim_humongous_time_ms = 0.0;
149 _cur_fast_reclaim_humongous_register_time_ms = 0.0;
150 _cur_fast_reclaim_humongous_total = 0;
151 _cur_fast_reclaim_humongous_candidates = 0;
152 _cur_fast_reclaim_humongous_reclaimed = 0;
153 _cur_verify_before_time_ms = 0.0;
154 _cur_verify_after_time_ms = 0.0;
155
156 for (int i = 0; i < GCParPhasesSentinel; i++) {
157 if (_gc_par_phases[i] != NULL) {
158 _gc_par_phases[i]->reset();
159 }
160 }
161
162 _ref_phase_times.reset();
163 }
164
165 void G1GCPhaseTimes::note_gc_start() {
166 _gc_start_counter = os::elapsed_counter();
167 reset();
168 }
169
170 #define ASSERT_PHASE_UNINITIALIZED(phase) \
171 assert(_gc_par_phases[phase] == NULL || _gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started");
172
173 double G1GCPhaseTimes::worker_time(GCParPhases phase, uint worker) {
174 if (_gc_par_phases[phase] == NULL) {
175 return 0.0;
176 }
177 double value = _gc_par_phases[phase]->get(worker);
178 if (value != WorkerDataArray<double>::uninitialized()) {
179 return value;
180 }
181 return 0.0;
182 }
183
184 void G1GCPhaseTimes::note_gc_end() {
185 _gc_pause_time_ms = TimeHelper::counter_to_millis(os::elapsed_counter() - _gc_start_counter);
186
187 double uninitialized = WorkerDataArray<double>::uninitialized();
188
189 for (uint i = 0; i < _max_gc_threads; i++) {
190 double worker_start = _gc_par_phases[GCWorkerStart]->get(i);
191 if (worker_start != uninitialized) {
192 assert(_gc_par_phases[GCWorkerEnd]->get(i) != uninitialized, "Worker started but not ended.");
193 double total_worker_time = _gc_par_phases[GCWorkerEnd]->get(i) - _gc_par_phases[GCWorkerStart]->get(i);
194 record_time_secs(GCWorkerTotal, i , total_worker_time);
195
196 double worker_known_time =
197 worker_time(ExtRootScan, i)
198 + worker_time(SATBFiltering, i)
199 + worker_time(ScanHCC, i)
200 + worker_time(UpdateRS, i)
201 + worker_time(ScanRS, i)
202 + worker_time(CodeRoots, i)
203 + worker_time(ObjCopy, i)
204 + worker_time(Termination, i);
205
206 record_time_secs(Other, i, total_worker_time - worker_known_time);
207 } else {
208 // Make sure all slots are uninitialized since this thread did not seem to have been started
209 ASSERT_PHASE_UNINITIALIZED(GCWorkerEnd);
210 ASSERT_PHASE_UNINITIALIZED(ExtRootScan);
211 ASSERT_PHASE_UNINITIALIZED(SATBFiltering);
212 ASSERT_PHASE_UNINITIALIZED(ScanHCC);
213 ASSERT_PHASE_UNINITIALIZED(UpdateRS);
214 ASSERT_PHASE_UNINITIALIZED(ScanRS);
215 ASSERT_PHASE_UNINITIALIZED(CodeRoots);
216 ASSERT_PHASE_UNINITIALIZED(ObjCopy);
217 ASSERT_PHASE_UNINITIALIZED(Termination);
218 }
219 }
220 }
221
222 #undef ASSERT_PHASE_UNINITIALIZED
223
224 // record the time a phase took in seconds
225 void G1GCPhaseTimes::record_time_secs(GCParPhases phase, uint worker_i, double secs) {
226 _gc_par_phases[phase]->set(worker_i, secs);
227 }
228
229 // add a number of seconds to a phase
230 void G1GCPhaseTimes::add_time_secs(GCParPhases phase, uint worker_i, double secs) {
231 _gc_par_phases[phase]->add(worker_i, secs);
232 }
233
234 void G1GCPhaseTimes::record_or_add_objcopy_time_secs(uint worker_i, double secs) {
235 if (_gc_par_phases[ObjCopy]->get(worker_i) == _gc_par_phases[ObjCopy]->uninitialized()) {
236 record_time_secs(ObjCopy, worker_i, secs);
237 } else {
238 add_time_secs(ObjCopy, worker_i, secs);
239 }
240 }
241
242 void G1GCPhaseTimes::record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index) {
243 _gc_par_phases[phase]->set_thread_work_item(worker_i, count, index);
244 }
245
246 // return the average time for a phase in milliseconds
247 double G1GCPhaseTimes::average_time_ms(GCParPhases phase) {
248 return _gc_par_phases[phase]->average() * 1000.0;
249 }
250
251 size_t G1GCPhaseTimes::sum_thread_work_items(GCParPhases phase, uint index) {
252 assert(_gc_par_phases[phase]->thread_work_items(index) != NULL, "No sub count");
253 return _gc_par_phases[phase]->thread_work_items(index)->sum();
254 }
255
256 template <class T>
257 void G1GCPhaseTimes::details(T* phase, const char* indent) const {
258 LogTarget(Trace, gc, phases, task) lt;
259 if (lt.is_enabled()) {
260 LogStream ls(lt);
261 ls.print("%s", indent);
262 phase->print_details_on(&ls);
263 }
264 }
265
266 void G1GCPhaseTimes::log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const {
267 out->print("%s", Indents[indent]);
268 phase->print_summary_on(out, print_sum);
269 details(phase, Indents[indent]);
270
271 for (uint i = 0; i < phase->MaxThreadWorkItems; i++) {
272 WorkerDataArray<size_t>* work_items = phase->thread_work_items(i);
273 if (work_items != NULL) {
274 out->print("%s", Indents[indent + 1]);
275 work_items->print_summary_on(out, true);
276 details(work_items, Indents[indent + 1]);
277 }
278 }
279 }
280
281 void G1GCPhaseTimes::debug_phase(WorkerDataArray<double>* phase) const {
282 LogTarget(Debug, gc, phases) lt;
283 if (lt.is_enabled()) {
284 ResourceMark rm;
285 LogStream ls(lt);
286 log_phase(phase, 2, &ls, true);
287 }
288 }
289
290 void G1GCPhaseTimes::trace_phase(WorkerDataArray<double>* phase, bool print_sum) const {
291 LogTarget(Trace, gc, phases) lt;
292 if (lt.is_enabled()) {
293 LogStream ls(lt);
294 log_phase(phase, 3, &ls, print_sum);
295 }
296 }
297
298 #define TIME_FORMAT "%.1lfms"
299
300 void G1GCPhaseTimes::info_time(const char* name, double value) const {
301 log_info(gc, phases)("%s%s: " TIME_FORMAT, Indents[1], name, value);
302 }
303
304 void G1GCPhaseTimes::debug_time(const char* name, double value) const {
305 log_debug(gc, phases)("%s%s: " TIME_FORMAT, Indents[2], name, value);
306 }
307
308 void G1GCPhaseTimes::debug_time_for_reference(const char* name, double value) const {
309 LogTarget(Debug, gc, phases) lt;
310 LogTarget(Debug, gc, phases, ref) lt2;
311
312 if (lt.is_enabled()) {
313 LogStream ls(lt);
314 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value);
315 } else if (lt2.is_enabled()) {
316 LogStream ls(lt2);
317 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value);
318 }
319 }
320
321 void G1GCPhaseTimes::trace_time(const char* name, double value) const {
322 log_trace(gc, phases)("%s%s: " TIME_FORMAT, Indents[3], name, value);
323 }
324
325 void G1GCPhaseTimes::trace_count(const char* name, size_t value) const {
326 log_trace(gc, phases)("%s%s: " SIZE_FORMAT, Indents[3], name, value);
327 }
328
329 double G1GCPhaseTimes::print_pre_evacuate_collection_set() const {
330 const double sum_ms = _root_region_scan_wait_time_ms +
331 _recorded_young_cset_choice_time_ms +
332 _recorded_non_young_cset_choice_time_ms +
333 _cur_fast_reclaim_humongous_register_time_ms +
334 _recorded_clear_claimed_marks_time_ms;
335
336 info_time("Pre Evacuate Collection Set", sum_ms);
337
338 if (_root_region_scan_wait_time_ms > 0.0) {
339 debug_time("Root Region Scan Waiting", _root_region_scan_wait_time_ms);
340 }
341 debug_time("Prepare TLABs", _cur_prepare_tlab_time_ms);
342 debug_time("Choose Collection Set", (_recorded_young_cset_choice_time_ms + _recorded_non_young_cset_choice_time_ms));
343 if (G1EagerReclaimHumongousObjects) {
344 debug_time("Humongous Register", _cur_fast_reclaim_humongous_register_time_ms);
345 trace_count("Humongous Total", _cur_fast_reclaim_humongous_total);
346 trace_count("Humongous Candidate", _cur_fast_reclaim_humongous_candidates);
347 }
348
349 if (_recorded_clear_claimed_marks_time_ms > 0.0) {
350 debug_time("Clear Claimed Marks", _recorded_clear_claimed_marks_time_ms);
351 }
352 return sum_ms;
353 }
354
355 double G1GCPhaseTimes::print_evacuate_collection_set() const {
356 const double sum_ms = _cur_collection_par_time_ms;
357
358 info_time("Evacuate Collection Set", sum_ms);
359
360 trace_phase(_gc_par_phases[GCWorkerStart], false);
361 debug_phase(_gc_par_phases[ExtRootScan]);
362 for (int i = ThreadRoots; i <= SATBFiltering; i++) {
363 trace_phase(_gc_par_phases[i]);
364 }
365 debug_phase(_gc_par_phases[UpdateRS]);
366 if (G1HotCardCache::default_use_cache()) {
367 trace_phase(_gc_par_phases[ScanHCC]);
368 }
369 debug_phase(_gc_par_phases[ScanRS]);
370 debug_phase(_gc_par_phases[CodeRoots]);
371 #if INCLUDE_AOT
372 debug_phase(_gc_par_phases[AOTCodeRoots]);
373 #endif
374 debug_phase(_gc_par_phases[ObjCopy]);
375 debug_phase(_gc_par_phases[Termination]);
376 debug_phase(_gc_par_phases[Other]);
377 debug_phase(_gc_par_phases[GCWorkerTotal]);
378 trace_phase(_gc_par_phases[GCWorkerEnd], false);
379
380 return sum_ms;
381 }
382
383 double G1GCPhaseTimes::print_post_evacuate_collection_set() const {
384 const double evac_fail_handling = _cur_evac_fail_recalc_used +
385 _cur_evac_fail_remove_self_forwards;
386 const double sum_ms = evac_fail_handling +
387 _cur_collection_code_root_fixup_time_ms +
388 _recorded_preserve_cm_referents_time_ms +
389 _cur_ref_proc_time_ms +
390 _cur_weak_ref_proc_time_ms +
391 _cur_ref_enq_time_ms +
392 _cur_clear_ct_time_ms +
393 _recorded_merge_pss_time_ms +
394 _cur_strong_code_root_purge_time_ms +
395 _recorded_redirty_logged_cards_time_ms +
396 _recorded_total_free_cset_time_ms +
397 _cur_fast_reclaim_humongous_time_ms +
398 _cur_expand_heap_time_ms +
399 _cur_string_dedup_fixup_time_ms;
400
401 info_time("Post Evacuate Collection Set", sum_ms);
402
403 debug_time("Code Roots Fixup", _cur_collection_code_root_fixup_time_ms);
404
405 debug_time("Preserve CM Refs", _recorded_preserve_cm_referents_time_ms);
406 trace_phase(_gc_par_phases[PreserveCMReferents]);
407
408 debug_time_for_reference("Reference Processing", _cur_ref_proc_time_ms);
409 _ref_phase_times.print_all_references(2, false);
410
411 debug_time("Weak Processing", _cur_weak_ref_proc_time_ms);
412
413 if (G1StringDedup::is_enabled()) {
414 debug_time("String Dedup Fixup", _cur_string_dedup_fixup_time_ms);
415 debug_phase(_gc_par_phases[StringDedupQueueFixup]);
416 debug_phase(_gc_par_phases[StringDedupTableFixup]);
417 }
418
419 debug_time("Clear Card Table", _cur_clear_ct_time_ms);
420
421 if (G1CollectedHeap::heap()->evacuation_failed()) {
422 debug_time("Evacuation Failure", evac_fail_handling);
423 trace_time("Recalculate Used", _cur_evac_fail_recalc_used);
424 trace_time("Remove Self Forwards",_cur_evac_fail_remove_self_forwards);
425 }
426
427 debug_time_for_reference("Reference Enqueuing", _cur_ref_enq_time_ms);
428 _ref_phase_times.print_enqueue_phase(2, false);
429
430 debug_time("Merge Per-Thread State", _recorded_merge_pss_time_ms);
431 debug_time("Code Roots Purge", _cur_strong_code_root_purge_time_ms);
432
433 debug_time("Redirty Cards", _recorded_redirty_logged_cards_time_ms);
434 trace_phase(_gc_par_phases[RedirtyCards]);
435 #if COMPILER2_OR_JVMCI
436 debug_time("DerivedPointerTable Update", _cur_derived_pointer_table_update_time_ms);
437 #endif
438
439 debug_time("Free Collection Set", _recorded_total_free_cset_time_ms);
440 trace_time("Free Collection Set Serial", _recorded_serial_free_cset_time_ms);
441 trace_phase(_gc_par_phases[YoungFreeCSet]);
442 trace_phase(_gc_par_phases[NonYoungFreeCSet]);
443
444 if (G1EagerReclaimHumongousObjects) {
445 debug_time("Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms);
446 trace_count("Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed);
447 }
448 debug_time("Start New Collection Set", _recorded_start_new_cset_time_ms);
449 if (UseTLAB && ResizeTLAB) {
450 debug_time("Resize TLABs", _cur_resize_tlab_time_ms);
451 }
452 debug_time("Expand Heap After Collection", _cur_expand_heap_time_ms);
453
454
455 return sum_ms;
456 }
457
458 void G1GCPhaseTimes::print_other(double accounted_ms) const {
459 info_time("Other", _gc_pause_time_ms - accounted_ms);
460 }
461
462 void G1GCPhaseTimes::print() {
463 note_gc_end();
464
465 if (_cur_verify_before_time_ms > 0.0) {
466 debug_time("Verify Before", _cur_verify_before_time_ms);
467 }
468
469 double accounted_ms = 0.0;
470 accounted_ms += print_pre_evacuate_collection_set();
471 accounted_ms += print_evacuate_collection_set();
472 accounted_ms += print_post_evacuate_collection_set();
473 print_other(accounted_ms);
474
475 if (_cur_verify_after_time_ms > 0.0) {
476 debug_time("Verify After", _cur_verify_after_time_ms);
477 }
478 }
479
480 G1EvacPhaseWithTrimTimeTracker::G1EvacPhaseWithTrimTimeTracker(G1ParScanThreadState* pss, Tickspan& total_time, Tickspan& trim_time) :
481 _pss(pss),
482 _start(Ticks::now()),
483 _total_time(total_time),
484 _trim_time(trim_time) {
485
486 assert(_pss->trim_ticks().value() == 0, "Possibly remaining trim ticks left over from previous use");
487 }
488
489 G1EvacPhaseWithTrimTimeTracker::~G1EvacPhaseWithTrimTimeTracker() {
490 _total_time += (Ticks::now() - _start) - _pss->trim_ticks();
491 _trim_time += _pss->trim_ticks();
492 _pss->reset_trim_ticks();
493 }
494
495 G1GCParPhaseTimesTracker::G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id) :
496 _phase_times(phase_times), _phase(phase), _worker_id(worker_id) {
497 if (_phase_times != NULL) {
498 _start_time = Ticks::now();
499 }
500 }
501
502 G1GCParPhaseTimesTracker::~G1GCParPhaseTimesTracker() {
503 if (_phase_times != NULL) {
504 _phase_times->record_time_secs(_phase, _worker_id, TicksToTimeHelper::seconds(Ticks::now() - _start_time));
505 }
506 }
507
508 G1EvacPhaseTimesTracker::G1EvacPhaseTimesTracker(G1GCPhaseTimes* phase_times,
509 G1ParScanThreadState* pss,
510 G1GCPhaseTimes::GCParPhases phase,
511 uint worker_id) :
512 G1GCParPhaseTimesTracker(phase_times, phase, worker_id),
513 _total_time(),
514 _trim_time(),
515 _trim_tracker(pss, _total_time, _trim_time) {
516 }
517
518 G1EvacPhaseTimesTracker::~G1EvacPhaseTimesTracker() {
519 if (_phase_times != NULL) {
520 // Exclude trim time by increasing the start time.
521 _start_time += _trim_time;
522 _phase_times->record_or_add_objcopy_time_secs(_worker_id, TicksToTimeHelper::seconds(_trim_time));
523 }
524 }
525