1 /*
2 * Copyright (c) 2013, 2014 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_implementation/g1/g1CollectedHeap.inline.hpp"
27 #include "gc_implementation/g1/g1GCPhaseTimes.hpp"
28 #include "gc_implementation/g1/g1Log.hpp"
29 #include "gc_implementation/g1/g1StringDedup.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/os.hpp"
32
33 // Helper class for avoiding interleaved logging
34 class LineBuffer: public StackObj {
35
36 private:
37 static const int BUFFER_LEN = 1024;
38 static const int INDENT_CHARS = 3;
39 char _buffer[BUFFER_LEN];
40 int _indent_level;
41 int _cur;
42
43 void vappend(const char* format, va_list ap) ATTRIBUTE_PRINTF(2, 0) {
44 int res = vsnprintf(&_buffer[_cur], BUFFER_LEN - _cur, format, ap);
45 if (res != -1) {
46 _cur += res;
47 } else {
48 DEBUG_ONLY(warning("buffer too small in LineBuffer");)
49 _buffer[BUFFER_LEN -1] = 0;
50 _cur = BUFFER_LEN; // vsnprintf above should not add to _buffer if we are called again
51 }
52 }
53
54 public:
55 explicit LineBuffer(int indent_level): _indent_level(indent_level), _cur(0) {
56 for (; (_cur < BUFFER_LEN && _cur < (_indent_level * INDENT_CHARS)); _cur++) {
57 _buffer[_cur] = ' ';
58 }
59 }
60
61 #ifndef PRODUCT
62 ~LineBuffer() {
63 assert(_cur == _indent_level * INDENT_CHARS, "pending data in buffer - append_and_print_cr() not called?");
64 }
65 #endif
66
67 void append(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
68 va_list ap;
69 va_start(ap, format);
70 vappend(format, ap);
71 va_end(ap);
72 }
73
74 void print_cr() {
75 gclog_or_tty->print_cr("%s", _buffer);
76 _cur = _indent_level * INDENT_CHARS;
77 }
78
79 void append_and_print_cr(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
80 va_list ap;
81 va_start(ap, format);
82 vappend(format, ap);
83 va_end(ap);
84 print_cr();
85 }
86 };
87
88 template <class T>
89 class WorkerDataArray : public CHeapObj<mtGC> {
90 friend class G1GCParPhasePrinter;
91 T* _data;
92 uint _length;
93 const char* _title;
94 bool _print_sum;
95 int _log_level;
96 uint _indent_level;
97 bool _enabled;
98
99 WorkerDataArray<size_t>* _thread_work_items;
100
101 NOT_PRODUCT(T uninitialized();)
102
103 // We are caching the sum and average to only have to calculate them once.
104 // This is not done in an MT-safe way. It is intended to allow single
105 // threaded code to call sum() and average() multiple times in any order
106 // without having to worry about the cost.
107 bool _has_new_data;
108 T _sum;
109 T _min;
110 T _max;
111 double _average;
112
113 public:
114 WorkerDataArray(uint length, const char* title, bool print_sum, int log_level, uint indent_level) :
115 _title(title), _length(0), _print_sum(print_sum), _log_level(log_level), _indent_level(indent_level),
116 _has_new_data(true), _thread_work_items(NULL), _enabled(true) {
117 assert(length > 0, "Must have some workers to store data for");
118 _length = length;
119 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
120 }
121
122 ~WorkerDataArray() {
123 FREE_C_HEAP_ARRAY(T, _data);
124 }
125
126 void link_thread_work_items(WorkerDataArray<size_t>* thread_work_items) {
127 _thread_work_items = thread_work_items;
128 }
129
130 WorkerDataArray<size_t>* thread_work_items() { return _thread_work_items; }
131
132 void set(uint worker_i, T value) {
133 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
134 assert(_data[worker_i] == WorkerDataArray<T>::uninitialized(), err_msg("Overwriting data for worker %d in %s", worker_i, _title));
135 _data[worker_i] = value;
136 _has_new_data = true;
137 }
138
139 void set_thread_work_item(uint worker_i, size_t value) {
140 assert(_thread_work_items != NULL, "No sub count");
141 _thread_work_items->set(worker_i, value);
142 }
143
144 T get(uint worker_i) {
145 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
146 assert(_data[worker_i] != WorkerDataArray<T>::uninitialized(), err_msg("No data added for worker %d", worker_i));
147 return _data[worker_i];
148 }
149
150 void add(uint worker_i, T value) {
151 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
152 assert(_data[worker_i] != WorkerDataArray<T>::uninitialized(), err_msg("No data to add to for worker %d", worker_i));
153 _data[worker_i] += value;
154 _has_new_data = true;
155 }
156
157 double average(){
158 calculate_totals();
159 return _average;
160 }
161
162 T sum() {
163 calculate_totals();
164 return _sum;
165 }
166
167 T minimum() {
168 calculate_totals();
169 return _min;
170 }
171
172 T maximum() {
173 calculate_totals();
174 return _max;
175 }
176
177 void reset() PRODUCT_RETURN;
178 void verify() PRODUCT_RETURN;
179
180 void set_enabled(bool enabled) { _enabled = enabled; }
181
182 int log_level() { return _log_level; }
183
184 private:
185
186 void calculate_totals(){
187 if (!_has_new_data) {
188 return;
189 }
190
191 _sum = (T)0;
192 _min = _data[0];
193 _max = _min;
194 for (uint i = 0; i < _length; ++i) {
195 T val = _data[i];
196 _sum += val;
197 _min = MIN2(_min, val);
198 _max = MAX2(_max, val);
199 }
200 _average = (double)_sum / (double)_length;
201 _has_new_data = false;
202 }
203 };
204
205
206 #ifndef PRODUCT
207
208 template <>
209 size_t WorkerDataArray<size_t>::uninitialized() {
210 return (size_t)-1;
211 }
212
213 template <>
214 double WorkerDataArray<double>::uninitialized() {
215 return -1.0;
216 }
217
218 template <class T>
219 void WorkerDataArray<T>::reset() {
220 for (uint i = 0; i < _length; i++) {
221 _data[i] = WorkerDataArray<T>::uninitialized();
222 }
223 if (_thread_work_items != NULL) {
224 _thread_work_items->reset();
225 }
226 }
227
228 template <class T>
229 void WorkerDataArray<T>::verify() {
230 if (!_enabled) {
231 return;
232 }
233
234 for (uint i = 0; i < _length; i++) {
235 assert(_data[i] != WorkerDataArray<T>::uninitialized(),
236 err_msg("Invalid data for worker %u in '%s'", i, _title));
237 }
238 if (_thread_work_items != NULL) {
239 _thread_work_items->verify();
240 }
241 }
242
243 #endif
244
245 G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads) :
246 _max_gc_threads(max_gc_threads)
247 {
248 assert(max_gc_threads > 0, "Must have some GC threads");
249
250 _gc_par_phases[GCWorkerStart] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Start (ms)", false, G1Log::LevelFiner, 2);
251 _gc_par_phases[ExtRootScan] = new WorkerDataArray<double>(max_gc_threads, "Ext Root Scanning (ms)", true, G1Log::LevelFiner, 2);
252 _gc_par_phases[SATBFiltering] = new WorkerDataArray<double>(max_gc_threads, "SATB Filtering (ms)", true, G1Log::LevelFiner, 2);
253 _gc_par_phases[UpdateRS] = new WorkerDataArray<double>(max_gc_threads, "Update RS (ms)", true, G1Log::LevelFiner, 2);
254 _gc_par_phases[ScanRS] = new WorkerDataArray<double>(max_gc_threads, "Scan RS (ms)", true, G1Log::LevelFiner, 2);
255 _gc_par_phases[CodeRoots] = new WorkerDataArray<double>(max_gc_threads, "Code Root Scanning (ms)", true, G1Log::LevelFiner, 2);
256 _gc_par_phases[ObjCopy] = new WorkerDataArray<double>(max_gc_threads, "Object Copy (ms)", true, G1Log::LevelFiner, 2);
257 _gc_par_phases[Termination] = new WorkerDataArray<double>(max_gc_threads, "Termination (ms)", true, G1Log::LevelFiner, 2);
258 _gc_par_phases[GCWorkerTotal] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Total (ms)", true, G1Log::LevelFiner, 2);
259 _gc_par_phases[GCWorkerEnd] = new WorkerDataArray<double>(max_gc_threads, "GC Worker End (ms)", false, G1Log::LevelFiner, 2);
260 _gc_par_phases[Other] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Other (ms)", true, G1Log::LevelFiner, 2);
261
262 _update_rs_processed_buffers = new WorkerDataArray<size_t>(max_gc_threads, "Processed Buffers", true, G1Log::LevelFiner, 3);
263 _gc_par_phases[UpdateRS]->link_thread_work_items(_update_rs_processed_buffers);
264
265 _termination_attempts = new WorkerDataArray<size_t>(max_gc_threads, "Termination Attempts", true, G1Log::LevelFinest, 3);
266 _gc_par_phases[Termination]->link_thread_work_items(_termination_attempts);
267
268 _gc_par_phases[StringDedupQueueFixup] = new WorkerDataArray<double>(max_gc_threads, "Queue Fixup (ms)", true, G1Log::LevelFiner, 2);
269 _gc_par_phases[StringDedupTableFixup] = new WorkerDataArray<double>(max_gc_threads, "Table Fixup (ms)", true, G1Log::LevelFiner, 2);
270
271 _gc_par_phases[RedirtyCards] = new WorkerDataArray<double>(max_gc_threads, "Parallel Redirty", true, G1Log::LevelFinest, 3);
272 _redirtied_cards = new WorkerDataArray<size_t>(max_gc_threads, "Redirtied Cards", true, G1Log::LevelFinest, 3);
273 _gc_par_phases[RedirtyCards]->link_thread_work_items(_redirtied_cards);
274 }
275
276 void G1GCPhaseTimes::note_gc_start(uint active_gc_threads, bool mark_in_progress) {
277 assert(active_gc_threads > 0, "The number of threads must be > 0");
278 assert(active_gc_threads <= _max_gc_threads, "The number of active threads must be <= the max number of threads");
279 _active_gc_threads = active_gc_threads;
280
281 for (int i = 0; i < GCParPhasesSentinel; i++) {
282 _gc_par_phases[i]->reset();
283 }
284
285 _gc_par_phases[SATBFiltering]->set_enabled(mark_in_progress);
286
287 _gc_par_phases[StringDedupQueueFixup]->set_enabled(G1StringDedup::is_enabled());
288 _gc_par_phases[StringDedupTableFixup]->set_enabled(G1StringDedup::is_enabled());
289 }
290
291 void G1GCPhaseTimes::note_gc_end() {
292 for (uint i = 0; i < _active_gc_threads; i++) {
293 double worker_time = _gc_par_phases[GCWorkerEnd]->get(i) - _gc_par_phases[GCWorkerStart]->get(i);
294 record_time_secs(GCWorkerTotal, i , worker_time);
295
296 double worker_known_time =
297 _gc_par_phases[ExtRootScan]->get(i) +
298 _gc_par_phases[SATBFiltering]->get(i) +
299 _gc_par_phases[UpdateRS]->get(i) +
300 _gc_par_phases[ScanRS]->get(i) +
301 _gc_par_phases[CodeRoots]->get(i) +
302 _gc_par_phases[ObjCopy]->get(i) +
303 _gc_par_phases[Termination]->get(i);
304
305 record_time_secs(Other, i, worker_time - worker_known_time);
306 }
307
308 for (int i = 0; i < GCParPhasesSentinel; i++) {
309 _gc_par_phases[i]->verify();
310 }
311 }
312
313 void G1GCPhaseTimes::print_stats(int level, const char* str, double value) {
314 LineBuffer(level).append_and_print_cr("[%s: %.1lf ms]", str, value);
315 }
316
317 void G1GCPhaseTimes::print_stats(int level, const char* str, size_t value) {
318 LineBuffer(level).append_and_print_cr("[%s: "SIZE_FORMAT"]", str, value);
319 }
320
321 void G1GCPhaseTimes::print_stats(int level, const char* str, double value, uint workers) {
322 LineBuffer(level).append_and_print_cr("[%s: %.1lf ms, GC Workers: %u]", str, value, workers);
323 }
324
325 double G1GCPhaseTimes::accounted_time_ms() {
326 // Subtract the root region scanning wait time. It's initialized to
327 // zero at the start of the pause.
328 double misc_time_ms = _root_region_scan_wait_time_ms;
329
330 misc_time_ms += _cur_collection_par_time_ms;
331
332 // Now subtract the time taken to fix up roots in generated code
333 misc_time_ms += _cur_collection_code_root_fixup_time_ms;
334
335 // Strong code root purge time
336 misc_time_ms += _cur_strong_code_root_purge_time_ms;
337
338 if (G1StringDedup::is_enabled()) {
339 // String dedup fixup time
340 misc_time_ms += _cur_string_dedup_fixup_time_ms;
341 }
342
343 // Subtract the time taken to clean the card table from the
344 // current value of "other time"
345 misc_time_ms += _cur_clear_ct_time_ms;
346
347 return misc_time_ms;
348 }
349
350 // record the time a phase took in seconds
351 void G1GCPhaseTimes::record_time_secs(GCParPhases phase, uint worker_i, double secs) {
352 _gc_par_phases[phase]->set(worker_i, secs);
353 }
354
355 // add a number of seconds to a phase
356 void G1GCPhaseTimes::add_time_secs(GCParPhases phase, uint worker_i, double secs) {
357 _gc_par_phases[phase]->add(worker_i, secs);
358 }
359
360 void G1GCPhaseTimes::record_thread_work_item(GCParPhases phase, uint worker_i, size_t count) {
361 _gc_par_phases[phase]->set_thread_work_item(worker_i, count);
362 }
363
364 // return the average time for a phase in milliseconds
365 double G1GCPhaseTimes::average_time_ms(GCParPhases phase) {
366 return _gc_par_phases[phase]->average() * 1000.0;
367 }
368
369 double G1GCPhaseTimes::get_time_ms(GCParPhases phase, uint worker_i) {
370 return _gc_par_phases[phase]->get(worker_i) * 1000.0;
371 }
372
373 double G1GCPhaseTimes::sum_time_ms(GCParPhases phase) {
374 return _gc_par_phases[phase]->sum() * 1000.0;
375 }
376
377 double G1GCPhaseTimes::min_time_ms(GCParPhases phase) {
378 return _gc_par_phases[phase]->minimum() * 1000.0;
379 }
380
381 double G1GCPhaseTimes::max_time_ms(GCParPhases phase) {
382 return _gc_par_phases[phase]->maximum() * 1000.0;
383 }
384
385 size_t G1GCPhaseTimes::get_thread_work_item(GCParPhases phase, uint worker_i) {
386 assert(_gc_par_phases[phase]->thread_work_items() != NULL, "No sub count");
387 return _gc_par_phases[phase]->thread_work_items()->get(worker_i);
388 }
389
390 size_t G1GCPhaseTimes::sum_thread_work_items(GCParPhases phase) {
391 assert(_gc_par_phases[phase]->thread_work_items() != NULL, "No sub count");
392 return _gc_par_phases[phase]->thread_work_items()->sum();
393 }
394
395 double G1GCPhaseTimes::average_thread_work_items(GCParPhases phase) {
396 assert(_gc_par_phases[phase]->thread_work_items() != NULL, "No sub count");
397 return _gc_par_phases[phase]->thread_work_items()->average();
398 }
399
400 size_t G1GCPhaseTimes::min_thread_work_items(GCParPhases phase) {
401 assert(_gc_par_phases[phase]->thread_work_items() != NULL, "No sub count");
402 return _gc_par_phases[phase]->thread_work_items()->minimum();
403 }
404
405 size_t G1GCPhaseTimes::max_thread_work_items(GCParPhases phase) {
406 assert(_gc_par_phases[phase]->thread_work_items() != NULL, "No sub count");
407 return _gc_par_phases[phase]->thread_work_items()->maximum();
408 }
409
410 class G1GCParPhasePrinter : public StackObj {
411 G1GCPhaseTimes* _phase_times;
412 public:
413 G1GCParPhasePrinter(G1GCPhaseTimes* phase_times) : _phase_times(phase_times) {}
414
415 void print(G1GCPhaseTimes::GCParPhases phase_id) {
416 WorkerDataArray<double>* phase = _phase_times->_gc_par_phases[phase_id];
417
418 if (phase->_log_level > G1Log::level() || !phase->_enabled) {
419 return;
420 }
421
422 if (phase->_length == 1) {
423 print_single_length(phase_id, phase);
424 } else {
425 print_multi_length(phase_id, phase);
426 }
427 }
428
429 private:
430
431 void print_single_length(G1GCPhaseTimes::GCParPhases phase_id, WorkerDataArray<double>* phase) {
432 // No need for min, max, average and sum for only one worker
433 LineBuffer buf(phase->_indent_level);
434 buf.append_and_print_cr("[%s: %.1lf]", phase->_title, _phase_times->get_time_ms(phase_id, 0));
435
436 if (phase->_thread_work_items != NULL) {
437 LineBuffer buf2(phase->_thread_work_items->_indent_level);
438 buf2.append_and_print_cr("[%s: "SIZE_FORMAT"]", phase->_thread_work_items->_title, _phase_times->sum_thread_work_items(phase_id));
439 }
440 }
441
442 void print_time_values(LineBuffer& buf, G1GCPhaseTimes::GCParPhases phase_id, WorkerDataArray<double>* phase) {
443 for (uint i = 0; i < phase->_length; ++i) {
444 buf.append(" %.1lf", _phase_times->get_time_ms(phase_id, i));
445 }
446 buf.print_cr();
447 }
448
449 void print_count_values(LineBuffer& buf, G1GCPhaseTimes::GCParPhases phase_id, WorkerDataArray<size_t>* thread_work_items) {
450 for (uint i = 0; i < thread_work_items->_length; ++i) {
451 buf.append(" " SIZE_FORMAT, _phase_times->get_thread_work_item(phase_id, i));
452 }
453 buf.print_cr();
454 }
455
456 void print_thread_work_items(G1GCPhaseTimes::GCParPhases phase_id, WorkerDataArray<size_t>* thread_work_items) {
457 LineBuffer buf(thread_work_items->_indent_level);
458 buf.append("[%s:", thread_work_items->_title);
459
460 if (G1Log::finest()) {
461 print_count_values(buf, phase_id, thread_work_items);
462 }
463
464 assert(thread_work_items->_print_sum, err_msg("%s does not have print sum true even though it is a count", thread_work_items->_title));
465
466 buf.append_and_print_cr(" Min: " SIZE_FORMAT ", Avg: %.1lf, Max: " SIZE_FORMAT ", Diff: " SIZE_FORMAT ", Sum: " SIZE_FORMAT "]",
467 _phase_times->min_thread_work_items(phase_id), _phase_times->average_thread_work_items(phase_id), _phase_times->max_thread_work_items(phase_id),
468 _phase_times->max_thread_work_items(phase_id) - _phase_times->min_thread_work_items(phase_id), _phase_times->sum_thread_work_items(phase_id));
469 }
470
471 void print_multi_length(G1GCPhaseTimes::GCParPhases phase_id, WorkerDataArray<double>* phase) {
472 LineBuffer buf(phase->_indent_level);
473 buf.append("[%s:", phase->_title);
474
475 if (G1Log::finest()) {
476 print_time_values(buf, phase_id, phase);
477 }
478
479 buf.append(" Min: %.1lf, Avg: %.1lf, Max: %.1lf, Diff: %.1lf",
480 _phase_times->min_time_ms(phase_id), _phase_times->average_time_ms(phase_id), _phase_times->max_time_ms(phase_id),
481 _phase_times->max_time_ms(phase_id) - _phase_times->min_time_ms(phase_id));
482
483 if (phase->_print_sum) {
484 // for things like the start and end times the sum is not
485 // that relevant
486 buf.append(", Sum: %.1lf", _phase_times->sum_time_ms(phase_id));
487 }
488
489 buf.append_and_print_cr("]");
490
491 if (phase->_thread_work_items != NULL) {
492 print_thread_work_items(phase_id, phase->_thread_work_items);
493 }
494 }
495 };
496
497 void G1GCPhaseTimes::print(double pause_time_sec) {
498 G1GCParPhasePrinter par_phase_printer(this);
499
500 if (_root_region_scan_wait_time_ms > 0.0) {
501 print_stats(1, "Root Region Scan Waiting", _root_region_scan_wait_time_ms);
502 }
503
504 print_stats(1, "Parallel Time", _cur_collection_par_time_ms, _active_gc_threads);
505 for (int i = 0; i <= GCMainParPhasesLast; i++) {
506 par_phase_printer.print((GCParPhases) i);
507 }
508
509 print_stats(1, "Code Root Fixup", _cur_collection_code_root_fixup_time_ms);
510 print_stats(1, "Code Root Purge", _cur_strong_code_root_purge_time_ms);
511 if (G1StringDedup::is_enabled()) {
512 print_stats(1, "String Dedup Fixup", _cur_string_dedup_fixup_time_ms, _active_gc_threads);
513 for (int i = StringDedupPhasesFirst; i <= StringDedupPhasesLast; i++) {
514 par_phase_printer.print((GCParPhases) i);
515 }
516 }
517 print_stats(1, "Clear CT", _cur_clear_ct_time_ms);
518 double misc_time_ms = pause_time_sec * MILLIUNITS - accounted_time_ms();
519 print_stats(1, "Other", misc_time_ms);
520 if (_cur_verify_before_time_ms > 0.0) {
521 print_stats(2, "Verify Before", _cur_verify_before_time_ms);
522 }
523 if (_cur_expand_heap_time_ms > 0.0) {
524 print_stats(2, "Expand Heap", _cur_expand_heap_time_ms);
525 }
526 if (G1CollectedHeap::heap()->evacuation_failed()) {
527 double evac_fail_handling = _cur_evac_fail_recalc_used + _cur_evac_fail_remove_self_forwards +
528 _cur_evac_fail_restore_remsets;
529 print_stats(2, "Evacuation Failure", evac_fail_handling);
530 if (G1Log::finest()) {
531 print_stats(3, "Recalculate Used", _cur_evac_fail_recalc_used);
532 print_stats(3, "Remove Self Forwards", _cur_evac_fail_remove_self_forwards);
533 print_stats(3, "Restore RemSet", _cur_evac_fail_restore_remsets);
534 }
535 }
536 print_stats(2, "Choose CSet",
537 (_recorded_young_cset_choice_time_ms +
538 _recorded_non_young_cset_choice_time_ms));
539 print_stats(2, "Ref Proc", _cur_ref_proc_time_ms);
540 print_stats(2, "Ref Enq", _cur_ref_enq_time_ms);
541 print_stats(2, "Redirty Cards", _recorded_redirty_logged_cards_time_ms);
542 par_phase_printer.print(RedirtyCards);
543 if (G1EagerReclaimHumongousObjects) {
544 print_stats(2, "Humongous Register", _cur_fast_reclaim_humongous_register_time_ms);
545 if (G1Log::finest()) {
546 print_stats(3, "Humongous Total", _cur_fast_reclaim_humongous_total);
547 print_stats(3, "Humongous Candidate", _cur_fast_reclaim_humongous_candidates);
548 }
549 print_stats(2, "Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms);
550 if (G1Log::finest()) {
551 print_stats(3, "Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed);
552 }
553 }
554 print_stats(2, "Free CSet",
555 (_recorded_young_free_cset_time_ms +
556 _recorded_non_young_free_cset_time_ms));
557 if (G1Log::finest()) {
558 print_stats(3, "Young Free CSet", _recorded_young_free_cset_time_ms);
559 print_stats(3, "Non-Young Free CSet", _recorded_non_young_free_cset_time_ms);
560 }
561 if (_cur_verify_after_time_ms > 0.0) {
562 print_stats(2, "Verify After", _cur_verify_after_time_ms);
563 }
564 }
565
566 G1GCParPhaseTimesTracker::G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id) :
567 _phase_times(phase_times), _phase(phase), _worker_id(worker_id) {
568 if (_phase_times != NULL) {
569 _start_time = os::elapsedTime();
570 }
571 }
572
573 G1GCParPhaseTimesTracker::~G1GCParPhaseTimesTracker() {
574 if (_phase_times != NULL) {
575 _phase_times->record_time_secs(_phase, _worker_id, os::elapsedTime() - _start_time);
576 }
577 }
578