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 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP
27
28 #include "memory/allocation.hpp"
29 #include "gc_interface/gcCause.hpp"
30
31 template <class T>
32 class WorkerDataArray : public CHeapObj<mtGC> {
33 T* _data;
34 uint _length;
35 const char* _print_format;
36 bool _print_sum;
37
38 NOT_PRODUCT(static const T _uninitialized;)
39
40 // We are caching the sum and average to only have to calculate them once.
41 // This is not done in an MT-safe way. It is intended to allow single
42 // threaded code to call sum() and average() multiple times in any order
43 // without having to worry about the cost.
44 bool _has_new_data;
45 T _sum;
46 double _average;
47
48 public:
49 WorkerDataArray(uint length, const char* print_format, bool print_sum = true) :
50 _length(length), _print_format(print_format), _print_sum(print_sum), _has_new_data(true) {
51 assert(length > 0, "Must have some workers to store data for");
52 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
53 }
54
55 ~WorkerDataArray() {
56 FREE_C_HEAP_ARRAY(T, _data, mtGC);
57 }
58
59 void set(uint worker_i, T value) {
60 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
61 assert(_data[worker_i] == (T)-1, err_msg("Overwriting data for worker %d", worker_i));
62 _data[worker_i] = value;
63 _has_new_data = true;
64 }
65
66 T get(uint worker_i) {
67 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
68 assert(_data[worker_i] != (T)-1, err_msg("No data to add to for worker %d", worker_i));
69 return _data[worker_i];
70 }
71
72 void add(uint worker_i, T value) {
73 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
74 assert(_data[worker_i] != (T)-1, err_msg("No data to add to for worker %d", worker_i));
75 _data[worker_i] += value;
76 _has_new_data = true;
77 }
78
79 double average(){
80 if (_has_new_data) {
81 calculate_totals();
82 }
83 return _average;
84 }
85
86 T sum() {
87 if (_has_new_data) {
88 calculate_totals();
89 }
90 return _sum;
91 }
92
93 void print(int level, const char* title);
94
95 void reset() PRODUCT_RETURN;
96 void verify() PRODUCT_RETURN;
97
98 private:
99
100 void calculate_totals(){
101 _sum = (T)0;
102 for (uint i = 0; i < _length; ++i) {
103 _sum += _data[i];
104 }
105 _average = (double)_sum / (double)_length;
106 _has_new_data = false;
107 }
108 };
109
110 class G1GCPhaseTimes : public CHeapObj<mtGC> {
111
112 private:
113 uint _active_gc_threads;
114 uint _max_gc_threads;
115
116 WorkerDataArray<double> _last_gc_worker_start_times_ms;
117 WorkerDataArray<double> _last_ext_root_scan_times_ms;
118 WorkerDataArray<double> _last_satb_filtering_times_ms;
119 WorkerDataArray<double> _last_update_rs_times_ms;
120 WorkerDataArray<int> _last_update_rs_processed_buffers;
121 WorkerDataArray<double> _last_scan_rs_times_ms;
122 WorkerDataArray<double> _last_strong_code_root_scan_times_ms;
123 WorkerDataArray<double> _last_obj_copy_times_ms;
124 WorkerDataArray<double> _last_termination_times_ms;
125 WorkerDataArray<size_t> _last_termination_attempts;
126 WorkerDataArray<double> _last_gc_worker_end_times_ms;
127 WorkerDataArray<double> _last_gc_worker_times_ms;
128 WorkerDataArray<double> _last_gc_worker_other_times_ms;
129
130 double _cur_collection_par_time_ms;
131 double _cur_collection_code_root_fixup_time_ms;
132 double _cur_strong_code_root_purge_time_ms;
133
134 double _cur_evac_fail_recalc_used;
135 double _cur_evac_fail_restore_remsets;
136 double _cur_evac_fail_remove_self_forwards;
137
138 double _cur_string_dedup_fixup_time_ms;
139 WorkerDataArray<double> _cur_string_dedup_queue_fixup_worker_times_ms;
140 WorkerDataArray<double> _cur_string_dedup_table_fixup_worker_times_ms;
141
142 double _cur_clear_ct_time_ms;
143 double _cur_ref_proc_time_ms;
144 double _cur_ref_enq_time_ms;
145
146 double _cur_collection_start_sec;
147 double _root_region_scan_wait_time_ms;
148
149 double _recorded_young_cset_choice_time_ms;
150 double _recorded_non_young_cset_choice_time_ms;
151
152 WorkerDataArray<double> _last_redirty_logged_cards_time_ms;
153 WorkerDataArray<size_t> _last_redirty_logged_cards_processed_cards;
154 double _recorded_redirty_logged_cards_time_ms;
155
156 double _recorded_young_free_cset_time_ms;
157 double _recorded_non_young_free_cset_time_ms;
158
159 double _cur_fast_reclaim_humongous_time_ms;
160 size_t _cur_fast_reclaim_humongous_total;
161 size_t _cur_fast_reclaim_humongous_candidates;
162 size_t _cur_fast_reclaim_humongous_reclaimed;
163
164 double _cur_verify_before_time_ms;
165 double _cur_verify_after_time_ms;
166
167 // Helper methods for detailed logging
168 void print_stats(int level, const char* str, double value);
169 void print_stats(int level, const char* str, size_t value);
170 void print_stats(int level, const char* str, double value, uint workers);
171
172 public:
173 G1GCPhaseTimes(uint max_gc_threads);
174 void note_gc_start(uint active_gc_threads);
175 void note_gc_end();
176 void print(double pause_time_sec);
177
178 void record_gc_worker_start_time(uint worker_i, double ms) {
179 _last_gc_worker_start_times_ms.set(worker_i, ms);
180 }
181
182 void record_ext_root_scan_time(uint worker_i, double ms) {
183 _last_ext_root_scan_times_ms.set(worker_i, ms);
184 }
185
186 void record_satb_filtering_time(uint worker_i, double ms) {
187 _last_satb_filtering_times_ms.set(worker_i, ms);
188 }
189
190 void record_update_rs_time(uint worker_i, double ms) {
191 _last_update_rs_times_ms.set(worker_i, ms);
192 }
193
194 void record_update_rs_processed_buffers(uint worker_i, int processed_buffers) {
195 _last_update_rs_processed_buffers.set(worker_i, processed_buffers);
196 }
197
198 void record_scan_rs_time(uint worker_i, double ms) {
199 _last_scan_rs_times_ms.set(worker_i, ms);
200 }
201
202 void record_strong_code_root_scan_time(uint worker_i, double ms) {
203 _last_strong_code_root_scan_times_ms.set(worker_i, ms);
204 }
205
206 void record_obj_copy_time(uint worker_i, double ms) {
207 _last_obj_copy_times_ms.set(worker_i, ms);
208 }
209
210 void add_obj_copy_time(uint worker_i, double ms) {
211 _last_obj_copy_times_ms.add(worker_i, ms);
212 }
213
214 void record_termination(uint worker_i, double ms, size_t attempts) {
215 _last_termination_times_ms.set(worker_i, ms);
216 _last_termination_attempts.set(worker_i, attempts);
217 }
218
219 void record_gc_worker_end_time(uint worker_i, double ms) {
220 _last_gc_worker_end_times_ms.set(worker_i, ms);
221 }
222
223 void record_clear_ct_time(double ms) {
224 _cur_clear_ct_time_ms = ms;
225 }
226
227 void record_par_time(double ms) {
228 _cur_collection_par_time_ms = ms;
229 }
230
231 void record_code_root_fixup_time(double ms) {
232 _cur_collection_code_root_fixup_time_ms = ms;
233 }
234
235 void record_strong_code_root_purge_time(double ms) {
236 _cur_strong_code_root_purge_time_ms = ms;
237 }
238
239 void record_evac_fail_recalc_used_time(double ms) {
240 _cur_evac_fail_recalc_used = ms;
241 }
242
243 void record_evac_fail_restore_remsets(double ms) {
244 _cur_evac_fail_restore_remsets = ms;
245 }
246
247 void record_evac_fail_remove_self_forwards(double ms) {
248 _cur_evac_fail_remove_self_forwards = ms;
249 }
250
251 void note_string_dedup_fixup_start();
252 void note_string_dedup_fixup_end();
253
254 void record_string_dedup_fixup_time(double ms) {
255 _cur_string_dedup_fixup_time_ms = ms;
256 }
257
258 void record_string_dedup_queue_fixup_worker_time(uint worker_id, double ms) {
259 _cur_string_dedup_queue_fixup_worker_times_ms.set(worker_id, ms);
260 }
261
262 void record_string_dedup_table_fixup_worker_time(uint worker_id, double ms) {
263 _cur_string_dedup_table_fixup_worker_times_ms.set(worker_id, ms);
264 }
265
266 void record_ref_proc_time(double ms) {
267 _cur_ref_proc_time_ms = ms;
268 }
269
270 void record_ref_enq_time(double ms) {
271 _cur_ref_enq_time_ms = ms;
272 }
273
274 void record_root_region_scan_wait_time(double time_ms) {
275 _root_region_scan_wait_time_ms = time_ms;
276 }
277
278 void record_young_free_cset_time_ms(double time_ms) {
279 _recorded_young_free_cset_time_ms = time_ms;
280 }
281
282 void record_non_young_free_cset_time_ms(double time_ms) {
283 _recorded_non_young_free_cset_time_ms = time_ms;
284 }
285
286 void record_fast_reclaim_humongous_stats(size_t total, size_t candidates) {
287 _cur_fast_reclaim_humongous_total = total;
288 _cur_fast_reclaim_humongous_candidates = candidates;
289 }
290
291 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
292 _cur_fast_reclaim_humongous_time_ms = value;
293 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
294 }
295
296 void record_young_cset_choice_time_ms(double time_ms) {
297 _recorded_young_cset_choice_time_ms = time_ms;
298 }
299
300 void record_non_young_cset_choice_time_ms(double time_ms) {
301 _recorded_non_young_cset_choice_time_ms = time_ms;
302 }
303
304 void record_redirty_logged_cards_time_ms(uint worker_i, double time_ms) {
305 _last_redirty_logged_cards_time_ms.set(worker_i, time_ms);
306 }
307
308 void record_redirty_logged_cards_processed_cards(uint worker_i, size_t processed_buffers) {
309 _last_redirty_logged_cards_processed_cards.set(worker_i, processed_buffers);
310 }
311
312 void record_redirty_logged_cards_time_ms(double time_ms) {
313 _recorded_redirty_logged_cards_time_ms = time_ms;
314 }
315
316 void record_cur_collection_start_sec(double time_ms) {
317 _cur_collection_start_sec = time_ms;
318 }
319
320 void record_verify_before_time_ms(double time_ms) {
321 _cur_verify_before_time_ms = time_ms;
322 }
323
324 void record_verify_after_time_ms(double time_ms) {
325 _cur_verify_after_time_ms = time_ms;
326 }
327
328 double accounted_time_ms();
329
330 double cur_collection_start_sec() {
331 return _cur_collection_start_sec;
332 }
333
334 double cur_collection_par_time_ms() {
335 return _cur_collection_par_time_ms;
336 }
337
338 double cur_clear_ct_time_ms() {
339 return _cur_clear_ct_time_ms;
340 }
341
342 double root_region_scan_wait_time_ms() {
343 return _root_region_scan_wait_time_ms;
344 }
345
346 double young_cset_choice_time_ms() {
347 return _recorded_young_cset_choice_time_ms;
348 }
349
350 double young_free_cset_time_ms() {
351 return _recorded_young_free_cset_time_ms;
352 }
353
354 double non_young_cset_choice_time_ms() {
355 return _recorded_non_young_cset_choice_time_ms;
356 }
357
358 double non_young_free_cset_time_ms() {
359 return _recorded_non_young_free_cset_time_ms;
360 }
361
362 double fast_reclaim_humongous_time_ms() {
363 return _cur_fast_reclaim_humongous_time_ms;
364 }
365
366 double average_last_update_rs_time() {
367 return _last_update_rs_times_ms.average();
368 }
369
370 int sum_last_update_rs_processed_buffers() {
371 return _last_update_rs_processed_buffers.sum();
372 }
373
374 double average_last_scan_rs_time(){
375 return _last_scan_rs_times_ms.average();
376 }
377
378 double average_last_strong_code_root_scan_time(){
379 return _last_strong_code_root_scan_times_ms.average();
380 }
381
382 double average_last_obj_copy_time() {
383 return _last_obj_copy_times_ms.average();
384 }
385
386 double average_last_termination_time() {
387 return _last_termination_times_ms.average();
388 }
389
390 double average_last_ext_root_scan_time() {
391 return _last_ext_root_scan_times_ms.average();
392 }
393
394 double average_last_satb_filtering_times_ms() {
395 return _last_satb_filtering_times_ms.average();
396 }
397 };
398
399 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP