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_strong_code_root_mark_times_ms;
124 WorkerDataArray<double> _last_obj_copy_times_ms;
125 WorkerDataArray<double> _last_termination_times_ms;
126 WorkerDataArray<size_t> _last_termination_attempts;
127 WorkerDataArray<double> _last_gc_worker_end_times_ms;
128 WorkerDataArray<double> _last_gc_worker_times_ms;
129 WorkerDataArray<double> _last_gc_worker_other_times_ms;
130
131 double _cur_collection_par_time_ms;
132 double _cur_collection_code_root_fixup_time_ms;
133 double _cur_strong_code_root_migration_time_ms;
134 double _cur_strong_code_root_purge_time_ms;
135
136 double _cur_evac_fail_recalc_used;
137 double _cur_evac_fail_restore_remsets;
138 double _cur_evac_fail_remove_self_forwards;
139
140 double _cur_string_dedup_fixup_time_ms;
141 WorkerDataArray<double> _cur_string_dedup_queue_fixup_worker_times_ms;
142 WorkerDataArray<double> _cur_string_dedup_table_fixup_worker_times_ms;
143
144 double _cur_clear_ct_time_ms;
145 double _cur_ref_proc_time_ms;
146 double _cur_ref_enq_time_ms;
147
148 double _cur_collection_start_sec;
149 double _root_region_scan_wait_time_ms;
150
151 double _recorded_young_cset_choice_time_ms;
152 double _recorded_non_young_cset_choice_time_ms;
153
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_verify_before_time_ms;
160 double _cur_verify_after_time_ms;
161
162 // Helper methods for detailed logging
163 void print_stats(int level, const char* str, double value);
164 void print_stats(int level, const char* str, double value, uint workers);
165
166 public:
167 G1GCPhaseTimes(uint max_gc_threads);
168 void note_gc_start(uint active_gc_threads);
169 void note_gc_end();
170 void print(double pause_time_sec);
171
172 void record_gc_worker_start_time(uint worker_i, double ms) {
173 _last_gc_worker_start_times_ms.set(worker_i, ms);
174 }
175
176 void record_ext_root_scan_time(uint worker_i, double ms) {
177 _last_ext_root_scan_times_ms.set(worker_i, ms);
178 }
179
180 void record_satb_filtering_time(uint worker_i, double ms) {
181 _last_satb_filtering_times_ms.set(worker_i, ms);
182 }
183
184 void record_update_rs_time(uint worker_i, double ms) {
185 _last_update_rs_times_ms.set(worker_i, ms);
186 }
187
188 void record_update_rs_processed_buffers(uint worker_i, int processed_buffers) {
189 _last_update_rs_processed_buffers.set(worker_i, processed_buffers);
190 }
191
192 void record_scan_rs_time(uint worker_i, double ms) {
193 _last_scan_rs_times_ms.set(worker_i, ms);
194 }
195
196 void record_strong_code_root_scan_time(uint worker_i, double ms) {
197 _last_strong_code_root_scan_times_ms.set(worker_i, ms);
198 }
199
200 void record_strong_code_root_mark_time(uint worker_i, double ms) {
201 _last_strong_code_root_mark_times_ms.set(worker_i, ms);
202 }
203
204 void record_obj_copy_time(uint worker_i, double ms) {
205 _last_obj_copy_times_ms.set(worker_i, ms);
206 }
207
208 void add_obj_copy_time(uint worker_i, double ms) {
209 _last_obj_copy_times_ms.add(worker_i, ms);
210 }
211
212 void record_termination(uint worker_i, double ms, size_t attempts) {
213 _last_termination_times_ms.set(worker_i, ms);
214 _last_termination_attempts.set(worker_i, attempts);
215 }
216
217 void record_gc_worker_end_time(uint worker_i, double ms) {
218 _last_gc_worker_end_times_ms.set(worker_i, ms);
219 }
220
221 void record_clear_ct_time(double ms) {
222 _cur_clear_ct_time_ms = ms;
223 }
224
225 void record_par_time(double ms) {
226 _cur_collection_par_time_ms = ms;
227 }
228
229 void record_code_root_fixup_time(double ms) {
230 _cur_collection_code_root_fixup_time_ms = ms;
231 }
232
233 void record_strong_code_root_migration_time(double ms) {
234 _cur_strong_code_root_migration_time_ms = ms;
235 }
236
237 void record_strong_code_root_purge_time(double ms) {
238 _cur_strong_code_root_purge_time_ms = ms;
239 }
240
241 void record_evac_fail_recalc_used_time(double ms) {
242 _cur_evac_fail_recalc_used = ms;
243 }
244
245 void record_evac_fail_restore_remsets(double ms) {
246 _cur_evac_fail_restore_remsets = ms;
247 }
248
249 void record_evac_fail_remove_self_forwards(double ms) {
250 _cur_evac_fail_remove_self_forwards = ms;
251 }
252
253 void note_string_dedup_fixup_start();
254 void note_string_dedup_fixup_end();
255
256 void record_string_dedup_fixup_time(double ms) {
257 _cur_string_dedup_fixup_time_ms = ms;
258 }
259
260 void record_string_dedup_queue_fixup_worker_time(uint worker_id, double ms) {
261 _cur_string_dedup_queue_fixup_worker_times_ms.set(worker_id, ms);
262 }
263
264 void record_string_dedup_table_fixup_worker_time(uint worker_id, double ms) {
265 _cur_string_dedup_table_fixup_worker_times_ms.set(worker_id, ms);
266 }
267
268 void record_ref_proc_time(double ms) {
269 _cur_ref_proc_time_ms = ms;
270 }
271
272 void record_ref_enq_time(double ms) {
273 _cur_ref_enq_time_ms = ms;
274 }
275
276 void record_root_region_scan_wait_time(double time_ms) {
277 _root_region_scan_wait_time_ms = time_ms;
278 }
279
280 void record_young_free_cset_time_ms(double time_ms) {
281 _recorded_young_free_cset_time_ms = time_ms;
282 }
283
284 void record_non_young_free_cset_time_ms(double time_ms) {
285 _recorded_non_young_free_cset_time_ms = time_ms;
286 }
287
288 void record_young_cset_choice_time_ms(double time_ms) {
289 _recorded_young_cset_choice_time_ms = time_ms;
290 }
291
292 void record_non_young_cset_choice_time_ms(double time_ms) {
293 _recorded_non_young_cset_choice_time_ms = time_ms;
294 }
295
296 void record_redirty_logged_cards_time_ms(double time_ms) {
297 _recorded_redirty_logged_cards_time_ms = time_ms;
298 }
299
300 void record_cur_collection_start_sec(double time_ms) {
301 _cur_collection_start_sec = time_ms;
302 }
303
304 void record_verify_before_time_ms(double time_ms) {
305 _cur_verify_before_time_ms = time_ms;
306 }
307
308 void record_verify_after_time_ms(double time_ms) {
309 _cur_verify_after_time_ms = time_ms;
310 }
311
312 double accounted_time_ms();
313
314 double cur_collection_start_sec() {
315 return _cur_collection_start_sec;
316 }
317
318 double cur_collection_par_time_ms() {
319 return _cur_collection_par_time_ms;
320 }
321
322 double cur_clear_ct_time_ms() {
323 return _cur_clear_ct_time_ms;
324 }
325
326 double root_region_scan_wait_time_ms() {
327 return _root_region_scan_wait_time_ms;
328 }
329
330 double young_cset_choice_time_ms() {
331 return _recorded_young_cset_choice_time_ms;
332 }
333
334 double young_free_cset_time_ms() {
335 return _recorded_young_free_cset_time_ms;
336 }
337
338 double non_young_cset_choice_time_ms() {
339 return _recorded_non_young_cset_choice_time_ms;
340 }
341
342 double non_young_free_cset_time_ms() {
343 return _recorded_non_young_free_cset_time_ms;
344 }
345
346 double average_last_update_rs_time() {
347 return _last_update_rs_times_ms.average();
348 }
349
350 int sum_last_update_rs_processed_buffers() {
351 return _last_update_rs_processed_buffers.sum();
352 }
353
354 double average_last_scan_rs_time(){
355 return _last_scan_rs_times_ms.average();
356 }
357
358 double average_last_strong_code_root_scan_time(){
359 return _last_strong_code_root_scan_times_ms.average();
360 }
361
362 double average_last_strong_code_root_mark_time(){
363 return _last_strong_code_root_mark_times_ms.average();
364 }
365
366 double average_last_obj_copy_time() {
367 return _last_obj_copy_times_ms.average();
368 }
369
370 double average_last_termination_time() {
371 return _last_termination_times_ms.average();
372 }
373
374 double average_last_ext_root_scan_time() {
375 return _last_ext_root_scan_times_ms.average();
376 }
377
378 double average_last_satb_filtering_times_ms() {
379 return _last_satb_filtering_times_ms.average();
380 }
381 };
382
383 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP