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 #ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
27
28 #include "logging/logLevel.hpp"
29 #include "memory/allocation.hpp"
30
31 class LineBuffer;
32
33 template <class T> class WorkerDataArray;
34
35 class G1GCPhaseTimes : public CHeapObj<mtGC> {
36 uint _max_gc_threads;
37 jlong _gc_start_counter;
38 double _gc_pause_time_ms;
39
40 public:
41 enum GCParPhases {
42 GCWorkerStart,
43 ExtRootScan,
44 ThreadRoots,
45 StringTableRoots,
46 UniverseRoots,
47 JNIRoots,
48 ObjectSynchronizerRoots,
49 FlatProfilerRoots,
50 ManagementRoots,
51 SystemDictionaryRoots,
52 CLDGRoots,
53 JVMTIRoots,
54 CMRefRoots,
55 WaitForStrongCLD,
56 WeakCLDRoots,
57 SATBFiltering,
58 UpdateRS,
59 ScanHCC,
60 ScanRS,
61 CodeRoots,
62 #if INCLUDE_AOT
63 AOTCodeRoots,
64 #endif
65 ObjCopy,
66 Termination,
67 Other,
68 GCWorkerTotal,
69 GCWorkerEnd,
70 StringDedupQueueFixup,
71 StringDedupTableFixup,
72 RedirtyCards,
73 PreserveCMReferents,
74 YoungFreeCSet,
75 NonYoungFreeCSet,
76 GCParPhasesSentinel
77 };
78
79 enum GCScanRSWorkItems {
80 ScannedCards,
81 ClaimedCards,
82 SkippedCards
83 };
84
85 private:
86 // Markers for grouping the phases in the GCPhases enum above
87 static const int GCMainParPhasesLast = GCWorkerEnd;
88 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
89 static const int StringDedupPhasesLast = StringDedupTableFixup;
90
91 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
92
93 WorkerDataArray<size_t>* _update_rs_processed_buffers;
94
95 WorkerDataArray<size_t>* _scan_rs_scanned_cards;
96 WorkerDataArray<size_t>* _scan_rs_claimed_cards;
97 WorkerDataArray<size_t>* _scan_rs_skipped_cards;
98
99 WorkerDataArray<size_t>* _termination_attempts;
100
101 WorkerDataArray<size_t>* _redirtied_cards;
102
103 double _cur_collection_par_time_ms;
104 double _cur_collection_code_root_fixup_time_ms;
105 double _cur_strong_code_root_purge_time_ms;
106
107 double _cur_evac_fail_recalc_used;
108 double _cur_evac_fail_restore_remsets;
109 double _cur_evac_fail_remove_self_forwards;
110
111 double _cur_string_dedup_fixup_time_ms;
112
113 double _cur_prepare_tlab_time_ms;
114 double _cur_resize_tlab_time_ms;
115
116 double _cur_derived_pointer_table_update_time_ms;
117
118 double _cur_clear_ct_time_ms;
119 double _cur_expand_heap_time_ms;
120 double _cur_ref_proc_time_ms;
121 double _cur_ref_enq_time_ms;
122
123 double _cur_collection_start_sec;
124 double _root_region_scan_wait_time_ms;
125
126 double _external_accounted_time_ms;
127
128 double _recorded_clear_claimed_marks_time_ms;
129
130 double _recorded_young_cset_choice_time_ms;
131 double _recorded_non_young_cset_choice_time_ms;
132
133 double _recorded_redirty_logged_cards_time_ms;
134
135 double _recorded_preserve_cm_referents_time_ms;
136
137 double _recorded_merge_pss_time_ms;
138
139 double _recorded_start_new_cset_time_ms;
140
141 double _recorded_total_free_cset_time_ms;
142
143 double _recorded_serial_free_cset_time_ms;
144
145 double _cur_fast_reclaim_humongous_time_ms;
146 double _cur_fast_reclaim_humongous_register_time_ms;
147 size_t _cur_fast_reclaim_humongous_total;
148 size_t _cur_fast_reclaim_humongous_candidates;
149 size_t _cur_fast_reclaim_humongous_reclaimed;
150
151 double _cur_verify_before_time_ms;
152 double _cur_verify_after_time_ms;
153
154 double worker_time(GCParPhases phase, uint worker);
155 void note_gc_end();
156 void reset();
157
158 template <class T>
159 void details(T* phase, const char* indent) const;
160
161 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
162 void debug_phase(WorkerDataArray<double>* phase) const;
163 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
164
165 void info_time(const char* name, double value) const;
166 void debug_time(const char* name, double value) const;
167 void trace_time(const char* name, double value) const;
168 void trace_count(const char* name, size_t value) const;
169
170 double print_pre_evacuate_collection_set() const;
171 double print_evacuate_collection_set() const;
172 double print_post_evacuate_collection_set() const;
173 void print_other(double accounted_ms) const;
174
175 public:
176 G1GCPhaseTimes(uint max_gc_threads);
177 void note_gc_start();
178 void print();
179
180 // record the time a phase took in seconds
181 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
182
183 // add a number of seconds to a phase
184 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
185
186 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
187
188 // return the average time for a phase in milliseconds
189 double average_time_ms(GCParPhases phase);
190
191 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
192
193 public:
194
195 void record_prepare_tlab_time_ms(double ms) {
196 _cur_prepare_tlab_time_ms = ms;
197 }
198
199 void record_resize_tlab_time_ms(double ms) {
200 _cur_resize_tlab_time_ms = ms;
201 }
202
203 void record_derived_pointer_table_update_time(double ms) {
204 _cur_derived_pointer_table_update_time_ms = ms;
205 }
206
207 void record_clear_ct_time(double ms) {
208 _cur_clear_ct_time_ms = ms;
209 }
210
211 void record_expand_heap_time(double ms) {
212 _cur_expand_heap_time_ms = ms;
213 }
214
215 void record_par_time(double ms) {
216 _cur_collection_par_time_ms = ms;
217 }
218
219 void record_code_root_fixup_time(double ms) {
220 _cur_collection_code_root_fixup_time_ms = ms;
221 }
222
223 void record_strong_code_root_purge_time(double ms) {
224 _cur_strong_code_root_purge_time_ms = ms;
225 }
226
227 void record_evac_fail_recalc_used_time(double ms) {
228 _cur_evac_fail_recalc_used = ms;
229 }
230
231 void record_evac_fail_restore_remsets(double ms) {
232 _cur_evac_fail_restore_remsets = ms;
233 }
234
235 void record_evac_fail_remove_self_forwards(double ms) {
236 _cur_evac_fail_remove_self_forwards = ms;
237 }
238
239 void record_string_dedup_fixup_time(double ms) {
240 _cur_string_dedup_fixup_time_ms = ms;
241 }
242
243 void record_ref_proc_time(double ms) {
244 _cur_ref_proc_time_ms = ms;
245 }
246
247 void record_ref_enq_time(double ms) {
248 _cur_ref_enq_time_ms = ms;
249 }
250
251 void record_root_region_scan_wait_time(double time_ms) {
252 _root_region_scan_wait_time_ms = time_ms;
253 }
254
255 void record_total_free_cset_time_ms(double time_ms) {
256 _recorded_total_free_cset_time_ms = time_ms;
257 }
258
259 void record_serial_free_cset_time_ms(double time_ms) {
260 _recorded_serial_free_cset_time_ms = time_ms;
261 }
262
263 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
264 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
265 _cur_fast_reclaim_humongous_total = total;
266 _cur_fast_reclaim_humongous_candidates = candidates;
267 }
268
269 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
270 _cur_fast_reclaim_humongous_time_ms = value;
271 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
272 }
273
274 void record_young_cset_choice_time_ms(double time_ms) {
275 _recorded_young_cset_choice_time_ms = time_ms;
276 }
277
278 void record_non_young_cset_choice_time_ms(double time_ms) {
279 _recorded_non_young_cset_choice_time_ms = time_ms;
280 }
281
282 void record_redirty_logged_cards_time_ms(double time_ms) {
283 _recorded_redirty_logged_cards_time_ms = time_ms;
284 }
285
286 void record_preserve_cm_referents_time_ms(double time_ms) {
287 _recorded_preserve_cm_referents_time_ms = time_ms;
288 }
289
290 void record_merge_pss_time_ms(double time_ms) {
291 _recorded_merge_pss_time_ms = time_ms;
292 }
293
294 void record_start_new_cset_time_ms(double time_ms) {
295 _recorded_start_new_cset_time_ms = time_ms;
296 }
297
298 void record_cur_collection_start_sec(double time_ms) {
299 _cur_collection_start_sec = time_ms;
300 }
301
302 void record_verify_before_time_ms(double time_ms) {
303 _cur_verify_before_time_ms = time_ms;
304 }
305
306 void record_verify_after_time_ms(double time_ms) {
307 _cur_verify_after_time_ms = time_ms;
308 }
309
310 void inc_external_accounted_time_ms(double time_ms) {
311 _external_accounted_time_ms += time_ms;
312 }
313
314 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
315 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
316 }
317
318 double cur_collection_start_sec() {
319 return _cur_collection_start_sec;
320 }
321
322 double cur_collection_par_time_ms() {
323 return _cur_collection_par_time_ms;
324 }
325
326 double cur_clear_ct_time_ms() {
327 return _cur_clear_ct_time_ms;
328 }
329
330 double cur_expand_heap_time_ms() {
331 return _cur_expand_heap_time_ms;
332 }
333
334 double root_region_scan_wait_time_ms() {
335 return _root_region_scan_wait_time_ms;
336 }
337
338 double young_cset_choice_time_ms() {
339 return _recorded_young_cset_choice_time_ms;
340 }
341
342 double total_free_cset_time_ms() {
343 return _recorded_total_free_cset_time_ms;
344 }
345
346 double non_young_cset_choice_time_ms() {
347 return _recorded_non_young_cset_choice_time_ms;
348 }
349
350 double fast_reclaim_humongous_time_ms() {
351 return _cur_fast_reclaim_humongous_time_ms;
352 }
353 };
354
355 class G1GCParPhaseTimesTracker : public StackObj {
356 double _start_time;
357 G1GCPhaseTimes::GCParPhases _phase;
358 G1GCPhaseTimes* _phase_times;
359 uint _worker_id;
360 public:
361 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
362 ~G1GCParPhaseTimesTracker();
363 };
364
365 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP