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 #ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
26 #define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
27
28 #include "gc/shared/referenceProcessorPhaseTimes.hpp"
29 #include "logging/logLevel.hpp"
30 #include "memory/allocation.hpp"
31 #include "utilities/macros.hpp"
32
33 class LineBuffer;
34 class STWGCTimer;
35
36 template <class T> class WorkerDataArray;
37
38 class G1GCPhaseTimes : public CHeapObj<mtGC> {
39 uint _max_gc_threads;
40 jlong _gc_start_counter;
41 double _gc_pause_time_ms;
42
43 public:
44 enum GCParPhases {
45 GCWorkerStart,
46 ExtRootScan,
47 ThreadRoots,
48 StringTableRoots,
49 UniverseRoots,
50 JNIRoots,
51 ObjectSynchronizerRoots,
52 ManagementRoots,
53 SystemDictionaryRoots,
54 CLDGRoots,
55 JVMTIRoots,
56 CMRefRoots,
57 WaitForStrongCLD,
58 WeakCLDRoots,
59 SATBFiltering,
60 UpdateRS,
61 ScanHCC,
62 ScanRS,
63 CodeRoots,
64 #if INCLUDE_AOT
65 AOTCodeRoots,
66 #endif
67 ObjCopy,
68 Termination,
69 Other,
70 GCWorkerTotal,
71 GCWorkerEnd,
72 StringDedupQueueFixup,
73 StringDedupTableFixup,
74 RedirtyCards,
75 PreserveCMReferents,
76 YoungFreeCSet,
77 NonYoungFreeCSet,
78 GCParPhasesSentinel
79 };
80
81 enum GCScanRSWorkItems {
82 ScanRSScannedCards,
83 ScanRSClaimedCards,
84 ScanRSSkippedCards
85 };
86
87 enum GCUpdateRSWorkItems {
88 UpdateRSProcessedBuffers,
89 UpdateRSScannedCards,
90 UpdateRSSkippedCards
91 };
92
93 private:
94 // Markers for grouping the phases in the GCPhases enum above
95 static const int GCMainParPhasesLast = GCWorkerEnd;
96 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
97 static const int StringDedupPhasesLast = StringDedupTableFixup;
98
99 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
100
101 WorkerDataArray<size_t>* _update_rs_processed_buffers;
102 WorkerDataArray<size_t>* _update_rs_scanned_cards;
103 WorkerDataArray<size_t>* _update_rs_skipped_cards;
104
105 WorkerDataArray<size_t>* _scan_rs_scanned_cards;
106 WorkerDataArray<size_t>* _scan_rs_claimed_cards;
107 WorkerDataArray<size_t>* _scan_rs_skipped_cards;
108
109 WorkerDataArray<size_t>* _termination_attempts;
110
111 WorkerDataArray<size_t>* _redirtied_cards;
112
113 double _cur_collection_par_time_ms;
114 double _cur_collection_code_root_fixup_time_ms;
115 double _cur_strong_code_root_purge_time_ms;
116
117 double _cur_evac_fail_recalc_used;
118 double _cur_evac_fail_remove_self_forwards;
119
120 double _cur_string_dedup_fixup_time_ms;
121
122 double _cur_prepare_tlab_time_ms;
123 double _cur_resize_tlab_time_ms;
124
125 double _cur_derived_pointer_table_update_time_ms;
126
127 double _cur_clear_ct_time_ms;
128 double _cur_expand_heap_time_ms;
129 double _cur_ref_proc_time_ms;
130 double _cur_ref_enq_time_ms;
131
132 double _cur_collection_start_sec;
133 double _root_region_scan_wait_time_ms;
134
135 double _external_accounted_time_ms;
136
137 double _recorded_clear_claimed_marks_time_ms;
138
139 double _recorded_young_cset_choice_time_ms;
140 double _recorded_non_young_cset_choice_time_ms;
141
142 double _recorded_redirty_logged_cards_time_ms;
143
144 double _recorded_preserve_cm_referents_time_ms;
145
146 double _recorded_merge_pss_time_ms;
147
148 double _recorded_start_new_cset_time_ms;
149
150 double _recorded_total_free_cset_time_ms;
151
152 double _recorded_serial_free_cset_time_ms;
153
154 double _cur_fast_reclaim_humongous_time_ms;
155 double _cur_fast_reclaim_humongous_register_time_ms;
156 size_t _cur_fast_reclaim_humongous_total;
157 size_t _cur_fast_reclaim_humongous_candidates;
158 size_t _cur_fast_reclaim_humongous_reclaimed;
159
160 double _cur_verify_before_time_ms;
161 double _cur_verify_after_time_ms;
162
163 ReferenceProcessorPhaseTimes _ref_phase_times;
164
165 double worker_time(GCParPhases phase, uint worker);
166 void note_gc_end();
167 void reset();
168
169 template <class T>
170 void details(T* phase, const char* indent) const;
171
172 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
173 void debug_phase(WorkerDataArray<double>* phase) const;
174 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
175
176 void info_time(const char* name, double value) const;
177 void debug_time(const char* name, double value) const;
178 // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
179 void debug_time_for_reference(const char* name, double value) const;
180 void trace_time(const char* name, double value) const;
181 void trace_count(const char* name, size_t value) const;
182
183 double print_pre_evacuate_collection_set() const;
184 double print_evacuate_collection_set() const;
185 double print_post_evacuate_collection_set() const;
186 void print_other(double accounted_ms) const;
187
188 public:
189 G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads);
190 void note_gc_start();
191 void print();
192
193 // record the time a phase took in seconds
194 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
195
196 // add a number of seconds to a phase
197 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
198
199 // Move a number of seconds from one phase to another.
200 void move_time_secs(GCParPhases from, GCParPhases to, uint worker_i, double secs);
201
202 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
203
204 // return the average time for a phase in milliseconds
205 double average_time_ms(GCParPhases phase);
206
207 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
208
209 public:
210
211 void record_prepare_tlab_time_ms(double ms) {
212 _cur_prepare_tlab_time_ms = ms;
213 }
214
215 void record_resize_tlab_time_ms(double ms) {
216 _cur_resize_tlab_time_ms = ms;
217 }
218
219 void record_derived_pointer_table_update_time(double ms) {
220 _cur_derived_pointer_table_update_time_ms = ms;
221 }
222
223 void record_clear_ct_time(double ms) {
224 _cur_clear_ct_time_ms = ms;
225 }
226
227 void record_expand_heap_time(double ms) {
228 _cur_expand_heap_time_ms = ms;
229 }
230
231 void record_par_time(double ms) {
232 _cur_collection_par_time_ms = ms;
233 }
234
235 void record_code_root_fixup_time(double ms) {
236 _cur_collection_code_root_fixup_time_ms = ms;
237 }
238
239 void record_strong_code_root_purge_time(double ms) {
240 _cur_strong_code_root_purge_time_ms = ms;
241 }
242
243 void record_evac_fail_recalc_used_time(double ms) {
244 _cur_evac_fail_recalc_used = 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 record_string_dedup_fixup_time(double ms) {
252 _cur_string_dedup_fixup_time_ms = ms;
253 }
254
255 void record_ref_proc_time(double ms) {
256 _cur_ref_proc_time_ms = ms;
257 }
258
259 void record_ref_enq_time(double ms) {
260 _cur_ref_enq_time_ms = ms;
261 }
262
263 void record_root_region_scan_wait_time(double time_ms) {
264 _root_region_scan_wait_time_ms = time_ms;
265 }
266
267 void record_total_free_cset_time_ms(double time_ms) {
268 _recorded_total_free_cset_time_ms = time_ms;
269 }
270
271 void record_serial_free_cset_time_ms(double time_ms) {
272 _recorded_serial_free_cset_time_ms = time_ms;
273 }
274
275 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
276 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
277 _cur_fast_reclaim_humongous_total = total;
278 _cur_fast_reclaim_humongous_candidates = candidates;
279 }
280
281 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
282 _cur_fast_reclaim_humongous_time_ms = value;
283 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
284 }
285
286 void record_young_cset_choice_time_ms(double time_ms) {
287 _recorded_young_cset_choice_time_ms = time_ms;
288 }
289
290 void record_non_young_cset_choice_time_ms(double time_ms) {
291 _recorded_non_young_cset_choice_time_ms = time_ms;
292 }
293
294 void record_redirty_logged_cards_time_ms(double time_ms) {
295 _recorded_redirty_logged_cards_time_ms = time_ms;
296 }
297
298 void record_preserve_cm_referents_time_ms(double time_ms) {
299 _recorded_preserve_cm_referents_time_ms = time_ms;
300 }
301
302 void record_merge_pss_time_ms(double time_ms) {
303 _recorded_merge_pss_time_ms = time_ms;
304 }
305
306 void record_start_new_cset_time_ms(double time_ms) {
307 _recorded_start_new_cset_time_ms = time_ms;
308 }
309
310 void record_cur_collection_start_sec(double time_ms) {
311 _cur_collection_start_sec = time_ms;
312 }
313
314 void record_verify_before_time_ms(double time_ms) {
315 _cur_verify_before_time_ms = time_ms;
316 }
317
318 void record_verify_after_time_ms(double time_ms) {
319 _cur_verify_after_time_ms = time_ms;
320 }
321
322 void inc_external_accounted_time_ms(double time_ms) {
323 _external_accounted_time_ms += time_ms;
324 }
325
326 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
327 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
328 }
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 cur_expand_heap_time_ms() {
343 return _cur_expand_heap_time_ms;
344 }
345
346 double root_region_scan_wait_time_ms() {
347 return _root_region_scan_wait_time_ms;
348 }
349
350 double young_cset_choice_time_ms() {
351 return _recorded_young_cset_choice_time_ms;
352 }
353
354 double total_free_cset_time_ms() {
355 return _recorded_total_free_cset_time_ms;
356 }
357
358 double non_young_cset_choice_time_ms() {
359 return _recorded_non_young_cset_choice_time_ms;
360 }
361
362 double fast_reclaim_humongous_time_ms() {
363 return _cur_fast_reclaim_humongous_time_ms;
364 }
365
366 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
367 };
368
369 class G1GCParPhaseTimesTracker : public StackObj {
370 double _start_time;
371 G1GCPhaseTimes::GCParPhases _phase;
372 G1GCPhaseTimes* _phase_times;
373 uint _worker_id;
374 public:
375 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
376 ~G1GCParPhaseTimesTracker();
377 };
378
379 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP