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 "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_weak_ref_proc_time_ms;
133
134 double _cur_collection_start_sec;
135 double _root_region_scan_wait_time_ms;
136
137 double _external_accounted_time_ms;
138
139 double _recorded_clear_claimed_marks_time_ms;
140
141 double _recorded_young_cset_choice_time_ms;
142 double _recorded_non_young_cset_choice_time_ms;
143
144 double _recorded_redirty_logged_cards_time_ms;
145
146 double _recorded_preserve_cm_referents_time_ms;
147
148 double _recorded_merge_pss_time_ms;
149
150 double _recorded_start_new_cset_time_ms;
151
152 double _recorded_total_free_cset_time_ms;
153
154 double _recorded_serial_free_cset_time_ms;
155
156 double _cur_fast_reclaim_humongous_time_ms;
157 double _cur_fast_reclaim_humongous_register_time_ms;
158 size_t _cur_fast_reclaim_humongous_total;
159 size_t _cur_fast_reclaim_humongous_candidates;
160 size_t _cur_fast_reclaim_humongous_reclaimed;
161
162 double _cur_verify_before_time_ms;
163 double _cur_verify_after_time_ms;
164
165 ReferenceProcessorPhaseTimes _ref_phase_times;
166
167 double worker_time(GCParPhases phase, uint worker);
168 void note_gc_end();
169 void reset();
170
171 template <class T>
172 void details(T* phase, const char* indent) const;
173
174 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
175 void debug_phase(WorkerDataArray<double>* phase) const;
176 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
177
178 void info_time(const char* name, double value) const;
179 void debug_time(const char* name, double value) const;
180 // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
181 void debug_time_for_reference(const char* name, double value) const;
182 void trace_time(const char* name, double value) const;
183 void trace_count(const char* name, size_t value) const;
184
185 double print_pre_evacuate_collection_set() const;
186 double print_evacuate_collection_set() const;
187 double print_post_evacuate_collection_set() const;
188 void print_other(double accounted_ms) const;
189
190 public:
191 G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads);
192 void note_gc_start();
193 void print();
194
195 // record the time a phase took in seconds
196 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
197
198 // add a number of seconds to a phase
199 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
200
201 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
202
203 // return the average time for a phase in milliseconds
204 double average_time_ms(GCParPhases phase);
205
206 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
207
208 public:
209
210 void record_prepare_tlab_time_ms(double ms) {
211 _cur_prepare_tlab_time_ms = ms;
212 }
213
214 void record_resize_tlab_time_ms(double ms) {
215 _cur_resize_tlab_time_ms = ms;
216 }
217
218 void record_derived_pointer_table_update_time(double ms) {
219 _cur_derived_pointer_table_update_time_ms = ms;
220 }
221
222 void record_clear_ct_time(double ms) {
223 _cur_clear_ct_time_ms = ms;
224 }
225
226 void record_expand_heap_time(double ms) {
227 _cur_expand_heap_time_ms = ms;
228 }
229
230 void record_par_time(double ms) {
231 _cur_collection_par_time_ms = ms;
232 }
233
234 void record_code_root_fixup_time(double ms) {
235 _cur_collection_code_root_fixup_time_ms = ms;
236 }
237
238 void record_strong_code_root_purge_time(double ms) {
239 _cur_strong_code_root_purge_time_ms = ms;
240 }
241
242 void record_evac_fail_recalc_used_time(double ms) {
243 _cur_evac_fail_recalc_used = ms;
244 }
245
246 void record_evac_fail_remove_self_forwards(double ms) {
247 _cur_evac_fail_remove_self_forwards = ms;
248 }
249
250 void record_string_dedup_fixup_time(double ms) {
251 _cur_string_dedup_fixup_time_ms = ms;
252 }
253
254 void record_ref_proc_time(double ms) {
255 _cur_ref_proc_time_ms = ms;
256 }
257
258 void record_weak_ref_proc_time(double ms) {
259 _cur_weak_ref_proc_time_ms = ms;
260 }
261
262 void record_ref_enq_time(double ms) {
263 _cur_ref_enq_time_ms = ms;
264 }
265
266 void record_root_region_scan_wait_time(double time_ms) {
267 _root_region_scan_wait_time_ms = time_ms;
268 }
269
270 void record_total_free_cset_time_ms(double time_ms) {
271 _recorded_total_free_cset_time_ms = time_ms;
272 }
273
274 void record_serial_free_cset_time_ms(double time_ms) {
275 _recorded_serial_free_cset_time_ms = time_ms;
276 }
277
278 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
279 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
280 _cur_fast_reclaim_humongous_total = total;
281 _cur_fast_reclaim_humongous_candidates = candidates;
282 }
283
284 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
285 _cur_fast_reclaim_humongous_time_ms = value;
286 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
287 }
288
289 void record_young_cset_choice_time_ms(double time_ms) {
290 _recorded_young_cset_choice_time_ms = time_ms;
291 }
292
293 void record_non_young_cset_choice_time_ms(double time_ms) {
294 _recorded_non_young_cset_choice_time_ms = time_ms;
295 }
296
297 void record_redirty_logged_cards_time_ms(double time_ms) {
298 _recorded_redirty_logged_cards_time_ms = time_ms;
299 }
300
301 void record_preserve_cm_referents_time_ms(double time_ms) {
302 _recorded_preserve_cm_referents_time_ms = time_ms;
303 }
304
305 void record_merge_pss_time_ms(double time_ms) {
306 _recorded_merge_pss_time_ms = time_ms;
307 }
308
309 void record_start_new_cset_time_ms(double time_ms) {
310 _recorded_start_new_cset_time_ms = time_ms;
311 }
312
313 void record_cur_collection_start_sec(double time_ms) {
314 _cur_collection_start_sec = time_ms;
315 }
316
317 void record_verify_before_time_ms(double time_ms) {
318 _cur_verify_before_time_ms = time_ms;
319 }
320
321 void record_verify_after_time_ms(double time_ms) {
322 _cur_verify_after_time_ms = time_ms;
323 }
324
325 void inc_external_accounted_time_ms(double time_ms) {
326 _external_accounted_time_ms += time_ms;
327 }
328
329 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
330 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
331 }
332
333 double cur_collection_start_sec() {
334 return _cur_collection_start_sec;
335 }
336
337 double cur_collection_par_time_ms() {
338 return _cur_collection_par_time_ms;
339 }
340
341 double cur_clear_ct_time_ms() {
342 return _cur_clear_ct_time_ms;
343 }
344
345 double cur_expand_heap_time_ms() {
346 return _cur_expand_heap_time_ms;
347 }
348
349 double root_region_scan_wait_time_ms() {
350 return _root_region_scan_wait_time_ms;
351 }
352
353 double young_cset_choice_time_ms() {
354 return _recorded_young_cset_choice_time_ms;
355 }
356
357 double total_free_cset_time_ms() {
358 return _recorded_total_free_cset_time_ms;
359 }
360
361 double non_young_cset_choice_time_ms() {
362 return _recorded_non_young_cset_choice_time_ms;
363 }
364
365 double fast_reclaim_humongous_time_ms() {
366 return _cur_fast_reclaim_humongous_time_ms;
367 }
368
369 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
370 };
371
372 class G1GCParPhaseTimesTracker : public StackObj {
373 double _start_time;
374 G1GCPhaseTimes::GCParPhases _phase;
375 G1GCPhaseTimes* _phase_times;
376 uint _worker_id;
377 public:
378 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
379 ~G1GCParPhaseTimesTracker();
380 };
381
382 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP