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 ScanRSScannedCards,
81 ScanRSClaimedCards,
82 ScanRSSkippedCards
83 };
84
85 enum GCUpdateRSWorkItems {
86 UpdateRSProcessedBuffers,
87 UpdateRSScannedCards,
88 UpdateRSSkippedCards
89 };
90
91 private:
92 // Markers for grouping the phases in the GCPhases enum above
93 static const int GCMainParPhasesLast = GCWorkerEnd;
94 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
95 static const int StringDedupPhasesLast = StringDedupTableFixup;
96
97 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
98
99 WorkerDataArray<size_t>* _update_rs_processed_buffers;
100 WorkerDataArray<size_t>* _update_rs_scanned_cards;
101 WorkerDataArray<size_t>* _update_rs_skipped_cards;
102
103 WorkerDataArray<size_t>* _scan_rs_scanned_cards;
104 WorkerDataArray<size_t>* _scan_rs_claimed_cards;
105 WorkerDataArray<size_t>* _scan_rs_skipped_cards;
106
107 WorkerDataArray<size_t>* _termination_attempts;
108
109 WorkerDataArray<size_t>* _redirtied_cards;
110
111 double _cur_collection_par_time_ms;
112 double _cur_collection_code_root_fixup_time_ms;
113 double _cur_strong_code_root_purge_time_ms;
114
115 double _cur_evac_fail_recalc_used;
116 double _cur_evac_fail_remove_self_forwards;
117
118 double _cur_string_dedup_fixup_time_ms;
119
120 double _cur_prepare_tlab_time_ms;
121 double _cur_resize_tlab_time_ms;
122
123 double _cur_derived_pointer_table_update_time_ms;
124
125 double _cur_clear_ct_time_ms;
126 double _cur_expand_heap_time_ms;
127 double _cur_ref_proc_time_ms;
128 double _cur_ref_enq_time_ms;
129
130 double _cur_collection_start_sec;
131 double _root_region_scan_wait_time_ms;
132
133 double _external_accounted_time_ms;
134
135 double _recorded_clear_claimed_marks_time_ms;
136
137 double _recorded_young_cset_choice_time_ms;
138 double _recorded_non_young_cset_choice_time_ms;
139
140 double _recorded_redirty_logged_cards_time_ms;
141
142 double _recorded_preserve_cm_referents_time_ms;
143
144 double _recorded_merge_pss_time_ms;
145
146 double _recorded_start_new_cset_time_ms;
147
148 double _recorded_total_free_cset_time_ms;
149
150 double _recorded_serial_free_cset_time_ms;
151
152 double _cur_fast_reclaim_humongous_time_ms;
153 double _cur_fast_reclaim_humongous_register_time_ms;
154 size_t _cur_fast_reclaim_humongous_total;
155 size_t _cur_fast_reclaim_humongous_candidates;
156 size_t _cur_fast_reclaim_humongous_reclaimed;
157
158 double _cur_verify_before_time_ms;
159 double _cur_verify_after_time_ms;
160
161 double worker_time(GCParPhases phase, uint worker);
162 void note_gc_end();
163 void reset();
164
165 template <class T>
166 void details(T* phase, const char* indent) const;
167
168 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
169 void debug_phase(WorkerDataArray<double>* phase) const;
170 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
171
172 void info_time(const char* name, double value) const;
173 void debug_time(const char* name, double value) const;
174 void trace_time(const char* name, double value) const;
175 void trace_count(const char* name, size_t value) const;
176
177 double print_pre_evacuate_collection_set() const;
178 double print_evacuate_collection_set() const;
179 double print_post_evacuate_collection_set() const;
180 void print_other(double accounted_ms) const;
181
182 public:
183 G1GCPhaseTimes(uint max_gc_threads);
184 void note_gc_start();
185 void print();
186
187 // record the time a phase took in seconds
188 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
189
190 // add a number of seconds to a phase
191 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
192
193 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
194
195 // return the average time for a phase in milliseconds
196 double average_time_ms(GCParPhases phase);
197
198 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
199
200 public:
201
202 void record_prepare_tlab_time_ms(double ms) {
203 _cur_prepare_tlab_time_ms = ms;
204 }
205
206 void record_resize_tlab_time_ms(double ms) {
207 _cur_resize_tlab_time_ms = ms;
208 }
209
210 void record_derived_pointer_table_update_time(double ms) {
211 _cur_derived_pointer_table_update_time_ms = ms;
212 }
213
214 void record_clear_ct_time(double ms) {
215 _cur_clear_ct_time_ms = ms;
216 }
217
218 void record_expand_heap_time(double ms) {
219 _cur_expand_heap_time_ms = ms;
220 }
221
222 void record_par_time(double ms) {
223 _cur_collection_par_time_ms = ms;
224 }
225
226 void record_code_root_fixup_time(double ms) {
227 _cur_collection_code_root_fixup_time_ms = ms;
228 }
229
230 void record_strong_code_root_purge_time(double ms) {
231 _cur_strong_code_root_purge_time_ms = ms;
232 }
233
234 void record_evac_fail_recalc_used_time(double ms) {
235 _cur_evac_fail_recalc_used = ms;
236 }
237
238 void record_evac_fail_remove_self_forwards(double ms) {
239 _cur_evac_fail_remove_self_forwards = ms;
240 }
241
242 void record_string_dedup_fixup_time(double ms) {
243 _cur_string_dedup_fixup_time_ms = ms;
244 }
245
246 void record_ref_proc_time(double ms) {
247 _cur_ref_proc_time_ms = ms;
248 }
249
250 void record_ref_enq_time(double ms) {
251 _cur_ref_enq_time_ms = ms;
252 }
253
254 void record_root_region_scan_wait_time(double time_ms) {
255 _root_region_scan_wait_time_ms = time_ms;
256 }
257
258 void record_total_free_cset_time_ms(double time_ms) {
259 _recorded_total_free_cset_time_ms = time_ms;
260 }
261
262 void record_serial_free_cset_time_ms(double time_ms) {
263 _recorded_serial_free_cset_time_ms = time_ms;
264 }
265
266 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
267 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
268 _cur_fast_reclaim_humongous_total = total;
269 _cur_fast_reclaim_humongous_candidates = candidates;
270 }
271
272 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
273 _cur_fast_reclaim_humongous_time_ms = value;
274 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
275 }
276
277 void record_young_cset_choice_time_ms(double time_ms) {
278 _recorded_young_cset_choice_time_ms = time_ms;
279 }
280
281 void record_non_young_cset_choice_time_ms(double time_ms) {
282 _recorded_non_young_cset_choice_time_ms = time_ms;
283 }
284
285 void record_redirty_logged_cards_time_ms(double time_ms) {
286 _recorded_redirty_logged_cards_time_ms = time_ms;
287 }
288
289 void record_preserve_cm_referents_time_ms(double time_ms) {
290 _recorded_preserve_cm_referents_time_ms = time_ms;
291 }
292
293 void record_merge_pss_time_ms(double time_ms) {
294 _recorded_merge_pss_time_ms = time_ms;
295 }
296
297 void record_start_new_cset_time_ms(double time_ms) {
298 _recorded_start_new_cset_time_ms = time_ms;
299 }
300
301 void record_cur_collection_start_sec(double time_ms) {
302 _cur_collection_start_sec = time_ms;
303 }
304
305 void record_verify_before_time_ms(double time_ms) {
306 _cur_verify_before_time_ms = time_ms;
307 }
308
309 void record_verify_after_time_ms(double time_ms) {
310 _cur_verify_after_time_ms = time_ms;
311 }
312
313 void inc_external_accounted_time_ms(double time_ms) {
314 _external_accounted_time_ms += time_ms;
315 }
316
317 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
318 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
319 }
320
321 double cur_collection_start_sec() {
322 return _cur_collection_start_sec;
323 }
324
325 double cur_collection_par_time_ms() {
326 return _cur_collection_par_time_ms;
327 }
328
329 double cur_clear_ct_time_ms() {
330 return _cur_clear_ct_time_ms;
331 }
332
333 double cur_expand_heap_time_ms() {
334 return _cur_expand_heap_time_ms;
335 }
336
337 double root_region_scan_wait_time_ms() {
338 return _root_region_scan_wait_time_ms;
339 }
340
341 double young_cset_choice_time_ms() {
342 return _recorded_young_cset_choice_time_ms;
343 }
344
345 double total_free_cset_time_ms() {
346 return _recorded_total_free_cset_time_ms;
347 }
348
349 double non_young_cset_choice_time_ms() {
350 return _recorded_non_young_cset_choice_time_ms;
351 }
352
353 double fast_reclaim_humongous_time_ms() {
354 return _cur_fast_reclaim_humongous_time_ms;
355 }
356 };
357
358 class G1GCParPhaseTimesTracker : public StackObj {
359 double _start_time;
360 G1GCPhaseTimes::GCParPhases _phase;
361 G1GCPhaseTimes* _phase_times;
362 uint _worker_id;
363 public:
364 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
365 ~G1GCParPhaseTimesTracker();
366 };
367
368 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP