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_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 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
200
201 // return the average time for a phase in milliseconds
202 double average_time_ms(GCParPhases phase);
203
204 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
205
206 public:
207
208 void record_prepare_tlab_time_ms(double ms) {
209 _cur_prepare_tlab_time_ms = ms;
210 }
211
212 void record_resize_tlab_time_ms(double ms) {
213 _cur_resize_tlab_time_ms = ms;
214 }
215
216 void record_derived_pointer_table_update_time(double ms) {
217 _cur_derived_pointer_table_update_time_ms = ms;
218 }
219
220 void record_clear_ct_time(double ms) {
221 _cur_clear_ct_time_ms = ms;
222 }
223
224 void record_expand_heap_time(double ms) {
225 _cur_expand_heap_time_ms = ms;
226 }
227
228 void record_par_time(double ms) {
229 _cur_collection_par_time_ms = ms;
230 }
231
232 void record_code_root_fixup_time(double ms) {
233 _cur_collection_code_root_fixup_time_ms = ms;
234 }
235
236 void record_strong_code_root_purge_time(double ms) {
237 _cur_strong_code_root_purge_time_ms = ms;
238 }
239
240 void record_evac_fail_recalc_used_time(double ms) {
241 _cur_evac_fail_recalc_used = ms;
242 }
243
244 void record_evac_fail_remove_self_forwards(double ms) {
245 _cur_evac_fail_remove_self_forwards = ms;
246 }
247
248 void record_string_dedup_fixup_time(double ms) {
249 _cur_string_dedup_fixup_time_ms = ms;
250 }
251
252 void record_ref_proc_time(double ms) {
253 _cur_ref_proc_time_ms = ms;
254 }
255
256 void record_ref_enq_time(double ms) {
257 _cur_ref_enq_time_ms = ms;
258 }
259
260 void record_root_region_scan_wait_time(double time_ms) {
261 _root_region_scan_wait_time_ms = time_ms;
262 }
263
264 void record_total_free_cset_time_ms(double time_ms) {
265 _recorded_total_free_cset_time_ms = time_ms;
266 }
267
268 void record_serial_free_cset_time_ms(double time_ms) {
269 _recorded_serial_free_cset_time_ms = time_ms;
270 }
271
272 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
273 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
274 _cur_fast_reclaim_humongous_total = total;
275 _cur_fast_reclaim_humongous_candidates = candidates;
276 }
277
278 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
279 _cur_fast_reclaim_humongous_time_ms = value;
280 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
281 }
282
283 void record_young_cset_choice_time_ms(double time_ms) {
284 _recorded_young_cset_choice_time_ms = time_ms;
285 }
286
287 void record_non_young_cset_choice_time_ms(double time_ms) {
288 _recorded_non_young_cset_choice_time_ms = time_ms;
289 }
290
291 void record_redirty_logged_cards_time_ms(double time_ms) {
292 _recorded_redirty_logged_cards_time_ms = time_ms;
293 }
294
295 void record_preserve_cm_referents_time_ms(double time_ms) {
296 _recorded_preserve_cm_referents_time_ms = time_ms;
297 }
298
299 void record_merge_pss_time_ms(double time_ms) {
300 _recorded_merge_pss_time_ms = time_ms;
301 }
302
303 void record_start_new_cset_time_ms(double time_ms) {
304 _recorded_start_new_cset_time_ms = time_ms;
305 }
306
307 void record_cur_collection_start_sec(double time_ms) {
308 _cur_collection_start_sec = time_ms;
309 }
310
311 void record_verify_before_time_ms(double time_ms) {
312 _cur_verify_before_time_ms = time_ms;
313 }
314
315 void record_verify_after_time_ms(double time_ms) {
316 _cur_verify_after_time_ms = time_ms;
317 }
318
319 void inc_external_accounted_time_ms(double time_ms) {
320 _external_accounted_time_ms += time_ms;
321 }
322
323 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
324 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
325 }
326
327 double cur_collection_start_sec() {
328 return _cur_collection_start_sec;
329 }
330
331 double cur_collection_par_time_ms() {
332 return _cur_collection_par_time_ms;
333 }
334
335 double cur_clear_ct_time_ms() {
336 return _cur_clear_ct_time_ms;
337 }
338
339 double cur_expand_heap_time_ms() {
340 return _cur_expand_heap_time_ms;
341 }
342
343 double root_region_scan_wait_time_ms() {
344 return _root_region_scan_wait_time_ms;
345 }
346
347 double young_cset_choice_time_ms() {
348 return _recorded_young_cset_choice_time_ms;
349 }
350
351 double total_free_cset_time_ms() {
352 return _recorded_total_free_cset_time_ms;
353 }
354
355 double non_young_cset_choice_time_ms() {
356 return _recorded_non_young_cset_choice_time_ms;
357 }
358
359 double fast_reclaim_humongous_time_ms() {
360 return _cur_fast_reclaim_humongous_time_ms;
361 }
362
363 ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
364 };
365
366 class G1GCParPhaseTimesTracker : public StackObj {
367 double _start_time;
368 G1GCPhaseTimes::GCParPhases _phase;
369 G1GCPhaseTimes* _phase_times;
370 uint _worker_id;
371 public:
372 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
373 ~G1GCParPhaseTimesTracker();
374 };
375
376 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP