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 #include "utilities/macros.hpp"
31
32 class LineBuffer;
33
34 template <class T> class WorkerDataArray;
35
36 class G1GCPhaseTimes : public CHeapObj<mtGC> {
37 uint _max_gc_threads;
38 jlong _gc_start_counter;
39 double _gc_pause_time_ms;
40
41 public:
42 enum GCParPhases {
43 GCWorkerStart,
44 ExtRootScan,
45 ThreadRoots,
46 StringTableRoots,
47 UniverseRoots,
48 JNIRoots,
49 ObjectSynchronizerRoots,
50 FlatProfilerRoots,
51 ManagementRoots,
52 SystemDictionaryRoots,
53 CLDGRoots,
54 JVMTIRoots,
55 CMRefRoots,
56 WaitForStrongCLD,
57 WeakCLDRoots,
58 SATBFiltering,
59 UpdateRS,
60 ScanHCC,
61 ScanRS,
62 CodeRoots,
63 #if INCLUDE_AOT
64 AOTCodeRoots,
65 #endif
66 ObjCopy,
67 Termination,
68 Other,
69 GCWorkerTotal,
70 GCWorkerEnd,
71 StringDedupQueueFixup,
72 StringDedupTableFixup,
73 RedirtyCards,
74 PreserveCMReferents,
75 YoungFreeCSet,
76 NonYoungFreeCSet,
77 GCParPhasesSentinel
78 };
79
80 enum GCScanRSWorkItems {
81 ScannedCards,
82 ClaimedCards,
83 SkippedCards
84 };
85
86 private:
87 // Markers for grouping the phases in the GCPhases enum above
88 static const int GCMainParPhasesLast = GCWorkerEnd;
89 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
90 static const int StringDedupPhasesLast = StringDedupTableFixup;
91
92 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
93
94 WorkerDataArray<size_t>* _update_rs_processed_buffers;
95
96 WorkerDataArray<size_t>* _scan_rs_scanned_cards;
97 WorkerDataArray<size_t>* _scan_rs_claimed_cards;
98 WorkerDataArray<size_t>* _scan_rs_skipped_cards;
99
100 WorkerDataArray<size_t>* _termination_attempts;
101
102 WorkerDataArray<size_t>* _redirtied_cards;
103
104 double _cur_collection_par_time_ms;
105 double _cur_collection_code_root_fixup_time_ms;
106 double _cur_strong_code_root_purge_time_ms;
107
108 double _cur_evac_fail_recalc_used;
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 // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
168 void debug_time_for_reference(const char* name, double value) const;
169 void trace_time(const char* name, double value) const;
170 void trace_count(const char* name, size_t value) const;
171
172 double print_pre_evacuate_collection_set() const;
173 double print_evacuate_collection_set() const;
174 double print_post_evacuate_collection_set() const;
175 void print_other(double accounted_ms) const;
176
177 public:
178 G1GCPhaseTimes(uint max_gc_threads);
179 void note_gc_start();
180 void print();
181
182 // record the time a phase took in seconds
183 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
184
185 // add a number of seconds to a phase
186 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
187
188 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
189
190 // return the average time for a phase in milliseconds
191 double average_time_ms(GCParPhases phase);
192
193 size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
194
195 public:
196
197 void record_prepare_tlab_time_ms(double ms) {
198 _cur_prepare_tlab_time_ms = ms;
199 }
200
201 void record_resize_tlab_time_ms(double ms) {
202 _cur_resize_tlab_time_ms = ms;
203 }
204
205 void record_derived_pointer_table_update_time(double ms) {
206 _cur_derived_pointer_table_update_time_ms = ms;
207 }
208
209 void record_clear_ct_time(double ms) {
210 _cur_clear_ct_time_ms = ms;
211 }
212
213 void record_expand_heap_time(double ms) {
214 _cur_expand_heap_time_ms = ms;
215 }
216
217 void record_par_time(double ms) {
218 _cur_collection_par_time_ms = ms;
219 }
220
221 void record_code_root_fixup_time(double ms) {
222 _cur_collection_code_root_fixup_time_ms = ms;
223 }
224
225 void record_strong_code_root_purge_time(double ms) {
226 _cur_strong_code_root_purge_time_ms = ms;
227 }
228
229 void record_evac_fail_recalc_used_time(double ms) {
230 _cur_evac_fail_recalc_used = ms;
231 }
232
233 void record_evac_fail_remove_self_forwards(double ms) {
234 _cur_evac_fail_remove_self_forwards = ms;
235 }
236
237 void record_string_dedup_fixup_time(double ms) {
238 _cur_string_dedup_fixup_time_ms = ms;
239 }
240
241 void record_ref_proc_time(double ms) {
242 _cur_ref_proc_time_ms = ms;
243 }
244
245 void record_ref_enq_time(double ms) {
246 _cur_ref_enq_time_ms = ms;
247 }
248
249 void record_root_region_scan_wait_time(double time_ms) {
250 _root_region_scan_wait_time_ms = time_ms;
251 }
252
253 void record_total_free_cset_time_ms(double time_ms) {
254 _recorded_total_free_cset_time_ms = time_ms;
255 }
256
257 void record_serial_free_cset_time_ms(double time_ms) {
258 _recorded_serial_free_cset_time_ms = time_ms;
259 }
260
261 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
262 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
263 _cur_fast_reclaim_humongous_total = total;
264 _cur_fast_reclaim_humongous_candidates = candidates;
265 }
266
267 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
268 _cur_fast_reclaim_humongous_time_ms = value;
269 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
270 }
271
272 void record_young_cset_choice_time_ms(double time_ms) {
273 _recorded_young_cset_choice_time_ms = time_ms;
274 }
275
276 void record_non_young_cset_choice_time_ms(double time_ms) {
277 _recorded_non_young_cset_choice_time_ms = time_ms;
278 }
279
280 void record_redirty_logged_cards_time_ms(double time_ms) {
281 _recorded_redirty_logged_cards_time_ms = time_ms;
282 }
283
284 void record_preserve_cm_referents_time_ms(double time_ms) {
285 _recorded_preserve_cm_referents_time_ms = time_ms;
286 }
287
288 void record_merge_pss_time_ms(double time_ms) {
289 _recorded_merge_pss_time_ms = time_ms;
290 }
291
292 void record_start_new_cset_time_ms(double time_ms) {
293 _recorded_start_new_cset_time_ms = time_ms;
294 }
295
296 void record_cur_collection_start_sec(double time_ms) {
297 _cur_collection_start_sec = time_ms;
298 }
299
300 void record_verify_before_time_ms(double time_ms) {
301 _cur_verify_before_time_ms = time_ms;
302 }
303
304 void record_verify_after_time_ms(double time_ms) {
305 _cur_verify_after_time_ms = time_ms;
306 }
307
308 void inc_external_accounted_time_ms(double time_ms) {
309 _external_accounted_time_ms += time_ms;
310 }
311
312 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
313 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
314 }
315
316 double cur_collection_start_sec() {
317 return _cur_collection_start_sec;
318 }
319
320 double cur_collection_par_time_ms() {
321 return _cur_collection_par_time_ms;
322 }
323
324 double cur_clear_ct_time_ms() {
325 return _cur_clear_ct_time_ms;
326 }
327
328 double cur_expand_heap_time_ms() {
329 return _cur_expand_heap_time_ms;
330 }
331
332 double root_region_scan_wait_time_ms() {
333 return _root_region_scan_wait_time_ms;
334 }
335
336 double young_cset_choice_time_ms() {
337 return _recorded_young_cset_choice_time_ms;
338 }
339
340 double total_free_cset_time_ms() {
341 return _recorded_total_free_cset_time_ms;
342 }
343
344 double non_young_cset_choice_time_ms() {
345 return _recorded_non_young_cset_choice_time_ms;
346 }
347
348 double fast_reclaim_humongous_time_ms() {
349 return _cur_fast_reclaim_humongous_time_ms;
350 }
351 };
352
353 class G1GCParPhaseTimesTracker : public StackObj {
354 double _start_time;
355 G1GCPhaseTimes::GCParPhases _phase;
356 G1GCPhaseTimes* _phase_times;
357 uint _worker_id;
358 public:
359 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
360 ~G1GCParPhaseTimesTracker();
361 };
362
363 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP