1 /*
2 * Copyright (c) 2013, 2016, 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 private:
80 // Markers for grouping the phases in the GCPhases enum above
81 static const int GCMainParPhasesLast = GCWorkerEnd;
82 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
83 static const int StringDedupPhasesLast = StringDedupTableFixup;
84
85 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
86 WorkerDataArray<size_t>* _update_rs_processed_buffers;
87 WorkerDataArray<size_t>* _termination_attempts;
88 WorkerDataArray<size_t>* _redirtied_cards;
89
90 double _cur_collection_par_time_ms;
91 double _cur_collection_code_root_fixup_time_ms;
92 double _cur_strong_code_root_purge_time_ms;
93
94 double _cur_evac_fail_recalc_used;
95 double _cur_evac_fail_restore_remsets;
96 double _cur_evac_fail_remove_self_forwards;
97
98 double _cur_string_dedup_fixup_time_ms;
99
100 double _cur_prepare_tlab_time_ms;
101 double _cur_resize_tlab_time_ms;
102
103 double _cur_derived_pointer_table_update_time_ms;
104
105 double _cur_clear_ct_time_ms;
106 double _cur_expand_heap_time_ms;
107 double _cur_ref_proc_time_ms;
108 double _cur_ref_enq_time_ms;
109
110 double _cur_collection_start_sec;
111 double _root_region_scan_wait_time_ms;
112
113 double _external_accounted_time_ms;
114
115 double _recorded_clear_claimed_marks_time_ms;
116
117 double _recorded_young_cset_choice_time_ms;
118 double _recorded_non_young_cset_choice_time_ms;
119
120 double _recorded_redirty_logged_cards_time_ms;
121
122 double _recorded_preserve_cm_referents_time_ms;
123
124 double _recorded_merge_pss_time_ms;
125
126 double _recorded_start_new_cset_time_ms;
127
128 double _recorded_total_free_cset_time_ms;
129
130 double _recorded_serial_free_cset_time_ms;
131
132 double _cur_fast_reclaim_humongous_time_ms;
133 double _cur_fast_reclaim_humongous_register_time_ms;
134 size_t _cur_fast_reclaim_humongous_total;
135 size_t _cur_fast_reclaim_humongous_candidates;
136 size_t _cur_fast_reclaim_humongous_reclaimed;
137
138 double _cur_verify_before_time_ms;
139 double _cur_verify_after_time_ms;
140
141 double worker_time(GCParPhases phase, uint worker);
142 void note_gc_end();
143 void reset();
144
145 template <class T>
146 void details(T* phase, const char* indent) const;
147
148 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
149 void debug_phase(WorkerDataArray<double>* phase) const;
150 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
151
152 void info_time(const char* name, double value) const;
153 void debug_time(const char* name, double value) const;
154 void trace_time(const char* name, double value) const;
155 void trace_count(const char* name, size_t value) const;
156
157 double print_pre_evacuate_collection_set() const;
158 double print_evacuate_collection_set() const;
159 double print_post_evacuate_collection_set() const;
160 void print_other(double accounted_ms) const;
161
162 public:
163 G1GCPhaseTimes(uint max_gc_threads);
164 void note_gc_start();
165 void print();
166
167 // record the time a phase took in seconds
168 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
169
170 // add a number of seconds to a phase
171 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
172
173 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
174
175 // return the average time for a phase in milliseconds
176 double average_time_ms(GCParPhases phase);
177
178 size_t sum_thread_work_items(GCParPhases phase);
179
180 public:
181
182 void record_prepare_tlab_time_ms(double ms) {
183 _cur_prepare_tlab_time_ms = ms;
184 }
185
186 void record_resize_tlab_time_ms(double ms) {
187 _cur_resize_tlab_time_ms = ms;
188 }
189
190 void record_derived_pointer_table_update_time(double ms) {
191 _cur_derived_pointer_table_update_time_ms = ms;
192 }
193
194 void record_clear_ct_time(double ms) {
195 _cur_clear_ct_time_ms = ms;
196 }
197
198 void record_expand_heap_time(double ms) {
199 _cur_expand_heap_time_ms = ms;
200 }
201
202 void record_par_time(double ms) {
203 _cur_collection_par_time_ms = ms;
204 }
205
206 void record_code_root_fixup_time(double ms) {
207 _cur_collection_code_root_fixup_time_ms = ms;
208 }
209
210 void record_strong_code_root_purge_time(double ms) {
211 _cur_strong_code_root_purge_time_ms = ms;
212 }
213
214 void record_evac_fail_recalc_used_time(double ms) {
215 _cur_evac_fail_recalc_used = ms;
216 }
217
218 void record_evac_fail_restore_remsets(double ms) {
219 _cur_evac_fail_restore_remsets = ms;
220 }
221
222 void record_evac_fail_remove_self_forwards(double ms) {
223 _cur_evac_fail_remove_self_forwards = ms;
224 }
225
226 void record_string_dedup_fixup_time(double ms) {
227 _cur_string_dedup_fixup_time_ms = ms;
228 }
229
230 void record_ref_proc_time(double ms) {
231 _cur_ref_proc_time_ms = ms;
232 }
233
234 void record_ref_enq_time(double ms) {
235 _cur_ref_enq_time_ms = ms;
236 }
237
238 void record_root_region_scan_wait_time(double time_ms) {
239 _root_region_scan_wait_time_ms = time_ms;
240 }
241
242 void record_total_free_cset_time_ms(double time_ms) {
243 _recorded_total_free_cset_time_ms = time_ms;
244 }
245
246 void record_serial_free_cset_time_ms(double time_ms) {
247 _recorded_serial_free_cset_time_ms = time_ms;
248 }
249
250 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
251 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
252 _cur_fast_reclaim_humongous_total = total;
253 _cur_fast_reclaim_humongous_candidates = candidates;
254 }
255
256 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
257 _cur_fast_reclaim_humongous_time_ms = value;
258 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
259 }
260
261 void record_young_cset_choice_time_ms(double time_ms) {
262 _recorded_young_cset_choice_time_ms = time_ms;
263 }
264
265 void record_non_young_cset_choice_time_ms(double time_ms) {
266 _recorded_non_young_cset_choice_time_ms = time_ms;
267 }
268
269 void record_redirty_logged_cards_time_ms(double time_ms) {
270 _recorded_redirty_logged_cards_time_ms = time_ms;
271 }
272
273 void record_preserve_cm_referents_time_ms(double time_ms) {
274 _recorded_preserve_cm_referents_time_ms = time_ms;
275 }
276
277 void record_merge_pss_time_ms(double time_ms) {
278 _recorded_merge_pss_time_ms = time_ms;
279 }
280
281 void record_start_new_cset_time_ms(double time_ms) {
282 _recorded_start_new_cset_time_ms = time_ms;
283 }
284
285 void record_cur_collection_start_sec(double time_ms) {
286 _cur_collection_start_sec = time_ms;
287 }
288
289 void record_verify_before_time_ms(double time_ms) {
290 _cur_verify_before_time_ms = time_ms;
291 }
292
293 void record_verify_after_time_ms(double time_ms) {
294 _cur_verify_after_time_ms = time_ms;
295 }
296
297 void inc_external_accounted_time_ms(double time_ms) {
298 _external_accounted_time_ms += time_ms;
299 }
300
301 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
302 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
303 }
304
305 double cur_collection_start_sec() {
306 return _cur_collection_start_sec;
307 }
308
309 double cur_collection_par_time_ms() {
310 return _cur_collection_par_time_ms;
311 }
312
313 double cur_clear_ct_time_ms() {
314 return _cur_clear_ct_time_ms;
315 }
316
317 double cur_expand_heap_time_ms() {
318 return _cur_expand_heap_time_ms;
319 }
320
321 double root_region_scan_wait_time_ms() {
322 return _root_region_scan_wait_time_ms;
323 }
324
325 double young_cset_choice_time_ms() {
326 return _recorded_young_cset_choice_time_ms;
327 }
328
329 double total_free_cset_time_ms() {
330 return _recorded_total_free_cset_time_ms;
331 }
332
333 double non_young_cset_choice_time_ms() {
334 return _recorded_non_young_cset_choice_time_ms;
335 }
336
337 double fast_reclaim_humongous_time_ms() {
338 return _cur_fast_reclaim_humongous_time_ms;
339 }
340 };
341
342 class G1GCParPhaseTimesTracker : public StackObj {
343 double _start_time;
344 G1GCPhaseTimes::GCParPhases _phase;
345 G1GCPhaseTimes* _phase_times;
346 uint _worker_id;
347 public:
348 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
349 ~G1GCParPhaseTimesTracker();
350 };
351
352 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP