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 "memory/allocation.hpp"
29
30 class LineBuffer;
31
32 template <class T> class WorkerDataArray;
33
34 class G1GCPhaseTimes : public CHeapObj<mtGC> {
35 uint _max_gc_threads;
36 jlong _gc_start_counter;
37 double _gc_pause_time_ms;
38
39 public:
40 enum GCParPhases {
41 GCWorkerStart,
42 ExtRootScan,
43 ThreadRoots,
44 StringTableRoots,
45 UniverseRoots,
46 JNIRoots,
47 ObjectSynchronizerRoots,
48 FlatProfilerRoots,
49 ManagementRoots,
50 SystemDictionaryRoots,
51 CLDGRoots,
52 JVMTIRoots,
53 CMRefRoots,
54 WaitForStrongCLD,
55 WeakCLDRoots,
56 SATBFiltering,
57 UpdateRS,
58 ScanHCC,
59 ScanRS,
60 CodeRoots,
61 ObjCopy,
62 Termination,
63 Other,
64 GCWorkerTotal,
65 GCWorkerEnd,
66 StringDedupQueueFixup,
67 StringDedupTableFixup,
68 RedirtyCards,
69 PreserveCMReferents,
70 YoungFreeCSet,
71 NonYoungFreeCSet,
72 GCParPhasesSentinel
73 };
74
75 private:
76 // Markers for grouping the phases in the GCPhases enum above
77 static const int GCMainParPhasesLast = GCWorkerEnd;
78 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
79 static const int StringDedupPhasesLast = StringDedupTableFixup;
80
81 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
82 WorkerDataArray<size_t>* _update_rs_processed_buffers;
83 WorkerDataArray<size_t>* _termination_attempts;
84 WorkerDataArray<size_t>* _redirtied_cards;
85
86 double _cur_collection_par_time_ms;
87 double _cur_collection_code_root_fixup_time_ms;
88 double _cur_strong_code_root_purge_time_ms;
89
90 double _cur_evac_fail_recalc_used;
91 double _cur_evac_fail_restore_remsets;
92 double _cur_evac_fail_remove_self_forwards;
93
94 double _cur_string_dedup_fixup_time_ms;
95
96 double _cur_clear_ct_time_ms;
97 double _cur_expand_heap_time_ms;
98 double _cur_ref_proc_time_ms;
99 double _cur_ref_enq_time_ms;
100
101 double _cur_collection_start_sec;
102 double _root_region_scan_wait_time_ms;
103
104 double _external_accounted_time_ms;
105
106 double _recorded_clear_claimed_marks_time_ms;
107
108 double _recorded_young_cset_choice_time_ms;
109 double _recorded_non_young_cset_choice_time_ms;
110
111 double _recorded_redirty_logged_cards_time_ms;
112
113 double _recorded_preserve_cm_referents_time_ms;
114
115 double _recorded_merge_pss_time_ms;
116
117 double _recorded_total_free_cset_time_ms;
118
119 double _recorded_serial_free_cset_time_ms;
120
121 double _cur_fast_reclaim_humongous_time_ms;
122 double _cur_fast_reclaim_humongous_register_time_ms;
123 size_t _cur_fast_reclaim_humongous_total;
124 size_t _cur_fast_reclaim_humongous_candidates;
125 size_t _cur_fast_reclaim_humongous_reclaimed;
126
127 double _cur_verify_before_time_ms;
128 double _cur_verify_after_time_ms;
129
130 double worker_time(GCParPhases phase, uint worker);
131 void note_gc_end();
132
133 template <class T>
134 void details(T* phase, const char* indent);
135 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum);
136 void debug_phase(WorkerDataArray<double>* phase);
137 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true);
138
139 public:
140 G1GCPhaseTimes(uint max_gc_threads);
141 void note_gc_start();
142 void print();
143
144 // record the time a phase took in seconds
145 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
146
147 // add a number of seconds to a phase
148 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
149
150 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
151
152 // return the average time for a phase in milliseconds
153 double average_time_ms(GCParPhases phase);
154
155 size_t sum_thread_work_items(GCParPhases phase);
156
157 public:
158
159 void record_clear_ct_time(double ms) {
160 _cur_clear_ct_time_ms = ms;
161 }
162
163 void record_expand_heap_time(double ms) {
164 _cur_expand_heap_time_ms = ms;
165 }
166
167 void record_par_time(double ms) {
168 _cur_collection_par_time_ms = ms;
169 }
170
171 void record_code_root_fixup_time(double ms) {
172 _cur_collection_code_root_fixup_time_ms = ms;
173 }
174
175 void record_strong_code_root_purge_time(double ms) {
176 _cur_strong_code_root_purge_time_ms = ms;
177 }
178
179 void record_evac_fail_recalc_used_time(double ms) {
180 _cur_evac_fail_recalc_used = ms;
181 }
182
183 void record_evac_fail_restore_remsets(double ms) {
184 _cur_evac_fail_restore_remsets = ms;
185 }
186
187 void record_evac_fail_remove_self_forwards(double ms) {
188 _cur_evac_fail_remove_self_forwards = ms;
189 }
190
191 void record_string_dedup_fixup_time(double ms) {
192 _cur_string_dedup_fixup_time_ms = ms;
193 }
194
195 void record_ref_proc_time(double ms) {
196 _cur_ref_proc_time_ms = ms;
197 }
198
199 void record_ref_enq_time(double ms) {
200 _cur_ref_enq_time_ms = ms;
201 }
202
203 void record_root_region_scan_wait_time(double time_ms) {
204 _root_region_scan_wait_time_ms = time_ms;
205 }
206
207 void record_total_free_cset_time_ms(double time_ms) {
208 _recorded_total_free_cset_time_ms = time_ms;
209 }
210
211 void record_serial_free_cset_time_ms(double time_ms) {
212 _recorded_serial_free_cset_time_ms = time_ms;
213 }
214
215 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
216 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
217 _cur_fast_reclaim_humongous_total = total;
218 _cur_fast_reclaim_humongous_candidates = candidates;
219 }
220
221 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
222 _cur_fast_reclaim_humongous_time_ms = value;
223 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
224 }
225
226 void record_young_cset_choice_time_ms(double time_ms) {
227 _recorded_young_cset_choice_time_ms = time_ms;
228 }
229
230 void record_non_young_cset_choice_time_ms(double time_ms) {
231 _recorded_non_young_cset_choice_time_ms = time_ms;
232 }
233
234 void record_redirty_logged_cards_time_ms(double time_ms) {
235 _recorded_redirty_logged_cards_time_ms = time_ms;
236 }
237
238 void record_preserve_cm_referents_time_ms(double time_ms) {
239 _recorded_preserve_cm_referents_time_ms = time_ms;
240 }
241
242 void record_merge_pss_time_ms(double time_ms) {
243 _recorded_merge_pss_time_ms = time_ms;
244 }
245
246 void record_cur_collection_start_sec(double time_ms) {
247 _cur_collection_start_sec = time_ms;
248 }
249
250 void record_verify_before_time_ms(double time_ms) {
251 _cur_verify_before_time_ms = time_ms;
252 }
253
254 void record_verify_after_time_ms(double time_ms) {
255 _cur_verify_after_time_ms = time_ms;
256 }
257
258 void inc_external_accounted_time_ms(double time_ms) {
259 _external_accounted_time_ms += time_ms;
260 }
261
262 void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
263 _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
264 }
265
266 double cur_collection_start_sec() {
267 return _cur_collection_start_sec;
268 }
269
270 double cur_collection_par_time_ms() {
271 return _cur_collection_par_time_ms;
272 }
273
274 double cur_clear_ct_time_ms() {
275 return _cur_clear_ct_time_ms;
276 }
277
278 double cur_expand_heap_time_ms() {
279 return _cur_expand_heap_time_ms;
280 }
281
282 double root_region_scan_wait_time_ms() {
283 return _root_region_scan_wait_time_ms;
284 }
285
286 double young_cset_choice_time_ms() {
287 return _recorded_young_cset_choice_time_ms;
288 }
289
290 double total_free_cset_time_ms() {
291 return _recorded_total_free_cset_time_ms;
292 }
293
294 double non_young_cset_choice_time_ms() {
295 return _recorded_non_young_cset_choice_time_ms;
296 }
297
298 double fast_reclaim_humongous_time_ms() {
299 return _cur_fast_reclaim_humongous_time_ms;
300 }
301 };
302
303 class G1GCParPhaseTimesTracker : public StackObj {
304 double _start_time;
305 G1GCPhaseTimes::GCParPhases _phase;
306 G1GCPhaseTimes* _phase_times;
307 uint _worker_id;
308 public:
309 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
310 ~G1GCParPhaseTimesTracker();
311 };
312
313 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP