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 GCParPhasesSentinel
71 };
72
73 private:
74 // Markers for grouping the phases in the GCPhases enum above
75 static const int GCMainParPhasesLast = GCWorkerEnd;
76 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
77 static const int StringDedupPhasesLast = StringDedupTableFixup;
78
79 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
80 WorkerDataArray<size_t>* _update_rs_processed_buffers;
81 WorkerDataArray<size_t>* _termination_attempts;
82 WorkerDataArray<size_t>* _redirtied_cards;
83
84 double _cur_collection_par_time_ms;
85 double _cur_collection_code_root_fixup_time_ms;
86 double _cur_strong_code_root_purge_time_ms;
87
88 double _cur_evac_fail_recalc_used;
89 double _cur_evac_fail_restore_remsets;
90 double _cur_evac_fail_remove_self_forwards;
91
92 double _cur_string_dedup_fixup_time_ms;
93
94 double _cur_clear_ct_time_ms;
95 double _cur_expand_heap_time_ms;
96 double _cur_ref_proc_time_ms;
97 double _cur_ref_enq_time_ms;
98
99 double _cur_collection_start_sec;
100 double _root_region_scan_wait_time_ms;
101
102 double _external_accounted_time_ms;
103
104 double _recorded_young_cset_choice_time_ms;
105 double _recorded_non_young_cset_choice_time_ms;
106
107 double _recorded_redirty_logged_cards_time_ms;
108
109 double _recorded_preserve_cm_referents_time_ms;
110
111 double _recorded_merge_pss_time_ms;
112
113 double _recorded_young_free_cset_time_ms;
114 double _recorded_non_young_free_cset_time_ms;
115
116 double _cur_fast_reclaim_humongous_time_ms;
117 double _cur_fast_reclaim_humongous_register_time_ms;
118 size_t _cur_fast_reclaim_humongous_total;
119 size_t _cur_fast_reclaim_humongous_candidates;
120 size_t _cur_fast_reclaim_humongous_reclaimed;
121
122 double _cur_verify_before_time_ms;
123 double _cur_verify_after_time_ms;
124
125 void note_gc_end();
126
127 template <class T>
128 void details(T* phase, const char* indent);
129 void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum);
130 void debug_phase(WorkerDataArray<double>* phase);
131 void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true);
132
133 public:
134 G1GCPhaseTimes(uint max_gc_threads);
135 void note_gc_start();
136 void print();
137
138 // record the time a phase took in seconds
139 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
140
141 // add a number of seconds to a phase
142 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
143
144 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
145
146 // return the average time for a phase in milliseconds
147 double average_time_ms(GCParPhases phase);
148
149 size_t sum_thread_work_items(GCParPhases phase);
150
151 public:
152
153 void record_clear_ct_time(double ms) {
154 _cur_clear_ct_time_ms = ms;
155 }
156
157 void record_expand_heap_time(double ms) {
158 _cur_expand_heap_time_ms = ms;
159 }
160
161 void record_par_time(double ms) {
162 _cur_collection_par_time_ms = ms;
163 }
164
165 void record_code_root_fixup_time(double ms) {
166 _cur_collection_code_root_fixup_time_ms = ms;
167 }
168
169 void record_strong_code_root_purge_time(double ms) {
170 _cur_strong_code_root_purge_time_ms = ms;
171 }
172
173 void record_evac_fail_recalc_used_time(double ms) {
174 _cur_evac_fail_recalc_used = ms;
175 }
176
177 void record_evac_fail_restore_remsets(double ms) {
178 _cur_evac_fail_restore_remsets = ms;
179 }
180
181 void record_evac_fail_remove_self_forwards(double ms) {
182 _cur_evac_fail_remove_self_forwards = ms;
183 }
184
185 void record_string_dedup_fixup_time(double ms) {
186 _cur_string_dedup_fixup_time_ms = ms;
187 }
188
189 void record_ref_proc_time(double ms) {
190 _cur_ref_proc_time_ms = ms;
191 }
192
193 void record_ref_enq_time(double ms) {
194 _cur_ref_enq_time_ms = ms;
195 }
196
197 void record_root_region_scan_wait_time(double time_ms) {
198 _root_region_scan_wait_time_ms = time_ms;
199 }
200
201 void record_young_free_cset_time_ms(double time_ms) {
202 _recorded_young_free_cset_time_ms = time_ms;
203 }
204
205 void record_non_young_free_cset_time_ms(double time_ms) {
206 _recorded_non_young_free_cset_time_ms = time_ms;
207 }
208
209 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
210 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
211 _cur_fast_reclaim_humongous_total = total;
212 _cur_fast_reclaim_humongous_candidates = candidates;
213 }
214
215 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
216 _cur_fast_reclaim_humongous_time_ms = value;
217 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
218 }
219
220 void record_young_cset_choice_time_ms(double time_ms) {
221 _recorded_young_cset_choice_time_ms = time_ms;
222 }
223
224 void record_non_young_cset_choice_time_ms(double time_ms) {
225 _recorded_non_young_cset_choice_time_ms = time_ms;
226 }
227
228 void record_redirty_logged_cards_time_ms(double time_ms) {
229 _recorded_redirty_logged_cards_time_ms = time_ms;
230 }
231
232 void record_preserve_cm_referents_time_ms(double time_ms) {
233 _recorded_preserve_cm_referents_time_ms = time_ms;
234 }
235
236 void record_merge_pss_time_ms(double time_ms) {
237 _recorded_merge_pss_time_ms = time_ms;
238 }
239
240 void record_cur_collection_start_sec(double time_ms) {
241 _cur_collection_start_sec = time_ms;
242 }
243
244 void record_verify_before_time_ms(double time_ms) {
245 _cur_verify_before_time_ms = time_ms;
246 }
247
248 void record_verify_after_time_ms(double time_ms) {
249 _cur_verify_after_time_ms = time_ms;
250 }
251
252 void inc_external_accounted_time_ms(double time_ms) {
253 _external_accounted_time_ms += time_ms;
254 }
255
256 double cur_collection_start_sec() {
257 return _cur_collection_start_sec;
258 }
259
260 double cur_collection_par_time_ms() {
261 return _cur_collection_par_time_ms;
262 }
263
264 double cur_clear_ct_time_ms() {
265 return _cur_clear_ct_time_ms;
266 }
267
268 double cur_expand_heap_time_ms() {
269 return _cur_expand_heap_time_ms;
270 }
271
272 double root_region_scan_wait_time_ms() {
273 return _root_region_scan_wait_time_ms;
274 }
275
276 double young_cset_choice_time_ms() {
277 return _recorded_young_cset_choice_time_ms;
278 }
279
280 double young_free_cset_time_ms() {
281 return _recorded_young_free_cset_time_ms;
282 }
283
284 double non_young_cset_choice_time_ms() {
285 return _recorded_non_young_cset_choice_time_ms;
286 }
287
288 double non_young_free_cset_time_ms() {
289 return _recorded_non_young_free_cset_time_ms;
290 }
291
292 double fast_reclaim_humongous_time_ms() {
293 return _cur_fast_reclaim_humongous_time_ms;
294 }
295 };
296
297 class G1GCParPhaseTimesTracker : public StackObj {
298 double _start_time;
299 G1GCPhaseTimes::GCParPhases _phase;
300 G1GCPhaseTimes* _phase_times;
301 uint _worker_id;
302 public:
303 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
304 ~G1GCParPhaseTimesTracker();
305 };
306
307 #endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP