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