1 /*
2 * Copyright (c) 2013, 2014 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_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_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 friend class G1GCParPhasePrinter;
36
37 uint _active_gc_threads;
38 uint _max_gc_threads;
39
40 public:
41 enum GCParPhases {
42 GCWorkerStart,
43 ExtRootScan,
44 SATBFiltering,
45 UpdateRS,
46 ScanRS,
47 CodeRoots,
48 ObjCopy,
49 Termination,
50 Other,
51 GCWorkerTotal,
52 GCWorkerEnd,
53 StringDedupQueueFixup,
54 StringDedupTableFixup,
55 RedirtyCards,
56 GCParPhasesSentinel
57 };
58
59 private:
60 // Markers for grouping the phases in the GCPhases enum above
61 static const int GCMainParPhasesLast = GCWorkerEnd;
62 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
63 static const int StringDedupPhasesLast = StringDedupTableFixup;
64
65 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
66 WorkerDataArray<size_t>* _update_rs_processed_buffers;
67 WorkerDataArray<size_t>* _termination_attempts;
68 WorkerDataArray<size_t>* _redirtied_cards;
69
70 double _cur_collection_par_time_ms;
71 double _cur_collection_code_root_fixup_time_ms;
72 double _cur_strong_code_root_purge_time_ms;
73
74 double _cur_evac_fail_recalc_used;
75 double _cur_evac_fail_restore_remsets;
76 double _cur_evac_fail_remove_self_forwards;
77
78 double _cur_string_dedup_fixup_time_ms;
79
80 double _cur_clear_ct_time_ms;
81 double _cur_ref_proc_time_ms;
82 double _cur_ref_enq_time_ms;
83
84 double _cur_collection_start_sec;
85 double _root_region_scan_wait_time_ms;
86
87 double _recorded_young_cset_choice_time_ms;
88 double _recorded_non_young_cset_choice_time_ms;
89
90 double _recorded_redirty_logged_cards_time_ms;
91
92 double _recorded_young_free_cset_time_ms;
93 double _recorded_non_young_free_cset_time_ms;
94
95 double _cur_fast_reclaim_humongous_time_ms;
96 size_t _cur_fast_reclaim_humongous_total;
97 size_t _cur_fast_reclaim_humongous_candidates;
98 size_t _cur_fast_reclaim_humongous_reclaimed;
99
100 double _cur_verify_before_time_ms;
101 double _cur_verify_after_time_ms;
102
103 // Helper methods for detailed logging
104 void print_stats(int level, const char* str, double value);
105 void print_stats(int level, const char* str, size_t value);
106 void print_stats(int level, const char* str, double value, uint workers);
107
108 public:
109 G1GCPhaseTimes(uint max_gc_threads);
110 void note_gc_start(uint active_gc_threads, bool mark_in_progress);
111 void note_gc_end();
112 void print(double pause_time_sec);
113
114 // record the time a phase took in seconds
115 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
116
117 // add a number of seconds to a phase
118 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
119
120 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
121
122 // return the average time for a phase in milliseconds
123 double average_time_ms(GCParPhases phase);
124
125 size_t sum_thread_work_items(GCParPhases phase);
126
127 private:
128 double get_time_ms(GCParPhases phase, uint worker_i);
129 double sum_time_ms(GCParPhases phase);
130 double min_time_ms(GCParPhases phase);
131 double max_time_ms(GCParPhases phase);
132 size_t get_thread_work_item(GCParPhases phase, uint worker_i);
133 double average_thread_work_items(GCParPhases phase);
134 size_t min_thread_work_items(GCParPhases phase);
135 size_t max_thread_work_items(GCParPhases phase);
136
137 public:
138
139 void record_clear_ct_time(double ms) {
140 _cur_clear_ct_time_ms = ms;
141 }
142
143 void record_par_time(double ms) {
144 _cur_collection_par_time_ms = ms;
145 }
146
147 void record_code_root_fixup_time(double ms) {
148 _cur_collection_code_root_fixup_time_ms = ms;
149 }
150
151 void record_strong_code_root_purge_time(double ms) {
152 _cur_strong_code_root_purge_time_ms = ms;
153 }
154
155 void record_evac_fail_recalc_used_time(double ms) {
156 _cur_evac_fail_recalc_used = ms;
157 }
158
159 void record_evac_fail_restore_remsets(double ms) {
160 _cur_evac_fail_restore_remsets = ms;
161 }
162
163 void record_evac_fail_remove_self_forwards(double ms) {
164 _cur_evac_fail_remove_self_forwards = ms;
165 }
166
167 void record_string_dedup_fixup_time(double ms) {
168 _cur_string_dedup_fixup_time_ms = ms;
169 }
170
171 void record_ref_proc_time(double ms) {
172 _cur_ref_proc_time_ms = ms;
173 }
174
175 void record_ref_enq_time(double ms) {
176 _cur_ref_enq_time_ms = ms;
177 }
178
179 void record_root_region_scan_wait_time(double time_ms) {
180 _root_region_scan_wait_time_ms = time_ms;
181 }
182
183 void record_young_free_cset_time_ms(double time_ms) {
184 _recorded_young_free_cset_time_ms = time_ms;
185 }
186
187 void record_non_young_free_cset_time_ms(double time_ms) {
188 _recorded_non_young_free_cset_time_ms = time_ms;
189 }
190
191 void record_fast_reclaim_humongous_stats(size_t total, size_t candidates) {
192 _cur_fast_reclaim_humongous_total = total;
193 _cur_fast_reclaim_humongous_candidates = candidates;
194 }
195
196 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
197 _cur_fast_reclaim_humongous_time_ms = value;
198 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
199 }
200
201 void record_young_cset_choice_time_ms(double time_ms) {
202 _recorded_young_cset_choice_time_ms = time_ms;
203 }
204
205 void record_non_young_cset_choice_time_ms(double time_ms) {
206 _recorded_non_young_cset_choice_time_ms = time_ms;
207 }
208
209 void record_redirty_logged_cards_time_ms(double time_ms) {
210 _recorded_redirty_logged_cards_time_ms = time_ms;
211 }
212
213 void record_cur_collection_start_sec(double time_ms) {
214 _cur_collection_start_sec = time_ms;
215 }
216
217 void record_verify_before_time_ms(double time_ms) {
218 _cur_verify_before_time_ms = time_ms;
219 }
220
221 void record_verify_after_time_ms(double time_ms) {
222 _cur_verify_after_time_ms = time_ms;
223 }
224
225 double accounted_time_ms();
226
227 double cur_collection_start_sec() {
228 return _cur_collection_start_sec;
229 }
230
231 double cur_collection_par_time_ms() {
232 return _cur_collection_par_time_ms;
233 }
234
235 double cur_clear_ct_time_ms() {
236 return _cur_clear_ct_time_ms;
237 }
238
239 double root_region_scan_wait_time_ms() {
240 return _root_region_scan_wait_time_ms;
241 }
242
243 double young_cset_choice_time_ms() {
244 return _recorded_young_cset_choice_time_ms;
245 }
246
247 double young_free_cset_time_ms() {
248 return _recorded_young_free_cset_time_ms;
249 }
250
251 double non_young_cset_choice_time_ms() {
252 return _recorded_non_young_cset_choice_time_ms;
253 }
254
255 double non_young_free_cset_time_ms() {
256 return _recorded_non_young_free_cset_time_ms;
257 }
258
259 double fast_reclaim_humongous_time_ms() {
260 return _cur_fast_reclaim_humongous_time_ms;
261 }
262 };
263
264 class G1GCParPhaseTimesTracker : public StackObj {
265 double _start_time;
266 G1GCPhaseTimes::GCParPhases _phase;
267 G1GCPhaseTimes* _phase_times;
268 uint _worker_id;
269 public:
270 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
271 ~G1GCParPhaseTimesTracker();
272 };
273
274 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP