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_expand_heap_time_ms;
82 double _cur_ref_proc_time_ms;
83 double _cur_ref_enq_time_ms;
84
85 double _cur_collection_start_sec;
86 double _root_region_scan_wait_time_ms;
87
88 double _recorded_young_cset_choice_time_ms;
89 double _recorded_non_young_cset_choice_time_ms;
90
91 double _recorded_redirty_logged_cards_time_ms;
92
93 double _recorded_young_free_cset_time_ms;
94 double _recorded_non_young_free_cset_time_ms;
95
96 double _cur_fast_reclaim_humongous_time_ms;
97 double _cur_fast_reclaim_humongous_register_time_ms;
98 size_t _cur_fast_reclaim_humongous_total;
99 size_t _cur_fast_reclaim_humongous_candidates;
100 size_t _cur_fast_reclaim_humongous_reclaimed;
101
102 double _cur_verify_before_time_ms;
103 double _cur_verify_after_time_ms;
104
105 // Helper methods for detailed logging
106 void print_stats(int level, const char* str, double value);
107 void print_stats(int level, const char* str, size_t value);
108 void print_stats(int level, const char* str, double value, uint workers);
109
110 public:
111 G1GCPhaseTimes(uint max_gc_threads);
112 void note_gc_start(uint active_gc_threads, bool mark_in_progress);
113 void note_gc_end();
114 void print(double pause_time_sec);
115
116 // record the time a phase took in seconds
117 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
118
119 // add a number of seconds to a phase
120 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
121
122 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
123
124 // return the average time for a phase in milliseconds
125 double average_time_ms(GCParPhases phase);
126
127 size_t sum_thread_work_items(GCParPhases phase);
128
129 private:
130 double get_time_ms(GCParPhases phase, uint worker_i);
131 double sum_time_ms(GCParPhases phase);
132 double min_time_ms(GCParPhases phase);
133 double max_time_ms(GCParPhases phase);
134 size_t get_thread_work_item(GCParPhases phase, uint worker_i);
135 double average_thread_work_items(GCParPhases phase);
136 size_t min_thread_work_items(GCParPhases phase);
137 size_t max_thread_work_items(GCParPhases phase);
138
139 public:
140
141 void record_clear_ct_time(double ms) {
142 _cur_clear_ct_time_ms = ms;
143 }
144
145 void record_expand_heap_time(double ms) {
146 _cur_expand_heap_time_ms = ms;
147 }
148
149 void record_par_time(double ms) {
150 _cur_collection_par_time_ms = ms;
151 }
152
153 void record_code_root_fixup_time(double ms) {
154 _cur_collection_code_root_fixup_time_ms = ms;
155 }
156
157 void record_strong_code_root_purge_time(double ms) {
158 _cur_strong_code_root_purge_time_ms = ms;
159 }
160
161 void record_evac_fail_recalc_used_time(double ms) {
162 _cur_evac_fail_recalc_used = ms;
163 }
164
165 void record_evac_fail_restore_remsets(double ms) {
166 _cur_evac_fail_restore_remsets = ms;
167 }
168
169 void record_evac_fail_remove_self_forwards(double ms) {
170 _cur_evac_fail_remove_self_forwards = ms;
171 }
172
173 void record_string_dedup_fixup_time(double ms) {
174 _cur_string_dedup_fixup_time_ms = ms;
175 }
176
177 void record_ref_proc_time(double ms) {
178 _cur_ref_proc_time_ms = ms;
179 }
180
181 void record_ref_enq_time(double ms) {
182 _cur_ref_enq_time_ms = ms;
183 }
184
185 void record_root_region_scan_wait_time(double time_ms) {
186 _root_region_scan_wait_time_ms = time_ms;
187 }
188
189 void record_young_free_cset_time_ms(double time_ms) {
190 _recorded_young_free_cset_time_ms = time_ms;
191 }
192
193 void record_non_young_free_cset_time_ms(double time_ms) {
194 _recorded_non_young_free_cset_time_ms = time_ms;
195 }
196
197 void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
198 _cur_fast_reclaim_humongous_register_time_ms = time_ms;
199 _cur_fast_reclaim_humongous_total = total;
200 _cur_fast_reclaim_humongous_candidates = candidates;
201 }
202
203 void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
204 _cur_fast_reclaim_humongous_time_ms = value;
205 _cur_fast_reclaim_humongous_reclaimed = reclaimed;
206 }
207
208 void record_young_cset_choice_time_ms(double time_ms) {
209 _recorded_young_cset_choice_time_ms = time_ms;
210 }
211
212 void record_non_young_cset_choice_time_ms(double time_ms) {
213 _recorded_non_young_cset_choice_time_ms = time_ms;
214 }
215
216 void record_redirty_logged_cards_time_ms(double time_ms) {
217 _recorded_redirty_logged_cards_time_ms = time_ms;
218 }
219
220 void record_cur_collection_start_sec(double time_ms) {
221 _cur_collection_start_sec = time_ms;
222 }
223
224 void record_verify_before_time_ms(double time_ms) {
225 _cur_verify_before_time_ms = time_ms;
226 }
227
228 void record_verify_after_time_ms(double time_ms) {
229 _cur_verify_after_time_ms = time_ms;
230 }
231
232 double accounted_time_ms();
233
234 double cur_collection_start_sec() {
235 return _cur_collection_start_sec;
236 }
237
238 double cur_collection_par_time_ms() {
239 return _cur_collection_par_time_ms;
240 }
241
242 double cur_clear_ct_time_ms() {
243 return _cur_clear_ct_time_ms;
244 }
245
246 double cur_expand_heap_time_ms() {
247 return _cur_expand_heap_time_ms;
248 }
249
250 double root_region_scan_wait_time_ms() {
251 return _root_region_scan_wait_time_ms;
252 }
253
254 double young_cset_choice_time_ms() {
255 return _recorded_young_cset_choice_time_ms;
256 }
257
258 double young_free_cset_time_ms() {
259 return _recorded_young_free_cset_time_ms;
260 }
261
262 double non_young_cset_choice_time_ms() {
263 return _recorded_non_young_cset_choice_time_ms;
264 }
265
266 double non_young_free_cset_time_ms() {
267 return _recorded_non_young_free_cset_time_ms;
268 }
269
270 double fast_reclaim_humongous_time_ms() {
271 return _cur_fast_reclaim_humongous_time_ms;
272 }
273 };
274
275 class G1GCParPhaseTimesTracker : public StackObj {
276 double _start_time;
277 G1GCPhaseTimes::GCParPhases _phase;
278 G1GCPhaseTimes* _phase_times;
279 uint _worker_id;
280 public:
281 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
282 ~G1GCParPhaseTimesTracker();
283 };
284
285 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP