1
2 /*
3 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
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_SHENANDOAH_SHENANDOAHPHASETIMEINGS_HPP
26 #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHPHASETIMEINGS_HPP
27
28 #include "memory/allocation.hpp"
29 #include "gc_implementation/shenandoah/shenandoahNumberSeq.hpp"
30 #include "gc_implementation/shenandoah/shenandoahWorkerDataArray.hpp"
31 #include "gc_implementation/shenandoah/shenandoahWorkerDataArray.inline.hpp"
32
33 class ShenandoahCollectorPolicy;
34 class ShenandoahWorkerTimings;
35 class ShenandoahTerminationTimings;
36 class outputStream;
37
38 #define SHENANDOAH_GC_PHASE_DO(f) \
39 f(total_pause_gross, "Total Pauses (G)") \
40 f(total_pause, "Total Pauses (N)") \
41 f(init_mark_gross, "Pause Init Mark (G)") \
42 f(init_mark, "Pause Init Mark (N)") \
43 f(accumulate_stats, " Accumulate Stats") \
44 f(make_parsable, " Make Parsable") \
45 f(clear_liveness, " Clear Liveness") \
46 \
47 /* Per-thread timer block, should have "roots" counters in consistent order */ \
48 f(scan_roots, " Scan Roots") \
49 f(scan_thread_roots, " S: Thread Roots") \
50 f(scan_code_roots, " S: Code Cache Roots") \
51 f(scan_string_table_roots, " S: String Table Roots") \
52 f(scan_universe_roots, " S: Universe Roots") \
53 f(scan_jni_roots, " S: JNI Roots") \
54 f(scan_jni_weak_roots, " S: JNI Weak Roots") \
55 f(scan_synchronizer_roots, " S: Synchronizer Roots") \
56 f(scan_flat_profiler_roots, " S: FlatProfiler Roots") \
57 f(scan_management_roots, " S: Management Roots") \
58 f(scan_system_dictionary_roots, " S: System Dict Roots") \
59 f(scan_cldg_roots, " S: CLDG Roots") \
60 f(scan_jvmti_roots, " S: JVMTI Roots") \
61 f(scan_string_dedup_roots, " S: String Dedup Roots") \
62 f(scan_finish_queues, " S: Finish Queues" ) \
63 \
64 f(resize_tlabs, " Resize TLABs") \
65 \
66 f(final_mark_gross, "Pause Final Mark (G)") \
67 f(final_mark, "Pause Final Mark (N)") \
68 \
69 /* Per-thread timer block, should have "roots" counters in consistent order */ \
70 f(update_roots, " Update Roots") \
71 f(update_thread_roots, " U: Thread Roots") \
72 f(update_code_roots, " U: Code Cache Roots") \
73 f(update_string_table_roots, " U: String Table Roots") \
74 f(update_universe_roots, " U: Universe Roots") \
75 f(update_jni_roots, " U: JNI Roots") \
76 f(update_jni_weak_roots, " U: JNI Weak Roots") \
77 f(update_synchronizer_roots, " U: Synchronizer Roots") \
78 f(update_flat_profiler_roots, " U: FlatProfiler Roots") \
79 f(update_management_roots, " U: Management Roots") \
80 f(update_system_dictionary_roots, " U: System Dict Roots") \
81 f(update_cldg_roots, " U: CLDG Roots") \
82 f(update_jvmti_roots, " U: JVMTI Roots") \
83 f(update_string_dedup_roots, " U: String Dedup Roots") \
84 f(update_finish_queues, " U: Finish Queues") \
85 \
86 f(finish_queues, " Finish Queues") \
87 f(termination, " Termination") \
88 f(weakrefs, " Weak References") \
89 f(weakrefs_process, " Process") \
90 f(weakrefs_termination, " Termination") \
91 f(weakrefs_enqueue, " Enqueue") \
92 f(purge, " System Purge") \
93 f(purge_class_unload, " Unload Classes") \
94 f(purge_par, " Parallel Cleanup") \
95 f(purge_cldg, " CLDG") \
96 f(purge_string_dedup, " String Dedup") \
97 f(complete_liveness, " Complete Liveness") \
98 f(retire_tlabs, " Retire TLABs") \
99 f(sync_pinned, " Sync Pinned") \
100 f(trash_cset, " Trash CSet") \
101 f(prepare_evac, " Prepare Evacuation") \
102 \
103 /* Per-thread timer block, should have "roots" counters in consistent order */ \
104 f(init_evac, " Initial Evacuation") \
105 f(evac_thread_roots, " E: Thread Roots") \
106 f(evac_code_roots, " E: Code Cache Roots") \
107 f(evac_string_table_roots, " E: String Table Roots") \
108 f(evac_universe_roots, " E: Universe Roots") \
109 f(evac_jni_roots, " E: JNI Roots") \
110 f(evac_jni_weak_roots, " E: JNI Weak Roots") \
111 f(evac_synchronizer_roots, " E: Synchronizer Roots") \
112 f(evac_flat_profiler_roots, " E: FlatProfiler Roots") \
113 f(evac_management_roots, " E: Management Roots") \
114 f(evac_system_dictionary_roots, " E: System Dict Roots") \
115 f(evac_cldg_roots, " E: CLDG Roots") \
116 f(evac_jvmti_roots, " E: JVMTI Roots") \
117 f(evac_string_dedup_roots, " E: String Dedup Roots") \
118 f(evac_finish_queues, " E: Finish Queues") \
119 \
120 f(final_evac_gross, "Pause Final Evac (G)") \
121 f(final_evac, "Pause Final Evac (N)") \
122 f(final_evac_retire_gclabs, " Retire GCLABs") \
123 \
124 f(init_update_refs_gross, "Pause Init Update Refs (G)") \
125 f(init_update_refs, "Pause Init Update Refs (N)") \
126 f(init_update_refs_retire_gclabs, " Retire GCLABs") \
127 f(init_update_refs_prepare, " Prepare") \
128 \
129 f(final_update_refs_gross, "Pause Final Update Refs (G)") \
130 f(final_update_refs, "Pause Final Update Refs (N)") \
131 f(final_update_refs_finish_work, " Finish Work") \
132 \
133 /* Per-thread timer block, should have "roots" counters in consistent order */ \
134 f(final_update_refs_roots, " Update Roots") \
135 f(final_update_refs_thread_roots, " UR: Thread Roots") \
136 f(final_update_refs_code_roots, " UR: Code Cache Roots") \
137 f(final_update_refs_string_table_roots, " UR: String Table Roots") \
138 f(final_update_refs_universe_roots, " UR: Universe Roots") \
139 f(final_update_refs_jni_roots, " UR: JNI Roots") \
140 f(final_update_refs_jni_weak_roots, " UR: JNI Weak Roots") \
141 f(final_update_refs_synchronizer_roots, " UR: Synchronizer Roots") \
142 f(final_update_refs_flat_profiler_roots, " UR: FlatProfiler Roots") \
143 f(final_update_refs_management_roots, " UR: Management Roots") \
144 f(final_update_refs_system_dict_roots, " UR: System Dict Roots") \
145 f(final_update_refs_cldg_roots, " UR: CLDG Roots") \
146 f(final_update_refs_jvmti_roots, " UR: JVMTI Roots") \
147 f(final_update_refs_string_dedup_roots, " UR: String Dedup Roots") \
148 f(final_update_refs_finish_queues, " UR: Finish Queues") \
149 \
150 f(final_update_refs_sync_pinned, " Sync Pinned") \
151 f(final_update_refs_trash_cset, " Trash CSet") \
152 \
153 f(degen_gc_gross, "Pause Degenerated GC (G)") \
154 f(degen_gc, "Pause Degenerated GC (N)") \
155 \
156 /* Per-thread timer block, should have "roots" counters in consistent order */ \
157 f(degen_gc_update_roots, " Degen Update Roots") \
158 f(degen_gc_update_thread_roots, " DU: Thread Roots") \
159 f(degen_gc_update_code_roots, " DU: Code Cache Roots") \
160 f(degen_gc_update_string_table_roots, " DU: String Table Roots") \
161 f(degen_gc_update_universe_roots, " DU: Universe Roots") \
162 f(degen_gc_update_jni_roots, " DU: JNI Roots") \
163 f(degen_gc_update_jni_weak_roots, " DU: JNI Weak Roots") \
164 f(degen_gc_update_synchronizer_roots, " DU: Synchronizer Roots") \
165 f(degen_gc_update_flat_profiler_roots, " DU: FlatProfiler Roots") \
166 f(degen_gc_update_management_roots, " DU: Management Roots") \
167 f(degen_gc_update_system_dict_roots, " DU: System Dict Roots") \
168 f(degen_gc_update_cldg_roots, " DU: CLDG Roots") \
169 f(degen_gc_update_jvmti_roots, " DU: JVMTI Roots") \
170 f(degen_gc_update_string_dedup_roots, " DU: String Dedup Roots") \
171 f(degen_gc_update_finish_queues, " DU: Finish Queues") \
172 \
173 f(full_gc_gross, "Pause Full GC (G)") \
174 f(full_gc, "Pause Full GC (N)") \
175 f(full_gc_heapdumps, " Heap Dumps") \
176 f(full_gc_prepare, " Prepare") \
177 \
178 /* Per-thread timer block, should have "roots" counters in consistent order */ \
179 f(full_gc_roots, " Roots") \
180 f(full_gc_thread_roots, " F: Thread Roots") \
181 f(full_gc_code_roots, " F: Code Cache Roots") \
182 f(full_gc_string_table_roots, " F: String Table Roots") \
183 f(full_gc_universe_roots, " F: Universe Roots") \
184 f(full_gc_jni_roots, " F: JNI Roots") \
185 f(full_gc_jni_weak_roots, " F: JNI Weak Roots") \
186 f(full_gc_synchronizer_roots, " F: Synchronizer Roots") \
187 f(full_gc_flat_profiler_roots, " F: FlatProfiler Roots") \
188 f(full_gc_management_roots, " F: Management Roots") \
189 f(full_gc_system_dictionary_roots, " F: System Dict Roots") \
190 f(full_gc_cldg_roots, " F: CLDG Roots") \
191 f(full_gc_jvmti_roots, " F: JVMTI Roots") \
192 f(full_gc_string_dedup_roots, " F: String Dedup Roots") \
193 f(full_gc_finish_queues, " F: Finish Queues") \
194 \
195 f(full_gc_mark, " Mark") \
196 f(full_gc_mark_finish_queues, " Finish Queues") \
197 f(full_gc_mark_termination, " Termination") \
198 f(full_gc_weakrefs, " Weak References") \
199 f(full_gc_weakrefs_process, " Process") \
200 f(full_gc_weakrefs_termination, " Termination") \
201 f(full_gc_weakrefs_enqueue, " Enqueue") \
202 f(full_gc_purge, " System Purge") \
203 f(full_gc_purge_class_unload, " Unload Classes") \
204 f(full_gc_purge_par, " Parallel Cleanup") \
205 f(full_gc_purge_cldg, " CLDG") \
206 f(full_gc_purge_string_dedup, " String Dedup") \
207 f(full_gc_calculate_addresses, " Calculate Addresses") \
208 f(full_gc_calculate_addresses_regular, " Regular Objects") \
209 f(full_gc_calculate_addresses_humong, " Humongous Objects") \
210 f(full_gc_adjust_pointers, " Adjust Pointers") \
211 f(full_gc_copy_objects, " Copy Objects") \
212 f(full_gc_copy_objects_regular, " Regular Objects") \
213 f(full_gc_copy_objects_humong, " Humongous Objects") \
214 f(full_gc_copy_objects_reset_complete, " Reset Complete Bitmap") \
215 f(full_gc_copy_objects_rebuild, " Rebuild Region Sets") \
216 f(full_gc_resize_tlabs, " Resize TLABs") \
217 \
218 /* Longer concurrent phases at the end */ \
219 f(conc_reset, "Concurrent Reset") \
220 f(conc_mark, "Concurrent Marking") \
221 f(conc_termination, " Termination") \
222 f(conc_preclean, "Concurrent Precleaning") \
223 f(conc_evac, "Concurrent Evacuation") \
224 f(conc_update_refs, "Concurrent Update Refs") \
225 f(conc_cleanup, "Concurrent Cleanup") \
226 f(conc_traversal, "Concurrent Traversal") \
227 f(conc_traversal_termination, " Termination") \
228 \
229 f(conc_uncommit, "Concurrent Uncommit") \
230 \
231 /* Unclassified */ \
232 f(pause_other, "Pause Other") \
233 f(conc_other, "Concurrent Other") \
234 // end
235
236 #define SHENANDOAH_GC_PAR_PHASE_DO(f) \
237 f(ThreadRoots, "Thread Roots (ms):") \
238 f(CodeCacheRoots, "CodeCache Roots (ms):") \
239 f(StringTableRoots, "StringTable Roots (ms):") \
240 f(UniverseRoots, "Universe Roots (ms):") \
241 f(JNIRoots, "JNI Handles Roots (ms):") \
242 f(JNIWeakRoots, "JNI Weak Roots (ms):") \
243 f(ObjectSynchronizerRoots, "ObjectSynchronizer Roots (ms):") \
244 f(FlatProfilerRoots, "FlatProfiler Roots (ms):") \
245 f(ManagementRoots, "Management Roots (ms):") \
246 f(SystemDictionaryRoots, "SystemDictionary Roots (ms):") \
247 f(CLDGRoots, "CLDG Roots (ms):") \
248 f(JVMTIRoots, "JVMTI Roots (ms):") \
249 f(StringDedupRoots, "String Dedup Roots (ms):") \
250 f(FinishQueues, "Finish Queues (ms):") \
251 // end
252
253 class ShenandoahPhaseTimings : public CHeapObj<mtGC> {
254 public:
255 #define GC_PHASE_DECLARE_ENUM(type, title) type,
256 enum Phase {
257 SHENANDOAH_GC_PHASE_DO(GC_PHASE_DECLARE_ENUM)
258 _num_phases
259 };
260
261 // These are the subphases of GC phases (scan_roots, update_roots,
262 // init_evac, final_update_refs_roots, and full_gc_roots).
263 // Make sure they are following this order.
264 enum GCParPhases {
265 SHENANDOAH_GC_PAR_PHASE_DO(GC_PHASE_DECLARE_ENUM)
266 GCParPhasesSentinel
267 };
268
269 #undef GC_PHASE_DECLARE_ENUM
270
271 private:
272 struct TimingData {
273 HdrSeq _secs;
274 double _start;
275 };
276
277 private:
278 TimingData _timing_data[_num_phases];
279 static const char* _phase_names[_num_phases];
280
281 ShenandoahWorkerTimings* _worker_times;
282 ShenandoahTerminationTimings* _termination_times;
283
284 ShenandoahCollectorPolicy* _policy;
285
286 public:
287 ShenandoahPhaseTimings();
288
289 ShenandoahWorkerTimings* const worker_times() const { return _worker_times; }
290 ShenandoahTerminationTimings* const termination_times() const { return _termination_times; }
291
292 // record phase start
293 void record_phase_start(Phase phase);
294 // record phase end and return elapsed time in seconds for the phase
295 void record_phase_end(Phase phase);
296 // record an elapsed time for the phase
297 void record_phase_time(Phase phase, double time);
298
299 void record_workers_start(Phase phase);
300 void record_workers_end(Phase phase);
301
302 static const char* phase_name(Phase phase) {
303 assert(phase >= 0 && phase < _num_phases, "Out of bound");
304 return _phase_names[phase];
305 }
306
307 void print_on(outputStream* out) const;
308
309 private:
310 void init_phase_names();
311 void print_summary_sd(outputStream* out, const char* str, const HdrSeq* seq) const;
312 };
313
314 class ShenandoahWorkerTimings : public CHeapObj<mtGC> {
315 private:
316 uint _max_gc_threads;
317 ShenandoahWorkerDataArray<double>* _gc_par_phases[ShenandoahPhaseTimings::GCParPhasesSentinel];
318
319 public:
320 ShenandoahWorkerTimings(uint max_gc_threads);
321
322 // record the time a phase took in seconds
323 void record_time_secs(ShenandoahPhaseTimings::GCParPhases phase, uint worker_i, double secs);
324
325 double average(uint i);
326 void reset(uint i);
327 void print();
328 };
329
330 class ShenandoahTerminationTimings : public CHeapObj<mtGC> {
331 private:
332 ShenandoahWorkerDataArray<double>* _gc_termination_phase;
333 public:
334 ShenandoahTerminationTimings(uint max_gc_threads);
335
336 // record the time a phase took in seconds
337 void record_time_secs(uint worker_i, double secs);
338
339 double average() const;
340 void reset();
341
342 void print() const;
343 };
344
345 #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHGCPHASETIMEINGS_HPP