1/*
2 * Copyright (c) 2013, 2017, 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.
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23 */
24
25#ifndef SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
26#define SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
27
28#include "gc/shared/referenceProcessorPhaseTimes.hpp"
29#include "logging/logLevel.hpp"
30#include "memory/allocation.hpp"
31#include "utilities/macros.hpp"
32
33class LineBuffer;
34class STWGCTimer;
35
36template <class T> class WorkerDataArray;
37
38class G1GCPhaseTimes : public CHeapObj<mtGC> {
39  uint _max_gc_threads;
40  jlong _gc_start_counter;
41  double _gc_pause_time_ms;
42
43 public:
44  enum GCParPhases {
45    GCWorkerStart,
46    ExtRootScan,
47    ThreadRoots,
48    StringTableRoots,
49    UniverseRoots,
50    JNIRoots,
51    ObjectSynchronizerRoots,
52    ManagementRoots,
53    SystemDictionaryRoots,
54    CLDGRoots,
55    JVMTIRoots,
56    CMRefRoots,
57    WaitForStrongCLD,
58    WeakCLDRoots,
59    SATBFiltering,
60    UpdateRS,
61    ScanHCC,
62    ScanRS,
63    CodeRoots,
64#if INCLUDE_AOT
65    AOTCodeRoots,
66#endif
67    ObjCopy,
68    Termination,
69    Other,
70    GCWorkerTotal,
71    GCWorkerEnd,
72    StringDedupQueueFixup,
73    StringDedupTableFixup,
74    RedirtyCards,
75    PreserveCMReferents,
76    YoungFreeCSet,
77    NonYoungFreeCSet,
78    GCParPhasesSentinel
79  };
80
81  enum GCScanRSWorkItems {
82    ScanRSScannedCards,
83    ScanRSClaimedCards,
84    ScanRSSkippedCards
85  };
86
87  enum GCUpdateRSWorkItems {
88    UpdateRSProcessedBuffers,
89    UpdateRSScannedCards,
90    UpdateRSSkippedCards
91  };
92
93 private:
94  // Markers for grouping the phases in the GCPhases enum above
95  static const int GCMainParPhasesLast = GCWorkerEnd;
96  static const int StringDedupPhasesFirst = StringDedupQueueFixup;
97  static const int StringDedupPhasesLast = StringDedupTableFixup;
98
99  WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
100
101  WorkerDataArray<size_t>* _update_rs_processed_buffers;
102  WorkerDataArray<size_t>* _update_rs_scanned_cards;
103  WorkerDataArray<size_t>* _update_rs_skipped_cards;
104
105  WorkerDataArray<size_t>* _scan_rs_scanned_cards;
106  WorkerDataArray<size_t>* _scan_rs_claimed_cards;
107  WorkerDataArray<size_t>* _scan_rs_skipped_cards;
108
109  WorkerDataArray<size_t>* _termination_attempts;
110
111  WorkerDataArray<size_t>* _redirtied_cards;
112
113  double _cur_collection_par_time_ms;
114  double _cur_collection_code_root_fixup_time_ms;
115  double _cur_strong_code_root_purge_time_ms;
116
117  double _cur_evac_fail_recalc_used;
118  double _cur_evac_fail_remove_self_forwards;
119
120  double _cur_string_dedup_fixup_time_ms;
121
122  double _cur_prepare_tlab_time_ms;
123  double _cur_resize_tlab_time_ms;
124
125  double _cur_derived_pointer_table_update_time_ms;
126
127  double _cur_clear_ct_time_ms;
128  double _cur_expand_heap_time_ms;
129  double _cur_ref_proc_time_ms;
130  double _cur_ref_enq_time_ms;
131
132  double _cur_collection_start_sec;
133  double _root_region_scan_wait_time_ms;
134
135  double _external_accounted_time_ms;
136
137  double _recorded_clear_claimed_marks_time_ms;
138
139  double _recorded_young_cset_choice_time_ms;
140  double _recorded_non_young_cset_choice_time_ms;
141
142  double _recorded_redirty_logged_cards_time_ms;
143
144  double _recorded_preserve_cm_referents_time_ms;
145
146  double _recorded_merge_pss_time_ms;
147
148  double _recorded_start_new_cset_time_ms;
149
150  double _recorded_total_free_cset_time_ms;
151
152  double _recorded_serial_free_cset_time_ms;
153
154  double _cur_fast_reclaim_humongous_time_ms;
155  double _cur_fast_reclaim_humongous_register_time_ms;
156  size_t _cur_fast_reclaim_humongous_total;
157  size_t _cur_fast_reclaim_humongous_candidates;
158  size_t _cur_fast_reclaim_humongous_reclaimed;
159
160  double _cur_verify_before_time_ms;
161  double _cur_verify_after_time_ms;
162
163  ReferenceProcessorPhaseTimes _ref_phase_times;
164
165  double worker_time(GCParPhases phase, uint worker);
166  void note_gc_end();
167  void reset();
168
169  template <class T>
170  void details(T* phase, const char* indent) const;
171
172  void log_phase(WorkerDataArray<double>* phase, uint indent, outputStream* out, bool print_sum) const;
173  void debug_phase(WorkerDataArray<double>* phase) const;
174  void trace_phase(WorkerDataArray<double>* phase, bool print_sum = true) const;
175
176  void info_time(const char* name, double value) const;
177  void debug_time(const char* name, double value) const;
178  // This will print logs for both 'gc+phases' and 'gc+phases+ref'.
179  void debug_time_for_reference(const char* name, double value) const;
180  void trace_time(const char* name, double value) const;
181  void trace_count(const char* name, size_t value) const;
182
183  double print_pre_evacuate_collection_set() const;
184  double print_evacuate_collection_set() const;
185  double print_post_evacuate_collection_set() const;
186  void print_other(double accounted_ms) const;
187
188 public:
189  G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads);
190  void note_gc_start();
191  void print();
192
193  // record the time a phase took in seconds
194  void record_time_secs(GCParPhases phase, uint worker_i, double secs);
195
196  // add a number of seconds to a phase
197  void add_time_secs(GCParPhases phase, uint worker_i, double secs);
198
199  void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count, uint index = 0);
200
201  // return the average time for a phase in milliseconds
202  double average_time_ms(GCParPhases phase);
203
204  size_t sum_thread_work_items(GCParPhases phase, uint index = 0);
205
206 public:
207
208  void record_prepare_tlab_time_ms(double ms) {
209    _cur_prepare_tlab_time_ms = ms;
210  }
211
212  void record_resize_tlab_time_ms(double ms) {
213    _cur_resize_tlab_time_ms = ms;
214  }
215
216  void record_derived_pointer_table_update_time(double ms) {
217    _cur_derived_pointer_table_update_time_ms = ms;
218  }
219
220  void record_clear_ct_time(double ms) {
221    _cur_clear_ct_time_ms = ms;
222  }
223
224  void record_expand_heap_time(double ms) {
225    _cur_expand_heap_time_ms = ms;
226  }
227
228  void record_par_time(double ms) {
229    _cur_collection_par_time_ms = ms;
230  }
231
232  void record_code_root_fixup_time(double ms) {
233    _cur_collection_code_root_fixup_time_ms = ms;
234  }
235
236  void record_strong_code_root_purge_time(double ms) {
237    _cur_strong_code_root_purge_time_ms = ms;
238  }
239
240  void record_evac_fail_recalc_used_time(double ms) {
241    _cur_evac_fail_recalc_used = ms;
242  }
243
244  void record_evac_fail_remove_self_forwards(double ms) {
245    _cur_evac_fail_remove_self_forwards = ms;
246  }
247
248  void record_string_dedup_fixup_time(double ms) {
249    _cur_string_dedup_fixup_time_ms = ms;
250  }
251
252  void record_ref_proc_time(double ms) {
253    _cur_ref_proc_time_ms = ms;
254  }
255
256  void record_ref_enq_time(double ms) {
257    _cur_ref_enq_time_ms = ms;
258  }
259
260  void record_root_region_scan_wait_time(double time_ms) {
261    _root_region_scan_wait_time_ms = time_ms;
262  }
263
264  void record_total_free_cset_time_ms(double time_ms) {
265    _recorded_total_free_cset_time_ms = time_ms;
266  }
267
268  void record_serial_free_cset_time_ms(double time_ms) {
269    _recorded_serial_free_cset_time_ms = time_ms;
270  }
271
272  void record_fast_reclaim_humongous_stats(double time_ms, size_t total, size_t candidates) {
273    _cur_fast_reclaim_humongous_register_time_ms = time_ms;
274    _cur_fast_reclaim_humongous_total = total;
275    _cur_fast_reclaim_humongous_candidates = candidates;
276  }
277
278  void record_fast_reclaim_humongous_time_ms(double value, size_t reclaimed) {
279    _cur_fast_reclaim_humongous_time_ms = value;
280    _cur_fast_reclaim_humongous_reclaimed = reclaimed;
281  }
282
283  void record_young_cset_choice_time_ms(double time_ms) {
284    _recorded_young_cset_choice_time_ms = time_ms;
285  }
286
287  void record_non_young_cset_choice_time_ms(double time_ms) {
288    _recorded_non_young_cset_choice_time_ms = time_ms;
289  }
290
291  void record_redirty_logged_cards_time_ms(double time_ms) {
292    _recorded_redirty_logged_cards_time_ms = time_ms;
293  }
294
295  void record_preserve_cm_referents_time_ms(double time_ms) {
296    _recorded_preserve_cm_referents_time_ms = time_ms;
297  }
298
299  void record_merge_pss_time_ms(double time_ms) {
300    _recorded_merge_pss_time_ms = time_ms;
301  }
302
303  void record_start_new_cset_time_ms(double time_ms) {
304    _recorded_start_new_cset_time_ms = time_ms;
305  }
306
307  void record_cur_collection_start_sec(double time_ms) {
308    _cur_collection_start_sec = time_ms;
309  }
310
311  void record_verify_before_time_ms(double time_ms) {
312    _cur_verify_before_time_ms = time_ms;
313  }
314
315  void record_verify_after_time_ms(double time_ms) {
316    _cur_verify_after_time_ms = time_ms;
317  }
318
319  void inc_external_accounted_time_ms(double time_ms) {
320    _external_accounted_time_ms += time_ms;
321  }
322
323  void record_clear_claimed_marks_time_ms(double recorded_clear_claimed_marks_time_ms) {
324    _recorded_clear_claimed_marks_time_ms = recorded_clear_claimed_marks_time_ms;
325  }
326
327  double cur_collection_start_sec() {
328    return _cur_collection_start_sec;
329  }
330
331  double cur_collection_par_time_ms() {
332    return _cur_collection_par_time_ms;
333  }
334
335  double cur_clear_ct_time_ms() {
336    return _cur_clear_ct_time_ms;
337  }
338
339  double cur_expand_heap_time_ms() {
340    return _cur_expand_heap_time_ms;
341  }
342
343  double root_region_scan_wait_time_ms() {
344    return _root_region_scan_wait_time_ms;
345  }
346
347  double young_cset_choice_time_ms() {
348    return _recorded_young_cset_choice_time_ms;
349  }
350
351  double total_free_cset_time_ms() {
352    return _recorded_total_free_cset_time_ms;
353  }
354
355  double non_young_cset_choice_time_ms() {
356    return _recorded_non_young_cset_choice_time_ms;
357  }
358
359  double fast_reclaim_humongous_time_ms() {
360    return _cur_fast_reclaim_humongous_time_ms;
361  }
362
363  ReferenceProcessorPhaseTimes* ref_phase_times() { return &_ref_phase_times; }
364};
365
366class G1GCParPhaseTimesTracker : public StackObj {
367  double _start_time;
368  G1GCPhaseTimes::GCParPhases _phase;
369  G1GCPhaseTimes* _phase_times;
370  uint _worker_id;
371public:
372  G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
373  ~G1GCParPhaseTimesTracker();
374};
375
376#endif // SHARE_VM_GC_G1_G1GCPHASETIMES_HPP
377