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 #include "precompiled.hpp"
26 #include "gc/g1/g1CollectedHeap.inline.hpp"
27 #include "gc/g1/g1GCPhaseTimes.hpp"
28 #include "gc/g1/g1HotCardCache.hpp"
29 #include "gc/g1/g1StringDedup.hpp"
30 #include "gc/g1/workerDataArray.inline.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "logging/log.hpp"
33 #include "logging/logStream.hpp"
34 #include "runtime/timer.hpp"
35 #include "runtime/os.hpp"
36 #include "utilities/macros.hpp"
37
38 static const char* Indents[5] = {"", " ", " ", " ", " "};
39
40 G1GCPhaseTimes::G1GCPhaseTimes(uint max_gc_threads) :
41 _max_gc_threads(max_gc_threads),
42 _gc_start_counter(0),
43 _gc_pause_time_ms(0.0)
44 {
45 assert(max_gc_threads > 0, "Must have some GC threads");
46
47 _gc_par_phases[GCWorkerStart] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Start (ms):");
48 _gc_par_phases[ExtRootScan] = new WorkerDataArray<double>(max_gc_threads, "Ext Root Scanning (ms):");
49
50 // Root scanning phases
51 _gc_par_phases[ThreadRoots] = new WorkerDataArray<double>(max_gc_threads, "Thread Roots (ms):");
52 _gc_par_phases[StringTableRoots] = new WorkerDataArray<double>(max_gc_threads, "StringTable Roots (ms):");
53 _gc_par_phases[UniverseRoots] = new WorkerDataArray<double>(max_gc_threads, "Universe Roots (ms):");
54 _gc_par_phases[JNIRoots] = new WorkerDataArray<double>(max_gc_threads, "JNI Handles Roots (ms):");
55 _gc_par_phases[ObjectSynchronizerRoots] = new WorkerDataArray<double>(max_gc_threads, "ObjectSynchronizer Roots (ms):");
56 _gc_par_phases[FlatProfilerRoots] = new WorkerDataArray<double>(max_gc_threads, "FlatProfiler Roots (ms):");
57 _gc_par_phases[ManagementRoots] = new WorkerDataArray<double>(max_gc_threads, "Management Roots (ms):");
58 _gc_par_phases[SystemDictionaryRoots] = new WorkerDataArray<double>(max_gc_threads, "SystemDictionary Roots (ms):");
59 _gc_par_phases[CLDGRoots] = new WorkerDataArray<double>(max_gc_threads, "CLDG Roots (ms):");
60 _gc_par_phases[JVMTIRoots] = new WorkerDataArray<double>(max_gc_threads, "JVMTI Roots (ms):");
61 _gc_par_phases[CMRefRoots] = new WorkerDataArray<double>(max_gc_threads, "CM RefProcessor Roots (ms):");
62 _gc_par_phases[WaitForStrongCLD] = new WorkerDataArray<double>(max_gc_threads, "Wait For Strong CLD (ms):");
63 _gc_par_phases[WeakCLDRoots] = new WorkerDataArray<double>(max_gc_threads, "Weak CLD Roots (ms):");
135 _recorded_non_young_cset_choice_time_ms = 0.0;
136 _recorded_redirty_logged_cards_time_ms = 0.0;
137 _recorded_preserve_cm_referents_time_ms = 0.0;
138 _recorded_merge_pss_time_ms = 0.0;
139 _recorded_start_new_cset_time_ms = 0.0;
140 _recorded_total_free_cset_time_ms = 0.0;
141 _recorded_serial_free_cset_time_ms = 0.0;
142 _cur_fast_reclaim_humongous_time_ms = 0.0;
143 _cur_fast_reclaim_humongous_register_time_ms = 0.0;
144 _cur_fast_reclaim_humongous_total = 0;
145 _cur_fast_reclaim_humongous_candidates = 0;
146 _cur_fast_reclaim_humongous_reclaimed = 0;
147 _cur_verify_before_time_ms = 0.0;
148 _cur_verify_after_time_ms = 0.0;
149
150 for (int i = 0; i < GCParPhasesSentinel; i++) {
151 if (_gc_par_phases[i] != NULL) {
152 _gc_par_phases[i]->reset();
153 }
154 }
155 }
156
157 void G1GCPhaseTimes::note_gc_start() {
158 _gc_start_counter = os::elapsed_counter();
159 reset();
160 }
161
162 #define ASSERT_PHASE_UNINITIALIZED(phase) \
163 assert(_gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started");
164
165 double G1GCPhaseTimes::worker_time(GCParPhases phase, uint worker) {
166 double value = _gc_par_phases[phase]->get(worker);
167 if (value != WorkerDataArray<double>::uninitialized()) {
168 return value;
169 }
170 return 0.0;
171 }
172
173 void G1GCPhaseTimes::note_gc_end() {
174 _gc_pause_time_ms = TimeHelper::counter_to_millis(os::elapsed_counter() - _gc_start_counter);
267 }
268
269 void G1GCPhaseTimes::trace_phase(WorkerDataArray<double>* phase, bool print_sum) const {
270 LogTarget(Trace, gc, phases) lt;
271 if (lt.is_enabled()) {
272 LogStream ls(lt);
273 log_phase(phase, 3, &ls, print_sum);
274 }
275 }
276
277 #define TIME_FORMAT "%.1lfms"
278
279 void G1GCPhaseTimes::info_time(const char* name, double value) const {
280 log_info(gc, phases)("%s%s: " TIME_FORMAT, Indents[1], name, value);
281 }
282
283 void G1GCPhaseTimes::debug_time(const char* name, double value) const {
284 log_debug(gc, phases)("%s%s: " TIME_FORMAT, Indents[2], name, value);
285 }
286
287 void G1GCPhaseTimes::trace_time(const char* name, double value) const {
288 log_trace(gc, phases)("%s%s: " TIME_FORMAT, Indents[3], name, value);
289 }
290
291 void G1GCPhaseTimes::trace_count(const char* name, size_t value) const {
292 log_trace(gc, phases)("%s%s: " SIZE_FORMAT, Indents[3], name, value);
293 }
294
295 double G1GCPhaseTimes::print_pre_evacuate_collection_set() const {
296 const double sum_ms = _root_region_scan_wait_time_ms +
297 _recorded_young_cset_choice_time_ms +
298 _recorded_non_young_cset_choice_time_ms +
299 _cur_fast_reclaim_humongous_register_time_ms +
300 _recorded_clear_claimed_marks_time_ms;
301
302 info_time("Pre Evacuate Collection Set", sum_ms);
303
304 if (_root_region_scan_wait_time_ms > 0.0) {
305 debug_time("Root Region Scan Waiting", _root_region_scan_wait_time_ms);
306 }
353 _cur_collection_code_root_fixup_time_ms +
354 _recorded_preserve_cm_referents_time_ms +
355 _cur_ref_proc_time_ms +
356 _cur_ref_enq_time_ms +
357 _cur_clear_ct_time_ms +
358 _recorded_merge_pss_time_ms +
359 _cur_strong_code_root_purge_time_ms +
360 _recorded_redirty_logged_cards_time_ms +
361 _recorded_total_free_cset_time_ms +
362 _cur_fast_reclaim_humongous_time_ms +
363 _cur_expand_heap_time_ms +
364 _cur_string_dedup_fixup_time_ms;
365
366 info_time("Post Evacuate Collection Set", sum_ms);
367
368 debug_time("Code Roots Fixup", _cur_collection_code_root_fixup_time_ms);
369
370 debug_time("Preserve CM Refs", _recorded_preserve_cm_referents_time_ms);
371 trace_phase(_gc_par_phases[PreserveCMReferents]);
372
373 debug_time("Reference Processing", _cur_ref_proc_time_ms);
374
375 if (G1StringDedup::is_enabled()) {
376 debug_time("String Dedup Fixup", _cur_string_dedup_fixup_time_ms);
377 debug_phase(_gc_par_phases[StringDedupQueueFixup]);
378 debug_phase(_gc_par_phases[StringDedupTableFixup]);
379 }
380
381 debug_time("Clear Card Table", _cur_clear_ct_time_ms);
382
383 if (G1CollectedHeap::heap()->evacuation_failed()) {
384 debug_time("Evacuation Failure", evac_fail_handling);
385 trace_time("Recalculate Used", _cur_evac_fail_recalc_used);
386 trace_time("Remove Self Forwards",_cur_evac_fail_remove_self_forwards);
387 }
388
389 debug_time("Reference Enqueuing", _cur_ref_enq_time_ms);
390
391 debug_time("Merge Per-Thread State", _recorded_merge_pss_time_ms);
392 debug_time("Code Roots Purge", _cur_strong_code_root_purge_time_ms);
393
394 debug_time("Redirty Cards", _recorded_redirty_logged_cards_time_ms);
395 trace_phase(_gc_par_phases[RedirtyCards]);
396 #if defined(COMPILER2) || INCLUDE_JVMCI
397 debug_time("DerivedPointerTable Update", _cur_derived_pointer_table_update_time_ms);
398 #endif
399
400 debug_time("Free Collection Set", _recorded_total_free_cset_time_ms);
401 trace_time("Free Collection Set Serial", _recorded_serial_free_cset_time_ms);
402 trace_phase(_gc_par_phases[YoungFreeCSet]);
403 trace_phase(_gc_par_phases[NonYoungFreeCSet]);
404
405 if (G1EagerReclaimHumongousObjects) {
406 debug_time("Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms);
407 trace_count("Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed);
408 }
409 debug_time("Start New Collection Set", _recorded_start_new_cset_time_ms);
|
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 #include "precompiled.hpp"
26 #include "gc/g1/g1CollectedHeap.inline.hpp"
27 #include "gc/g1/g1GCPhaseTimes.hpp"
28 #include "gc/g1/g1HotCardCache.hpp"
29 #include "gc/g1/g1StringDedup.hpp"
30 #include "gc/shared/workerDataArray.inline.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "logging/log.hpp"
33 #include "logging/logStream.hpp"
34 #include "runtime/timer.hpp"
35 #include "runtime/os.hpp"
36 #include "utilities/macros.hpp"
37
38 static const char* Indents[5] = {"", " ", " ", " ", " "};
39
40 G1GCPhaseTimes::G1GCPhaseTimes(STWGCTimer* gc_timer, uint max_gc_threads) :
41 _max_gc_threads(max_gc_threads),
42 _gc_start_counter(0),
43 _gc_pause_time_ms(0.0),
44 _ref_phase_times((GCTimer*)gc_timer, max_gc_threads)
45 {
46 assert(max_gc_threads > 0, "Must have some GC threads");
47
48 _gc_par_phases[GCWorkerStart] = new WorkerDataArray<double>(max_gc_threads, "GC Worker Start (ms):");
49 _gc_par_phases[ExtRootScan] = new WorkerDataArray<double>(max_gc_threads, "Ext Root Scanning (ms):");
50
51 // Root scanning phases
52 _gc_par_phases[ThreadRoots] = new WorkerDataArray<double>(max_gc_threads, "Thread Roots (ms):");
53 _gc_par_phases[StringTableRoots] = new WorkerDataArray<double>(max_gc_threads, "StringTable Roots (ms):");
54 _gc_par_phases[UniverseRoots] = new WorkerDataArray<double>(max_gc_threads, "Universe Roots (ms):");
55 _gc_par_phases[JNIRoots] = new WorkerDataArray<double>(max_gc_threads, "JNI Handles Roots (ms):");
56 _gc_par_phases[ObjectSynchronizerRoots] = new WorkerDataArray<double>(max_gc_threads, "ObjectSynchronizer Roots (ms):");
57 _gc_par_phases[FlatProfilerRoots] = new WorkerDataArray<double>(max_gc_threads, "FlatProfiler Roots (ms):");
58 _gc_par_phases[ManagementRoots] = new WorkerDataArray<double>(max_gc_threads, "Management Roots (ms):");
59 _gc_par_phases[SystemDictionaryRoots] = new WorkerDataArray<double>(max_gc_threads, "SystemDictionary Roots (ms):");
60 _gc_par_phases[CLDGRoots] = new WorkerDataArray<double>(max_gc_threads, "CLDG Roots (ms):");
61 _gc_par_phases[JVMTIRoots] = new WorkerDataArray<double>(max_gc_threads, "JVMTI Roots (ms):");
62 _gc_par_phases[CMRefRoots] = new WorkerDataArray<double>(max_gc_threads, "CM RefProcessor Roots (ms):");
63 _gc_par_phases[WaitForStrongCLD] = new WorkerDataArray<double>(max_gc_threads, "Wait For Strong CLD (ms):");
64 _gc_par_phases[WeakCLDRoots] = new WorkerDataArray<double>(max_gc_threads, "Weak CLD Roots (ms):");
136 _recorded_non_young_cset_choice_time_ms = 0.0;
137 _recorded_redirty_logged_cards_time_ms = 0.0;
138 _recorded_preserve_cm_referents_time_ms = 0.0;
139 _recorded_merge_pss_time_ms = 0.0;
140 _recorded_start_new_cset_time_ms = 0.0;
141 _recorded_total_free_cset_time_ms = 0.0;
142 _recorded_serial_free_cset_time_ms = 0.0;
143 _cur_fast_reclaim_humongous_time_ms = 0.0;
144 _cur_fast_reclaim_humongous_register_time_ms = 0.0;
145 _cur_fast_reclaim_humongous_total = 0;
146 _cur_fast_reclaim_humongous_candidates = 0;
147 _cur_fast_reclaim_humongous_reclaimed = 0;
148 _cur_verify_before_time_ms = 0.0;
149 _cur_verify_after_time_ms = 0.0;
150
151 for (int i = 0; i < GCParPhasesSentinel; i++) {
152 if (_gc_par_phases[i] != NULL) {
153 _gc_par_phases[i]->reset();
154 }
155 }
156
157 _ref_phase_times.reset();
158 }
159
160 void G1GCPhaseTimes::note_gc_start() {
161 _gc_start_counter = os::elapsed_counter();
162 reset();
163 }
164
165 #define ASSERT_PHASE_UNINITIALIZED(phase) \
166 assert(_gc_par_phases[phase]->get(i) == uninitialized, "Phase " #phase " reported for thread that was not started");
167
168 double G1GCPhaseTimes::worker_time(GCParPhases phase, uint worker) {
169 double value = _gc_par_phases[phase]->get(worker);
170 if (value != WorkerDataArray<double>::uninitialized()) {
171 return value;
172 }
173 return 0.0;
174 }
175
176 void G1GCPhaseTimes::note_gc_end() {
177 _gc_pause_time_ms = TimeHelper::counter_to_millis(os::elapsed_counter() - _gc_start_counter);
270 }
271
272 void G1GCPhaseTimes::trace_phase(WorkerDataArray<double>* phase, bool print_sum) const {
273 LogTarget(Trace, gc, phases) lt;
274 if (lt.is_enabled()) {
275 LogStream ls(lt);
276 log_phase(phase, 3, &ls, print_sum);
277 }
278 }
279
280 #define TIME_FORMAT "%.1lfms"
281
282 void G1GCPhaseTimes::info_time(const char* name, double value) const {
283 log_info(gc, phases)("%s%s: " TIME_FORMAT, Indents[1], name, value);
284 }
285
286 void G1GCPhaseTimes::debug_time(const char* name, double value) const {
287 log_debug(gc, phases)("%s%s: " TIME_FORMAT, Indents[2], name, value);
288 }
289
290 void G1GCPhaseTimes::debug_time_for_reference(const char* name, double value) const {
291 LogTarget(Debug, gc, phases) lt;
292 LogTarget(Debug, gc, phases, ref) lt2;
293
294 if (lt.is_enabled()) {
295 LogStream ls(lt);
296 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value);
297 } else if (lt2.is_enabled()) {
298 LogStream ls(lt2);
299 ls.print_cr("%s%s: " TIME_FORMAT, Indents[2], name, value);
300 }
301 }
302
303 void G1GCPhaseTimes::trace_time(const char* name, double value) const {
304 log_trace(gc, phases)("%s%s: " TIME_FORMAT, Indents[3], name, value);
305 }
306
307 void G1GCPhaseTimes::trace_count(const char* name, size_t value) const {
308 log_trace(gc, phases)("%s%s: " SIZE_FORMAT, Indents[3], name, value);
309 }
310
311 double G1GCPhaseTimes::print_pre_evacuate_collection_set() const {
312 const double sum_ms = _root_region_scan_wait_time_ms +
313 _recorded_young_cset_choice_time_ms +
314 _recorded_non_young_cset_choice_time_ms +
315 _cur_fast_reclaim_humongous_register_time_ms +
316 _recorded_clear_claimed_marks_time_ms;
317
318 info_time("Pre Evacuate Collection Set", sum_ms);
319
320 if (_root_region_scan_wait_time_ms > 0.0) {
321 debug_time("Root Region Scan Waiting", _root_region_scan_wait_time_ms);
322 }
369 _cur_collection_code_root_fixup_time_ms +
370 _recorded_preserve_cm_referents_time_ms +
371 _cur_ref_proc_time_ms +
372 _cur_ref_enq_time_ms +
373 _cur_clear_ct_time_ms +
374 _recorded_merge_pss_time_ms +
375 _cur_strong_code_root_purge_time_ms +
376 _recorded_redirty_logged_cards_time_ms +
377 _recorded_total_free_cset_time_ms +
378 _cur_fast_reclaim_humongous_time_ms +
379 _cur_expand_heap_time_ms +
380 _cur_string_dedup_fixup_time_ms;
381
382 info_time("Post Evacuate Collection Set", sum_ms);
383
384 debug_time("Code Roots Fixup", _cur_collection_code_root_fixup_time_ms);
385
386 debug_time("Preserve CM Refs", _recorded_preserve_cm_referents_time_ms);
387 trace_phase(_gc_par_phases[PreserveCMReferents]);
388
389 debug_time_for_reference("Reference Processing", _cur_ref_proc_time_ms);
390 _ref_phase_times.print_all_references(2, false);
391
392 if (G1StringDedup::is_enabled()) {
393 debug_time("String Dedup Fixup", _cur_string_dedup_fixup_time_ms);
394 debug_phase(_gc_par_phases[StringDedupQueueFixup]);
395 debug_phase(_gc_par_phases[StringDedupTableFixup]);
396 }
397
398 debug_time("Clear Card Table", _cur_clear_ct_time_ms);
399
400 if (G1CollectedHeap::heap()->evacuation_failed()) {
401 debug_time("Evacuation Failure", evac_fail_handling);
402 trace_time("Recalculate Used", _cur_evac_fail_recalc_used);
403 trace_time("Remove Self Forwards",_cur_evac_fail_remove_self_forwards);
404 }
405
406 debug_time_for_reference("Reference Enqueuing", _cur_ref_enq_time_ms);
407 _ref_phase_times.print_enqueue_phase(2, false);
408
409 debug_time("Merge Per-Thread State", _recorded_merge_pss_time_ms);
410 debug_time("Code Roots Purge", _cur_strong_code_root_purge_time_ms);
411
412 debug_time("Redirty Cards", _recorded_redirty_logged_cards_time_ms);
413 trace_phase(_gc_par_phases[RedirtyCards]);
414 #if defined(COMPILER2) || INCLUDE_JVMCI
415 debug_time("DerivedPointerTable Update", _cur_derived_pointer_table_update_time_ms);
416 #endif
417
418 debug_time("Free Collection Set", _recorded_total_free_cset_time_ms);
419 trace_time("Free Collection Set Serial", _recorded_serial_free_cset_time_ms);
420 trace_phase(_gc_par_phases[YoungFreeCSet]);
421 trace_phase(_gc_par_phases[NonYoungFreeCSet]);
422
423 if (G1EagerReclaimHumongousObjects) {
424 debug_time("Humongous Reclaim", _cur_fast_reclaim_humongous_time_ms);
425 trace_count("Humongous Reclaimed", _cur_fast_reclaim_humongous_reclaimed);
426 }
427 debug_time("Start New Collection Set", _recorded_start_new_cset_time_ms);
|