1 /*
2 * Copyright (c) 2003, 2019, 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 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc_implementation/shared/mutableSpace.hpp"
29 #include "memory/collectorPolicy.hpp"
30 #include "memory/defNewGeneration.hpp"
31 #include "memory/genCollectedHeap.hpp"
32 #include "memory/generation.hpp"
33 #include "memory/generationSpec.hpp"
34 #include "memory/heap.hpp"
35 #include "memory/memRegion.hpp"
36 #include "memory/tenuredGeneration.hpp"
37 #include "oops/oop.inline.hpp"
38 #include "runtime/globals.hpp"
39 #include "runtime/javaCalls.hpp"
40 #include "services/classLoadingService.hpp"
41 #include "services/lowMemoryDetector.hpp"
42 #include "services/management.hpp"
43 #include "services/memoryManager.hpp"
44 #include "services/memoryPool.hpp"
45 #include "services/memoryService.hpp"
46 #include "utilities/growableArray.hpp"
47 #include "utilities/macros.hpp"
48 #if INCLUDE_ALL_GCS
49 #include "gc_implementation/shenandoah/shenandoahHeap.inline.hpp"
50 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
51 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
52 #include "gc_implementation/parNew/parNewGeneration.hpp"
53 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
54 #include "gc_implementation/parallelScavenge/psOldGen.hpp"
55 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
56 #include "services/g1MemoryPool.hpp"
57 #include "services/psMemoryPool.hpp"
58 #include "services/shenandoahMemoryPool.hpp"
59 #endif // INCLUDE_ALL_GCS
60
61 GrowableArray<MemoryPool*>* MemoryService::_pools_list =
62 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
63 GrowableArray<MemoryManager*>* MemoryService::_managers_list =
64 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
65
66 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;
67 GCMemoryManager* MemoryService::_major_gc_manager = NULL;
68 MemoryPool* MemoryService::_code_heap_pool = NULL;
69 MemoryPool* MemoryService::_metaspace_pool = NULL;
70 MemoryPool* MemoryService::_compressed_class_pool = NULL;
71
72 class GcThreadCountClosure: public ThreadClosure {
73 private:
74 int _count;
75 public:
76 GcThreadCountClosure() : _count(0) {};
77 void do_thread(Thread* thread);
78 int count() { return _count; }
79 };
80
81 void GcThreadCountClosure::do_thread(Thread* thread) {
82 _count++;
83 }
84
85 void MemoryService::set_universe_heap(CollectedHeap* heap) {
86 CollectedHeap::Name kind = heap->kind();
87 switch (kind) {
88 case CollectedHeap::GenCollectedHeap : {
89 add_gen_collected_heap_info(GenCollectedHeap::heap());
90 break;
91 }
92 #if INCLUDE_ALL_GCS
93 case CollectedHeap::ParallelScavengeHeap : {
94 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());
95 break;
96 }
97 case CollectedHeap::G1CollectedHeap : {
98 add_g1_heap_info(G1CollectedHeap::heap());
99 break;
100 }
101 case CollectedHeap::ShenandoahHeap : {
102 add_shenandoah_heap_info(ShenandoahHeap::heap());
103 break;
104 }
105 #endif // INCLUDE_ALL_GCS
106 default: {
107 guarantee(false, "Unrecognized kind of heap");
108 }
109 }
110
111 // set the GC thread count
112 GcThreadCountClosure gctcc;
113 heap->gc_threads_do(&gctcc);
114 int count = gctcc.count();
115 if (count > 0) {
116 _minor_gc_manager->set_num_gc_threads(count);
117 _major_gc_manager->set_num_gc_threads(count);
118 }
119
120 // All memory pools and memory managers are initialized.
121 //
122 _minor_gc_manager->initialize_gc_stat_info();
123 _major_gc_manager->initialize_gc_stat_info();
124 }
125
126 // Add memory pools for GenCollectedHeap
127 // This function currently only supports two generations collected heap.
128 // The collector for GenCollectedHeap will have two memory managers.
129 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {
130 CollectorPolicy* policy = heap->collector_policy();
131
132 assert(policy->is_two_generation_policy(), "Only support two generations");
133 guarantee(heap->n_gens() == 2, "Only support two-generation heap");
134
135 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy();
136 if (two_gen_policy != NULL) {
137 GenerationSpec** specs = two_gen_policy->generations();
138 Generation::Name kind = specs[0]->name();
139 switch (kind) {
140 case Generation::DefNew:
141 _minor_gc_manager = MemoryManager::get_copy_memory_manager();
142 break;
143 #if INCLUDE_ALL_GCS
144 case Generation::ParNew:
145 case Generation::ASParNew:
146 _minor_gc_manager = MemoryManager::get_parnew_memory_manager();
147 break;
148 #endif // INCLUDE_ALL_GCS
149 default:
150 guarantee(false, "Unrecognized generation spec");
151 break;
152 }
153 if (policy->is_mark_sweep_policy()) {
154 _major_gc_manager = MemoryManager::get_msc_memory_manager();
155 #if INCLUDE_ALL_GCS
156 } else if (policy->is_concurrent_mark_sweep_policy()) {
157 _major_gc_manager = MemoryManager::get_cms_memory_manager();
158 #endif // INCLUDE_ALL_GCS
159 } else {
160 guarantee(false, "Unknown two-gen policy");
161 }
162 } else {
163 guarantee(false, "Non two-gen policy");
164 }
165 _managers_list->append(_minor_gc_manager);
166 _managers_list->append(_major_gc_manager);
167
168 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager);
169 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager);
170 }
171
172 #if INCLUDE_ALL_GCS
173 // Add memory pools for ParallelScavengeHeap
174 // This function currently only supports two generations collected heap.
175 // The collector for ParallelScavengeHeap will have two memory managers.
176 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {
177 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.
178 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();
179 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();
180 _managers_list->append(_minor_gc_manager);
181 _managers_list->append(_major_gc_manager);
182
183 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);
184 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);
185 }
186
187 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {
188 assert(UseG1GC, "sanity");
189
190 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();
191 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();
192 _managers_list->append(_minor_gc_manager);
193 _managers_list->append(_major_gc_manager);
194
195 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
196 add_g1OldGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
197 }
198
199 void MemoryService::add_shenandoah_heap_info(ShenandoahHeap* heap) {
200 assert(UseShenandoahGC, "sanity");
201
202 // We reuse the "minor/major" names, even though they make little sense
203 // in Shenandoah. JDK 10+ makes this right, but not JDK 9-.
204 _major_gc_manager = MemoryManager::get_shenandoah_pauses_memory_manager();
205 _minor_gc_manager = MemoryManager::get_shenandoah_cycles_memory_manager();
206 _managers_list->append(_major_gc_manager);
207 _managers_list->append(_minor_gc_manager);
208
209 ShenandoahMemoryPool* pool = new ShenandoahMemoryPool(heap);
210 _pools_list->append(pool);
211
212 _major_gc_manager->add_pool(pool);
213 _minor_gc_manager->add_pool(pool);
214 }
215
216 #endif // INCLUDE_ALL_GCS
217
218 MemoryPool* MemoryService::add_gen(Generation* gen,
219 const char* name,
220 bool is_heap,
221 bool support_usage_threshold) {
222
223 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
224 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);
225 _pools_list->append(pool);
226 return (MemoryPool*) pool;
227 }
228
229 MemoryPool* MemoryService::add_space(ContiguousSpace* space,
230 const char* name,
231 bool is_heap,
232 size_t max_size,
233 bool support_usage_threshold) {
234 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
235 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);
236
237 _pools_list->append(pool);
238 return (MemoryPool*) pool;
239 }
240
241 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen,
242 const char* name,
243 bool is_heap,
244 size_t max_size,
245 bool support_usage_threshold) {
246 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
247 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold);
248
249 _pools_list->append(pool);
250 return (MemoryPool*) pool;
251 }
252
253 #if INCLUDE_ALL_GCS
254 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,
255 const char* name,
256 bool is_heap,
257 size_t max_size,
258 bool support_usage_threshold) {
259 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
260 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);
261 _pools_list->append(pool);
262 return (MemoryPool*) pool;
263 }
264 #endif // INCLUDE_ALL_GCS
265
266 // Add memory pool(s) for one generation
267 void MemoryService::add_generation_memory_pool(Generation* gen,
268 GCMemoryManager* major_mgr,
269 GCMemoryManager* minor_mgr) {
270 guarantee(gen != NULL, "No generation for memory pool");
271 Generation::Name kind = gen->kind();
272 int index = _pools_list->length();
273
274 switch (kind) {
275 case Generation::DefNew: {
276 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
277 DefNewGeneration* young_gen = (DefNewGeneration*) gen;
278 // Add a memory pool for each space and young gen doesn't
279 // support low memory detection as it is expected to get filled up.
280 MemoryPool* eden = add_space(young_gen->eden(),
281 "Eden Space",
282 true, /* is_heap */
283 young_gen->max_eden_size(),
284 false /* support_usage_threshold */);
285 MemoryPool* survivor = add_survivor_spaces(young_gen,
286 "Survivor Space",
287 true, /* is_heap */
288 young_gen->max_survivor_size(),
289 false /* support_usage_threshold */);
290 break;
291 }
292
293 #if INCLUDE_ALL_GCS
294 case Generation::ParNew:
295 case Generation::ASParNew:
296 {
297 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
298 // Add a memory pool for each space and young gen doesn't
299 // support low memory detection as it is expected to get filled up.
300 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;
301 MemoryPool* eden = add_space(parnew_gen->eden(),
302 "Par Eden Space",
303 true /* is_heap */,
304 parnew_gen->max_eden_size(),
305 false /* support_usage_threshold */);
306 MemoryPool* survivor = add_survivor_spaces(parnew_gen,
307 "Par Survivor Space",
308 true, /* is_heap */
309 parnew_gen->max_survivor_size(),
310 false /* support_usage_threshold */);
311
312 break;
313 }
314 #endif // INCLUDE_ALL_GCS
315
316 case Generation::MarkSweepCompact: {
317 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
318 add_gen(gen,
319 "Tenured Gen",
320 true, /* is_heap */
321 true /* support_usage_threshold */);
322 break;
323 }
324
325 #if INCLUDE_ALL_GCS
326 case Generation::ConcurrentMarkSweep:
327 case Generation::ASConcurrentMarkSweep:
328 {
329 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
330 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen;
331 MemoryPool* pool = add_cms_space(cms->cmsSpace(),
332 "CMS Old Gen",
333 true, /* is_heap */
334 cms->reserved().byte_size(),
335 true /* support_usage_threshold */);
336 break;
337 }
338 #endif // INCLUDE_ALL_GCS
339
340 default:
341 assert(false, "should not reach here");
342 // no memory pool added for others
343 break;
344 }
345
346 assert(major_mgr != NULL, "Should have at least one manager");
347 // Link managers and the memory pools together
348 for (int i = index; i < _pools_list->length(); i++) {
349 MemoryPool* pool = _pools_list->at(i);
350 major_mgr->add_pool(pool);
351 if (minor_mgr != NULL) {
352 minor_mgr->add_pool(pool);
353 }
354 }
355 }
356
357
358 #if INCLUDE_ALL_GCS
359 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen,
360 GCMemoryManager* major_mgr,
361 GCMemoryManager* minor_mgr) {
362 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
363
364 // Add a memory pool for each space and young gen doesn't
365 // support low memory detection as it is expected to get filled up.
366 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen,
367 gen->eden_space(),
368 "PS Eden Space",
369 MemoryPool::Heap,
370 false /* support_usage_threshold */);
371
372 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen,
373 "PS Survivor Space",
374 MemoryPool::Heap,
375 false /* support_usage_threshold */);
376
377 major_mgr->add_pool(eden);
378 major_mgr->add_pool(survivor);
379 minor_mgr->add_pool(eden);
380 minor_mgr->add_pool(survivor);
381 _pools_list->append(eden);
382 _pools_list->append(survivor);
383 }
384
385 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, GCMemoryManager* mgr) {
386 PSGenerationPool* old_gen = new PSGenerationPool(gen,
387 "PS Old Gen",
388 MemoryPool::Heap,
389 true /* support_usage_threshold */);
390 mgr->add_pool(old_gen);
391 _pools_list->append(old_gen);
392 }
393
394 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
395 GCMemoryManager* major_mgr,
396 GCMemoryManager* minor_mgr) {
397 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
398
399 G1EdenPool* eden = new G1EdenPool(g1h);
400 G1SurvivorPool* survivor = new G1SurvivorPool(g1h);
401
402 major_mgr->add_pool(eden);
403 major_mgr->add_pool(survivor);
404 minor_mgr->add_pool(eden);
405 minor_mgr->add_pool(survivor);
406 _pools_list->append(eden);
407 _pools_list->append(survivor);
408 }
409
410 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
411 GCMemoryManager* major_mgr,
412 GCMemoryManager* minor_mgr) {
413 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
414
415 G1OldGenPool* old_gen = new G1OldGenPool(g1h);
416 major_mgr->add_pool(old_gen);
417 minor_mgr->add_pool(old_gen, false /* always_affected_by_gc */);
418 _pools_list->append(old_gen);
419 }
420 #endif // INCLUDE_ALL_GCS
421
422 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) {
423 _code_heap_pool = new CodeHeapPool(heap,
424 "Code Cache",
425 true /* support_usage_threshold */);
426 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager();
427 mgr->add_pool(_code_heap_pool);
428
429 _pools_list->append(_code_heap_pool);
430 _managers_list->append(mgr);
431 }
432
433 void MemoryService::add_metaspace_memory_pools() {
434 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager();
435
436 _metaspace_pool = new MetaspacePool();
437 mgr->add_pool(_metaspace_pool);
438 _pools_list->append(_metaspace_pool);
439
440 if (UseCompressedClassPointers) {
441 _compressed_class_pool = new CompressedKlassSpacePool();
442 mgr->add_pool(_compressed_class_pool);
443 _pools_list->append(_compressed_class_pool);
444 }
445
446 _managers_list->append(mgr);
447 }
448
449 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) {
450 for (int i = 0; i < _managers_list->length(); i++) {
451 MemoryManager* mgr = _managers_list->at(i);
452 if (mgr->is_manager(mh)) {
453 return mgr;
454 }
455 }
456 return NULL;
457 }
458
459 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) {
460 for (int i = 0; i < _pools_list->length(); i++) {
461 MemoryPool* pool = _pools_list->at(i);
462 if (pool->is_pool(ph)) {
463 return pool;
464 }
465 }
466 return NULL;
467 }
468
469 void MemoryService::track_memory_usage() {
470 // Track the peak memory usage
471 for (int i = 0; i < _pools_list->length(); i++) {
472 MemoryPool* pool = _pools_list->at(i);
473 pool->record_peak_memory_usage();
474 }
475
476 // Detect low memory
477 LowMemoryDetector::detect_low_memory();
478 }
479
480 void MemoryService::track_memory_pool_usage(MemoryPool* pool) {
481 // Track the peak memory usage
482 pool->record_peak_memory_usage();
483
484 // Detect low memory
485 if (LowMemoryDetector::is_enabled(pool)) {
486 LowMemoryDetector::detect_low_memory(pool);
487 }
488 }
489
490 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime,
491 bool recordAccumulatedGCTime,
492 bool recordPreGCUsage, bool recordPeakUsage) {
493
494 GCMemoryManager* mgr;
495 if (fullGC) {
496 mgr = _major_gc_manager;
497 } else {
498 mgr = _minor_gc_manager;
499 }
500 assert(mgr->is_gc_memory_manager(), "Sanity check");
501 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime);
502
503 // Track the peak memory usage when GC begins
504 if (recordPeakUsage) {
505 for (int i = 0; i < _pools_list->length(); i++) {
506 MemoryPool* pool = _pools_list->at(i);
507 pool->record_peak_memory_usage();
508 }
509 }
510 }
511
512 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage,
513 bool recordAccumulatedGCTime,
514 bool recordGCEndTime, bool countCollection,
515 GCCause::Cause cause,
516 bool allMemoryPoolsAffected) {
517
518 GCMemoryManager* mgr;
519 if (fullGC) {
520 mgr = (GCMemoryManager*) _major_gc_manager;
521 } else {
522 mgr = (GCMemoryManager*) _minor_gc_manager;
523 }
524 assert(mgr->is_gc_memory_manager(), "Sanity check");
525
526 // register the GC end statistics and memory usage
527 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
528 countCollection, cause, allMemoryPoolsAffected);
529 }
530
531 void MemoryService::oops_do(OopClosure* f) {
532 int i;
533
534 for (i = 0; i < _pools_list->length(); i++) {
535 MemoryPool* pool = _pools_list->at(i);
536 pool->oops_do(f);
537 }
538 for (i = 0; i < _managers_list->length(); i++) {
539 MemoryManager* mgr = _managers_list->at(i);
540 mgr->oops_do(f);
541 }
542 }
543
544 bool MemoryService::set_verbose(bool verbose) {
545 MutexLocker m(Management_lock);
546 // verbose will be set to the previous value
547 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, Flag::MANAGEMENT);
548 assert(succeed, "Setting PrintGC flag fails");
549 ClassLoadingService::reset_trace_class_unloading();
550
551 return verbose;
552 }
553
554 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) {
555 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH);
556 instanceKlassHandle ik(THREAD, k);
557
558 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH);
559
560 JavaValue result(T_VOID);
561 JavaCallArguments args(10);
562 args.push_oop(obj); // receiver
563 args.push_long(usage.init_size_as_jlong()); // Argument 1
564 args.push_long(usage.used_as_jlong()); // Argument 2
565 args.push_long(usage.committed_as_jlong()); // Argument 3
566 args.push_long(usage.max_size_as_jlong()); // Argument 4
567
568 JavaCalls::call_special(&result,
569 ik,
570 vmSymbols::object_initializer_name(),
571 vmSymbols::long_long_long_long_void_signature(),
572 &args,
573 CHECK_NH);
574 return obj;
575 }
576 //
577 // GC manager type depends on the type of Generation. Depending on the space
578 // availablity and vm options the gc uses major gc manager or minor gc
579 // manager or both. The type of gc manager depends on the generation kind.
580 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor
581 // gc manager (so _fullGC is set to false ) and for other generation kinds
582 // doing mark-sweep-compact uses major gc manager (so _fullGC is set
583 // to true).
584 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) {
585 switch (kind) {
586 case Generation::DefNew:
587 #if INCLUDE_ALL_GCS
588 case Generation::ParNew:
589 case Generation::ASParNew:
590 #endif // INCLUDE_ALL_GCS
591 _fullGC=false;
592 break;
593 case Generation::MarkSweepCompact:
594 #if INCLUDE_ALL_GCS
595 case Generation::ConcurrentMarkSweep:
596 case Generation::ASConcurrentMarkSweep:
597 #endif // INCLUDE_ALL_GCS
598 _fullGC=true;
599 break;
600 default:
601 assert(false, "Unrecognized gc generation kind.");
602 }
603 // this has to be called in a stop the world pause and represent
604 // an entire gc pause, start to finish:
605 initialize(_fullGC, cause, true, true, true, true, true, true, true, true);
606 }
607 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC,
608 GCCause::Cause cause,
609 bool allMemoryPoolsAffected,
610 bool recordGCBeginTime,
611 bool recordPreGCUsage,
612 bool recordPeakUsage,
613 bool recordPostGCUsage,
614 bool recordAccumulatedGCTime,
615 bool recordGCEndTime,
616 bool countCollection) {
617 initialize(fullGC, cause, allMemoryPoolsAffected,
618 recordGCBeginTime, recordPreGCUsage, recordPeakUsage,
619 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
620 countCollection);
621 }
622
623 // for a subclass to create then initialize an instance before invoking
624 // the MemoryService
625 void TraceMemoryManagerStats::initialize(bool fullGC,
626 GCCause::Cause cause,
627 bool allMemoryPoolsAffected,
628 bool recordGCBeginTime,
629 bool recordPreGCUsage,
630 bool recordPeakUsage,
631 bool recordPostGCUsage,
632 bool recordAccumulatedGCTime,
633 bool recordGCEndTime,
634 bool countCollection) {
635 _fullGC = fullGC;
636 _allMemoryPoolsAffected = allMemoryPoolsAffected;
637 _recordGCBeginTime = recordGCBeginTime;
638 _recordPreGCUsage = recordPreGCUsage;
639 _recordPeakUsage = recordPeakUsage;
640 _recordPostGCUsage = recordPostGCUsage;
641 _recordAccumulatedGCTime = recordAccumulatedGCTime;
642 _recordGCEndTime = recordGCEndTime;
643 _countCollection = countCollection;
644 _cause = cause;
645
646 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime,
647 _recordPreGCUsage, _recordPeakUsage);
648 }
649
650 TraceMemoryManagerStats::~TraceMemoryManagerStats() {
651 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime,
652 _recordGCEndTime, _countCollection, _cause, _allMemoryPoolsAffected);
653 }