1 /* 2 * Copyright (c) 2003, 2015, 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/parallel/mutableSpace.hpp" 29 #include "gc/serial/defNewGeneration.hpp" 30 #include "gc/serial/tenuredGeneration.hpp" 31 #include "gc/shared/collectorPolicy.hpp" 32 #include "gc/shared/genCollectedHeap.hpp" 33 #include "gc/shared/generation.hpp" 34 #include "gc/shared/generationSpec.hpp" 35 #include "logging/logConfiguration.hpp" 36 #include "memory/heap.hpp" 37 #include "memory/memRegion.hpp" 38 #include "oops/oop.inline.hpp" 39 #include "runtime/globals.hpp" 40 #include "runtime/javaCalls.hpp" 41 #include "services/classLoadingService.hpp" 42 #include "services/lowMemoryDetector.hpp" 43 #include "services/management.hpp" 44 #include "services/memoryManager.hpp" 45 #include "services/memoryPool.hpp" 46 #include "services/memoryService.hpp" 47 #include "utilities/growableArray.hpp" 48 #include "utilities/macros.hpp" 49 #if INCLUDE_ALL_GCS 50 #include "gc/cms/concurrentMarkSweepGeneration.hpp" 51 #include "gc/cms/parNewGeneration.hpp" 52 #include "gc/g1/g1CollectedHeap.inline.hpp" 53 #include "gc/parallel/parallelScavengeHeap.hpp" 54 #include "gc/parallel/psOldGen.hpp" 55 #include "gc/parallel/psYoungGen.hpp" 56 #include "services/g1MemoryPool.hpp" 57 #include "services/psMemoryPool.hpp" 58 #endif // INCLUDE_ALL_GCS 59 60 GrowableArray<MemoryPool*>* MemoryService::_pools_list = 61 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true); 62 GrowableArray<MemoryManager*>* MemoryService::_managers_list = 63 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true); 64 65 GCMemoryManager* MemoryService::_minor_gc_manager = NULL; 66 GCMemoryManager* MemoryService::_major_gc_manager = NULL; 67 MemoryManager* MemoryService::_code_cache_manager = NULL; 68 GrowableArray<MemoryPool*>* MemoryService::_code_heap_pools = 69 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_code_heap_pools_size, true); 70 MemoryPool* MemoryService::_metaspace_pool = NULL; 71 MemoryPool* MemoryService::_compressed_class_pool = NULL; 72 73 class GcThreadCountClosure: public ThreadClosure { 74 private: 75 int _count; 76 public: 77 GcThreadCountClosure() : _count(0) {}; 78 void do_thread(Thread* thread); 79 int count() { return _count; } 80 }; 81 82 void GcThreadCountClosure::do_thread(Thread* thread) { 83 _count++; 84 } 85 86 void MemoryService::set_universe_heap(CollectedHeap* heap) { 87 CollectedHeap::Name kind = heap->kind(); 88 switch (kind) { 89 case CollectedHeap::GenCollectedHeap : { 90 add_gen_collected_heap_info(GenCollectedHeap::heap()); 91 break; 92 } 93 #if INCLUDE_ALL_GCS 94 case CollectedHeap::ParallelScavengeHeap : { 95 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap()); 96 break; 97 } 98 case CollectedHeap::G1CollectedHeap : { 99 add_g1_heap_info(G1CollectedHeap::heap()); 100 break; 101 } 102 case CollectedHeap::EpsilonCollectedHeap : { 103 add_epsilon_heap_info(); 104 break; 105 } 106 #endif // INCLUDE_ALL_GCS 107 default: { 108 guarantee(false, "Unrecognized kind of heap"); 109 } 110 } 111 112 // set the GC thread count 113 GcThreadCountClosure gctcc; 114 heap->gc_threads_do(&gctcc); 115 int count = gctcc.count(); 116 if (count > 0) { 117 _minor_gc_manager->set_num_gc_threads(count); 118 _major_gc_manager->set_num_gc_threads(count); 119 } 120 121 // All memory pools and memory managers are initialized. 122 // 123 _minor_gc_manager->initialize_gc_stat_info(); 124 _major_gc_manager->initialize_gc_stat_info(); 125 } 126 127 // Add memory pools for GenCollectedHeap 128 // This function currently only supports two generations collected heap. 129 // The collector for GenCollectedHeap will have two memory managers. 130 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) { 131 CollectorPolicy* policy = heap->collector_policy(); 132 133 assert(policy->is_generation_policy(), "Only support two generations"); 134 GenCollectorPolicy* gen_policy = policy->as_generation_policy(); 135 if (gen_policy != NULL) { 136 Generation::Name kind = gen_policy->young_gen_spec()->name(); 137 switch (kind) { 138 case Generation::DefNew: 139 _minor_gc_manager = MemoryManager::get_copy_memory_manager(); 140 break; 141 #if INCLUDE_ALL_GCS 142 case Generation::ParNew: 143 _minor_gc_manager = MemoryManager::get_parnew_memory_manager(); 144 break; 145 #endif // INCLUDE_ALL_GCS 146 default: 147 guarantee(false, "Unrecognized generation spec"); 148 break; 149 } 150 if (policy->is_mark_sweep_policy()) { 151 _major_gc_manager = MemoryManager::get_msc_memory_manager(); 152 #if INCLUDE_ALL_GCS 153 } else if (policy->is_concurrent_mark_sweep_policy()) { 154 _major_gc_manager = MemoryManager::get_cms_memory_manager(); 155 #endif // INCLUDE_ALL_GCS 156 } else { 157 guarantee(false, "Unknown two-gen policy"); 158 } 159 } else { 160 guarantee(false, "Non two-gen policy"); 161 } 162 _managers_list->append(_minor_gc_manager); 163 _managers_list->append(_major_gc_manager); 164 165 add_generation_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); 166 add_generation_memory_pool(heap->old_gen(), _major_gc_manager); 167 } 168 169 #if INCLUDE_ALL_GCS 170 // Add memory pools for ParallelScavengeHeap 171 // This function currently only supports two generations collected heap. 172 // The collector for ParallelScavengeHeap will have two memory managers. 173 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) { 174 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC. 175 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager(); 176 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager(); 177 _managers_list->append(_minor_gc_manager); 178 _managers_list->append(_major_gc_manager); 179 180 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); 181 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager); 182 } 183 184 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) { 185 assert(UseG1GC, "sanity"); 186 187 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager(); 188 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager(); 189 _managers_list->append(_minor_gc_manager); 190 _managers_list->append(_major_gc_manager); 191 192 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); 193 add_g1OldGen_memory_pool(g1h, _major_gc_manager); 194 } 195 196 void MemoryService::add_epsilon_heap_info() { 197 assert(UseEpsilonGC, "sanity"); 198 199 _minor_gc_manager = MemoryManager::get_epsilon_memory_manager(); 200 _major_gc_manager = MemoryManager::get_epsilon_memory_manager(); 201 _managers_list->append(_minor_gc_manager); 202 _managers_list->append(_major_gc_manager); 203 // TODO: fix these? 204 // add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); 205 // add_g1OldGen_memory_pool(g1h, _major_gc_manager); 206 } 207 #endif // INCLUDE_ALL_GCS 208 209 MemoryPool* MemoryService::add_gen(Generation* gen, 210 const char* name, 211 bool is_heap, 212 bool support_usage_threshold) { 213 214 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); 215 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold); 216 _pools_list->append(pool); 217 return (MemoryPool*) pool; 218 } 219 220 MemoryPool* MemoryService::add_space(ContiguousSpace* space, 221 const char* name, 222 bool is_heap, 223 size_t max_size, 224 bool support_usage_threshold) { 225 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); 226 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold); 227 228 _pools_list->append(pool); 229 return (MemoryPool*) pool; 230 } 231 232 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* young_gen, 233 const char* name, 234 bool is_heap, 235 size_t max_size, 236 bool support_usage_threshold) { 237 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); 238 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(young_gen, name, type, max_size, support_usage_threshold); 239 240 _pools_list->append(pool); 241 return (MemoryPool*) pool; 242 } 243 244 #if INCLUDE_ALL_GCS 245 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space, 246 const char* name, 247 bool is_heap, 248 size_t max_size, 249 bool support_usage_threshold) { 250 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); 251 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold); 252 _pools_list->append(pool); 253 return (MemoryPool*) pool; 254 } 255 #endif // INCLUDE_ALL_GCS 256 257 // Add memory pool(s) for one generation 258 void MemoryService::add_generation_memory_pool(Generation* gen, 259 MemoryManager* major_mgr, 260 MemoryManager* minor_mgr) { 261 guarantee(gen != NULL, "No generation for memory pool"); 262 Generation::Name kind = gen->kind(); 263 int index = _pools_list->length(); 264 265 switch (kind) { 266 case Generation::DefNew: { 267 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); 268 DefNewGeneration* young_gen = (DefNewGeneration*) gen; 269 // Add a memory pool for each space and young gen doesn't 270 // support low memory detection as it is expected to get filled up. 271 MemoryPool* eden = add_space(young_gen->eden(), 272 "Eden Space", 273 true, /* is_heap */ 274 young_gen->max_eden_size(), 275 false /* support_usage_threshold */); 276 MemoryPool* survivor = add_survivor_spaces(young_gen, 277 "Survivor Space", 278 true, /* is_heap */ 279 young_gen->max_survivor_size(), 280 false /* support_usage_threshold */); 281 break; 282 } 283 284 #if INCLUDE_ALL_GCS 285 case Generation::ParNew: 286 { 287 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); 288 // Add a memory pool for each space and young gen doesn't 289 // support low memory detection as it is expected to get filled up. 290 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen; 291 MemoryPool* eden = add_space(parnew_gen->eden(), 292 "Par Eden Space", 293 true /* is_heap */, 294 parnew_gen->max_eden_size(), 295 false /* support_usage_threshold */); 296 MemoryPool* survivor = add_survivor_spaces(parnew_gen, 297 "Par Survivor Space", 298 true, /* is_heap */ 299 parnew_gen->max_survivor_size(), 300 false /* support_usage_threshold */); 301 302 break; 303 } 304 #endif // INCLUDE_ALL_GCS 305 306 case Generation::MarkSweepCompact: { 307 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); 308 add_gen(gen, 309 "Tenured Gen", 310 true, /* is_heap */ 311 true /* support_usage_threshold */); 312 break; 313 } 314 315 #if INCLUDE_ALL_GCS 316 case Generation::ConcurrentMarkSweep: 317 { 318 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); 319 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen; 320 MemoryPool* pool = add_cms_space(cms->cmsSpace(), 321 "CMS Old Gen", 322 true, /* is_heap */ 323 cms->reserved().byte_size(), 324 true /* support_usage_threshold */); 325 break; 326 } 327 #endif // INCLUDE_ALL_GCS 328 329 default: 330 assert(false, "should not reach here"); 331 // no memory pool added for others 332 break; 333 } 334 335 assert(major_mgr != NULL, "Should have at least one manager"); 336 // Link managers and the memory pools together 337 for (int i = index; i < _pools_list->length(); i++) { 338 MemoryPool* pool = _pools_list->at(i); 339 major_mgr->add_pool(pool); 340 if (minor_mgr != NULL) { 341 minor_mgr->add_pool(pool); 342 } 343 } 344 } 345 346 347 #if INCLUDE_ALL_GCS 348 void MemoryService::add_psYoung_memory_pool(PSYoungGen* young_gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) { 349 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); 350 351 // Add a memory pool for each space and young gen doesn't 352 // support low memory detection as it is expected to get filled up. 353 EdenMutableSpacePool* eden = new EdenMutableSpacePool(young_gen, 354 young_gen->eden_space(), 355 "PS Eden Space", 356 MemoryPool::Heap, 357 false /* support_usage_threshold */); 358 359 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(young_gen, 360 "PS Survivor Space", 361 MemoryPool::Heap, 362 false /* support_usage_threshold */); 363 364 major_mgr->add_pool(eden); 365 major_mgr->add_pool(survivor); 366 minor_mgr->add_pool(eden); 367 minor_mgr->add_pool(survivor); 368 _pools_list->append(eden); 369 _pools_list->append(survivor); 370 } 371 372 void MemoryService::add_psOld_memory_pool(PSOldGen* old_gen, MemoryManager* mgr) { 373 PSGenerationPool* old_gen_pool = new PSGenerationPool(old_gen, 374 "PS Old Gen", 375 MemoryPool::Heap, 376 true /* support_usage_threshold */); 377 mgr->add_pool(old_gen_pool); 378 _pools_list->append(old_gen_pool); 379 } 380 381 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h, 382 MemoryManager* major_mgr, 383 MemoryManager* minor_mgr) { 384 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers"); 385 386 G1EdenPool* eden = new G1EdenPool(g1h); 387 G1SurvivorPool* survivor = new G1SurvivorPool(g1h); 388 389 major_mgr->add_pool(eden); 390 major_mgr->add_pool(survivor); 391 minor_mgr->add_pool(eden); 392 minor_mgr->add_pool(survivor); 393 _pools_list->append(eden); 394 _pools_list->append(survivor); 395 } 396 397 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h, 398 MemoryManager* mgr) { 399 assert(mgr != NULL, "should have one manager"); 400 401 G1OldGenPool* old_gen = new G1OldGenPool(g1h); 402 mgr->add_pool(old_gen); 403 _pools_list->append(old_gen); 404 } 405 #endif // INCLUDE_ALL_GCS 406 407 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap, const char* name) { 408 // Create new memory pool for this heap 409 MemoryPool* code_heap_pool = new CodeHeapPool(heap, name, true /* support_usage_threshold */); 410 411 // Append to lists 412 _code_heap_pools->append(code_heap_pool); 413 _pools_list->append(code_heap_pool); 414 415 if (_code_cache_manager == NULL) { 416 // Create CodeCache memory manager 417 _code_cache_manager = MemoryManager::get_code_cache_memory_manager(); 418 _managers_list->append(_code_cache_manager); 419 } 420 421 _code_cache_manager->add_pool(code_heap_pool); 422 } 423 424 void MemoryService::add_metaspace_memory_pools() { 425 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager(); 426 427 _metaspace_pool = new MetaspacePool(); 428 mgr->add_pool(_metaspace_pool); 429 _pools_list->append(_metaspace_pool); 430 431 if (UseCompressedClassPointers) { 432 _compressed_class_pool = new CompressedKlassSpacePool(); 433 mgr->add_pool(_compressed_class_pool); 434 _pools_list->append(_compressed_class_pool); 435 } 436 437 _managers_list->append(mgr); 438 } 439 440 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { 441 for (int i = 0; i < _managers_list->length(); i++) { 442 MemoryManager* mgr = _managers_list->at(i); 443 if (mgr->is_manager(mh)) { 444 return mgr; 445 } 446 } 447 return NULL; 448 } 449 450 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { 451 for (int i = 0; i < _pools_list->length(); i++) { 452 MemoryPool* pool = _pools_list->at(i); 453 if (pool->is_pool(ph)) { 454 return pool; 455 } 456 } 457 return NULL; 458 } 459 460 void MemoryService::track_memory_usage() { 461 // Track the peak memory usage 462 for (int i = 0; i < _pools_list->length(); i++) { 463 MemoryPool* pool = _pools_list->at(i); 464 pool->record_peak_memory_usage(); 465 } 466 467 // Detect low memory 468 LowMemoryDetector::detect_low_memory(); 469 } 470 471 void MemoryService::track_memory_pool_usage(MemoryPool* pool) { 472 // Track the peak memory usage 473 pool->record_peak_memory_usage(); 474 475 // Detect low memory 476 if (LowMemoryDetector::is_enabled(pool)) { 477 LowMemoryDetector::detect_low_memory(pool); 478 } 479 } 480 481 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime, 482 bool recordAccumulatedGCTime, 483 bool recordPreGCUsage, bool recordPeakUsage) { 484 485 GCMemoryManager* mgr; 486 if (fullGC) { 487 mgr = _major_gc_manager; 488 } else { 489 mgr = _minor_gc_manager; 490 } 491 assert(mgr->is_gc_memory_manager(), "Sanity check"); 492 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); 493 494 // Track the peak memory usage when GC begins 495 if (recordPeakUsage) { 496 for (int i = 0; i < _pools_list->length(); i++) { 497 MemoryPool* pool = _pools_list->at(i); 498 pool->record_peak_memory_usage(); 499 } 500 } 501 } 502 503 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage, 504 bool recordAccumulatedGCTime, 505 bool recordGCEndTime, bool countCollection, 506 GCCause::Cause cause) { 507 508 GCMemoryManager* mgr; 509 if (fullGC) { 510 mgr = (GCMemoryManager*) _major_gc_manager; 511 } else { 512 mgr = (GCMemoryManager*) _minor_gc_manager; 513 } 514 assert(mgr->is_gc_memory_manager(), "Sanity check"); 515 516 // register the GC end statistics and memory usage 517 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, 518 countCollection, cause); 519 } 520 521 void MemoryService::oops_do(OopClosure* f) { 522 int i; 523 524 for (i = 0; i < _pools_list->length(); i++) { 525 MemoryPool* pool = _pools_list->at(i); 526 pool->oops_do(f); 527 } 528 for (i = 0; i < _managers_list->length(); i++) { 529 MemoryManager* mgr = _managers_list->at(i); 530 mgr->oops_do(f); 531 } 532 } 533 534 bool MemoryService::set_verbose(bool verbose) { 535 MutexLocker m(Management_lock); 536 // verbose will be set to the previous value 537 if (verbose) { 538 LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(gc)); 539 } else { 540 LogConfiguration::configure_stdout(LogLevel::Off, true, LOG_TAGS(gc)); 541 } 542 ClassLoadingService::reset_trace_class_unloading(); 543 544 return verbose; 545 } 546 547 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { 548 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); 549 instanceKlassHandle ik(THREAD, k); 550 551 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH); 552 553 JavaValue result(T_VOID); 554 JavaCallArguments args(10); 555 args.push_oop(obj); // receiver 556 args.push_long(usage.init_size_as_jlong()); // Argument 1 557 args.push_long(usage.used_as_jlong()); // Argument 2 558 args.push_long(usage.committed_as_jlong()); // Argument 3 559 args.push_long(usage.max_size_as_jlong()); // Argument 4 560 561 JavaCalls::call_special(&result, 562 ik, 563 vmSymbols::object_initializer_name(), 564 vmSymbols::long_long_long_long_void_signature(), 565 &args, 566 CHECK_NH); 567 return obj; 568 } 569 570 // GC manager type depends on the type of Generation. Depending on the space 571 // availability and vm options the gc uses major gc manager or minor gc 572 // manager or both. The type of gc manager depends on the generation kind. 573 // For DefNew and ParNew generation doing scavenge gc uses minor gc manager (so 574 // _fullGC is set to false ) and for other generation kinds doing 575 // mark-sweep-compact uses major gc manager (so _fullGC is set to true). 576 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) { 577 switch (kind) { 578 case Generation::DefNew: 579 #if INCLUDE_ALL_GCS 580 case Generation::ParNew: 581 #endif // INCLUDE_ALL_GCS 582 _fullGC = false; 583 break; 584 case Generation::MarkSweepCompact: 585 #if INCLUDE_ALL_GCS 586 case Generation::ConcurrentMarkSweep: 587 #endif // INCLUDE_ALL_GCS 588 _fullGC = true; 589 break; 590 default: 591 _fullGC = false; 592 assert(false, "Unrecognized gc generation kind."); 593 } 594 // this has to be called in a stop the world pause and represent 595 // an entire gc pause, start to finish: 596 initialize(_fullGC, cause, true, true, true, true, true, true, true); 597 } 598 599 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC, 600 GCCause::Cause cause, 601 bool recordGCBeginTime, 602 bool recordPreGCUsage, 603 bool recordPeakUsage, 604 bool recordPostGCUsage, 605 bool recordAccumulatedGCTime, 606 bool recordGCEndTime, 607 bool countCollection) { 608 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, 609 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, 610 countCollection); 611 } 612 613 // for a subclass to create then initialize an instance before invoking 614 // the MemoryService 615 void TraceMemoryManagerStats::initialize(bool fullGC, 616 GCCause::Cause cause, 617 bool recordGCBeginTime, 618 bool recordPreGCUsage, 619 bool recordPeakUsage, 620 bool recordPostGCUsage, 621 bool recordAccumulatedGCTime, 622 bool recordGCEndTime, 623 bool countCollection) { 624 _fullGC = fullGC; 625 _recordGCBeginTime = recordGCBeginTime; 626 _recordPreGCUsage = recordPreGCUsage; 627 _recordPeakUsage = recordPeakUsage; 628 _recordPostGCUsage = recordPostGCUsage; 629 _recordAccumulatedGCTime = recordAccumulatedGCTime; 630 _recordGCEndTime = recordGCEndTime; 631 _countCollection = countCollection; 632 _cause = cause; 633 634 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime, 635 _recordPreGCUsage, _recordPeakUsage); 636 } 637 638 TraceMemoryManagerStats::~TraceMemoryManagerStats() { 639 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime, 640 _recordGCEndTime, _countCollection, _cause); 641 }