src/share/vm/services/memoryService.cpp

Tue, 08 Aug 2017 15:57:29 +0800

author
aoqi
date
Tue, 08 Aug 2017 15:57:29 +0800
changeset 6876
710a3c8b516e
parent 6198
55fb97c4c58d
parent 0
f90c822e73f8
child 9637
eef07cd490d4
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@0 25 #include "precompiled.hpp"
aoqi@0 26 #include "classfile/systemDictionary.hpp"
aoqi@0 27 #include "classfile/vmSymbols.hpp"
aoqi@0 28 #include "gc_implementation/shared/mutableSpace.hpp"
aoqi@0 29 #include "memory/collectorPolicy.hpp"
aoqi@0 30 #include "memory/defNewGeneration.hpp"
aoqi@0 31 #include "memory/genCollectedHeap.hpp"
aoqi@0 32 #include "memory/generation.hpp"
aoqi@0 33 #include "memory/generationSpec.hpp"
aoqi@0 34 #include "memory/heap.hpp"
aoqi@0 35 #include "memory/memRegion.hpp"
aoqi@0 36 #include "memory/tenuredGeneration.hpp"
aoqi@0 37 #include "oops/oop.inline.hpp"
aoqi@0 38 #include "runtime/globals.hpp"
aoqi@0 39 #include "runtime/javaCalls.hpp"
aoqi@0 40 #include "services/classLoadingService.hpp"
aoqi@0 41 #include "services/lowMemoryDetector.hpp"
aoqi@0 42 #include "services/management.hpp"
aoqi@0 43 #include "services/memoryManager.hpp"
aoqi@0 44 #include "services/memoryPool.hpp"
aoqi@0 45 #include "services/memoryService.hpp"
aoqi@0 46 #include "utilities/growableArray.hpp"
aoqi@0 47 #include "utilities/macros.hpp"
aoqi@0 48 #if INCLUDE_ALL_GCS
aoqi@0 49 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
aoqi@0 50 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
aoqi@0 51 #include "gc_implementation/parNew/parNewGeneration.hpp"
aoqi@0 52 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
aoqi@0 53 #include "gc_implementation/parallelScavenge/psOldGen.hpp"
aoqi@0 54 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
aoqi@0 55 #include "services/g1MemoryPool.hpp"
aoqi@0 56 #include "services/psMemoryPool.hpp"
aoqi@0 57 #endif // INCLUDE_ALL_GCS
aoqi@0 58
aoqi@0 59 GrowableArray<MemoryPool*>* MemoryService::_pools_list =
aoqi@0 60 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
aoqi@0 61 GrowableArray<MemoryManager*>* MemoryService::_managers_list =
aoqi@0 62 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
aoqi@0 63
aoqi@0 64 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;
aoqi@0 65 GCMemoryManager* MemoryService::_major_gc_manager = NULL;
aoqi@0 66 MemoryPool* MemoryService::_code_heap_pool = NULL;
aoqi@0 67 MemoryPool* MemoryService::_metaspace_pool = NULL;
aoqi@0 68 MemoryPool* MemoryService::_compressed_class_pool = NULL;
aoqi@0 69
aoqi@0 70 class GcThreadCountClosure: public ThreadClosure {
aoqi@0 71 private:
aoqi@0 72 int _count;
aoqi@0 73 public:
aoqi@0 74 GcThreadCountClosure() : _count(0) {};
aoqi@0 75 void do_thread(Thread* thread);
aoqi@0 76 int count() { return _count; }
aoqi@0 77 };
aoqi@0 78
aoqi@0 79 void GcThreadCountClosure::do_thread(Thread* thread) {
aoqi@0 80 _count++;
aoqi@0 81 }
aoqi@0 82
aoqi@0 83 void MemoryService::set_universe_heap(CollectedHeap* heap) {
aoqi@0 84 CollectedHeap::Name kind = heap->kind();
aoqi@0 85 switch (kind) {
aoqi@0 86 case CollectedHeap::GenCollectedHeap : {
aoqi@0 87 add_gen_collected_heap_info(GenCollectedHeap::heap());
aoqi@0 88 break;
aoqi@0 89 }
aoqi@0 90 #if INCLUDE_ALL_GCS
aoqi@0 91 case CollectedHeap::ParallelScavengeHeap : {
aoqi@0 92 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());
aoqi@0 93 break;
aoqi@0 94 }
aoqi@0 95 case CollectedHeap::G1CollectedHeap : {
aoqi@0 96 add_g1_heap_info(G1CollectedHeap::heap());
aoqi@0 97 break;
aoqi@0 98 }
aoqi@0 99 #endif // INCLUDE_ALL_GCS
aoqi@0 100 default: {
aoqi@0 101 guarantee(false, "Unrecognized kind of heap");
aoqi@0 102 }
aoqi@0 103 }
aoqi@0 104
aoqi@0 105 // set the GC thread count
aoqi@0 106 GcThreadCountClosure gctcc;
aoqi@0 107 heap->gc_threads_do(&gctcc);
aoqi@0 108 int count = gctcc.count();
aoqi@0 109 if (count > 0) {
aoqi@0 110 _minor_gc_manager->set_num_gc_threads(count);
aoqi@0 111 _major_gc_manager->set_num_gc_threads(count);
aoqi@0 112 }
aoqi@0 113
aoqi@0 114 // All memory pools and memory managers are initialized.
aoqi@0 115 //
aoqi@0 116 _minor_gc_manager->initialize_gc_stat_info();
aoqi@0 117 _major_gc_manager->initialize_gc_stat_info();
aoqi@0 118 }
aoqi@0 119
aoqi@0 120 // Add memory pools for GenCollectedHeap
aoqi@0 121 // This function currently only supports two generations collected heap.
aoqi@0 122 // The collector for GenCollectedHeap will have two memory managers.
aoqi@0 123 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {
aoqi@0 124 CollectorPolicy* policy = heap->collector_policy();
aoqi@0 125
aoqi@0 126 assert(policy->is_two_generation_policy(), "Only support two generations");
aoqi@0 127 guarantee(heap->n_gens() == 2, "Only support two-generation heap");
aoqi@0 128
aoqi@0 129 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy();
aoqi@0 130 if (two_gen_policy != NULL) {
aoqi@0 131 GenerationSpec** specs = two_gen_policy->generations();
aoqi@0 132 Generation::Name kind = specs[0]->name();
aoqi@0 133 switch (kind) {
aoqi@0 134 case Generation::DefNew:
aoqi@0 135 _minor_gc_manager = MemoryManager::get_copy_memory_manager();
aoqi@0 136 break;
aoqi@0 137 #if INCLUDE_ALL_GCS
aoqi@0 138 case Generation::ParNew:
aoqi@0 139 case Generation::ASParNew:
aoqi@0 140 _minor_gc_manager = MemoryManager::get_parnew_memory_manager();
aoqi@0 141 break;
aoqi@0 142 #endif // INCLUDE_ALL_GCS
aoqi@0 143 default:
aoqi@0 144 guarantee(false, "Unrecognized generation spec");
aoqi@0 145 break;
aoqi@0 146 }
aoqi@0 147 if (policy->is_mark_sweep_policy()) {
aoqi@0 148 _major_gc_manager = MemoryManager::get_msc_memory_manager();
aoqi@0 149 #if INCLUDE_ALL_GCS
aoqi@0 150 } else if (policy->is_concurrent_mark_sweep_policy()) {
aoqi@0 151 _major_gc_manager = MemoryManager::get_cms_memory_manager();
aoqi@0 152 #endif // INCLUDE_ALL_GCS
aoqi@0 153 } else {
aoqi@0 154 guarantee(false, "Unknown two-gen policy");
aoqi@0 155 }
aoqi@0 156 } else {
aoqi@0 157 guarantee(false, "Non two-gen policy");
aoqi@0 158 }
aoqi@0 159 _managers_list->append(_minor_gc_manager);
aoqi@0 160 _managers_list->append(_major_gc_manager);
aoqi@0 161
aoqi@0 162 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager);
aoqi@0 163 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager);
aoqi@0 164 }
aoqi@0 165
aoqi@0 166 #if INCLUDE_ALL_GCS
aoqi@0 167 // Add memory pools for ParallelScavengeHeap
aoqi@0 168 // This function currently only supports two generations collected heap.
aoqi@0 169 // The collector for ParallelScavengeHeap will have two memory managers.
aoqi@0 170 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {
aoqi@0 171 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.
aoqi@0 172 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();
aoqi@0 173 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();
aoqi@0 174 _managers_list->append(_minor_gc_manager);
aoqi@0 175 _managers_list->append(_major_gc_manager);
aoqi@0 176
aoqi@0 177 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);
aoqi@0 178 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);
aoqi@0 179 }
aoqi@0 180
aoqi@0 181 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {
aoqi@0 182 assert(UseG1GC, "sanity");
aoqi@0 183
aoqi@0 184 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();
aoqi@0 185 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();
aoqi@0 186 _managers_list->append(_minor_gc_manager);
aoqi@0 187 _managers_list->append(_major_gc_manager);
aoqi@0 188
aoqi@0 189 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
aoqi@0 190 add_g1OldGen_memory_pool(g1h, _major_gc_manager);
aoqi@0 191 }
aoqi@0 192 #endif // INCLUDE_ALL_GCS
aoqi@0 193
aoqi@0 194 MemoryPool* MemoryService::add_gen(Generation* gen,
aoqi@0 195 const char* name,
aoqi@0 196 bool is_heap,
aoqi@0 197 bool support_usage_threshold) {
aoqi@0 198
aoqi@0 199 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
aoqi@0 200 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);
aoqi@0 201 _pools_list->append(pool);
aoqi@0 202 return (MemoryPool*) pool;
aoqi@0 203 }
aoqi@0 204
aoqi@0 205 MemoryPool* MemoryService::add_space(ContiguousSpace* space,
aoqi@0 206 const char* name,
aoqi@0 207 bool is_heap,
aoqi@0 208 size_t max_size,
aoqi@0 209 bool support_usage_threshold) {
aoqi@0 210 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
aoqi@0 211 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);
aoqi@0 212
aoqi@0 213 _pools_list->append(pool);
aoqi@0 214 return (MemoryPool*) pool;
aoqi@0 215 }
aoqi@0 216
aoqi@0 217 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen,
aoqi@0 218 const char* name,
aoqi@0 219 bool is_heap,
aoqi@0 220 size_t max_size,
aoqi@0 221 bool support_usage_threshold) {
aoqi@0 222 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
aoqi@0 223 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold);
aoqi@0 224
aoqi@0 225 _pools_list->append(pool);
aoqi@0 226 return (MemoryPool*) pool;
aoqi@0 227 }
aoqi@0 228
aoqi@0 229 #if INCLUDE_ALL_GCS
aoqi@0 230 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,
aoqi@0 231 const char* name,
aoqi@0 232 bool is_heap,
aoqi@0 233 size_t max_size,
aoqi@0 234 bool support_usage_threshold) {
aoqi@0 235 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
aoqi@0 236 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);
aoqi@0 237 _pools_list->append(pool);
aoqi@0 238 return (MemoryPool*) pool;
aoqi@0 239 }
aoqi@0 240 #endif // INCLUDE_ALL_GCS
aoqi@0 241
aoqi@0 242 // Add memory pool(s) for one generation
aoqi@0 243 void MemoryService::add_generation_memory_pool(Generation* gen,
aoqi@0 244 MemoryManager* major_mgr,
aoqi@0 245 MemoryManager* minor_mgr) {
aoqi@0 246 guarantee(gen != NULL, "No generation for memory pool");
aoqi@0 247 Generation::Name kind = gen->kind();
aoqi@0 248 int index = _pools_list->length();
aoqi@0 249
aoqi@0 250 switch (kind) {
aoqi@0 251 case Generation::DefNew: {
aoqi@0 252 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
aoqi@0 253 DefNewGeneration* young_gen = (DefNewGeneration*) gen;
aoqi@0 254 // Add a memory pool for each space and young gen doesn't
aoqi@0 255 // support low memory detection as it is expected to get filled up.
aoqi@0 256 MemoryPool* eden = add_space(young_gen->eden(),
aoqi@0 257 "Eden Space",
aoqi@0 258 true, /* is_heap */
aoqi@0 259 young_gen->max_eden_size(),
aoqi@0 260 false /* support_usage_threshold */);
aoqi@0 261 MemoryPool* survivor = add_survivor_spaces(young_gen,
aoqi@0 262 "Survivor Space",
aoqi@0 263 true, /* is_heap */
aoqi@0 264 young_gen->max_survivor_size(),
aoqi@0 265 false /* support_usage_threshold */);
aoqi@0 266 break;
aoqi@0 267 }
aoqi@0 268
aoqi@0 269 #if INCLUDE_ALL_GCS
aoqi@0 270 case Generation::ParNew:
aoqi@0 271 case Generation::ASParNew:
aoqi@0 272 {
aoqi@0 273 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
aoqi@0 274 // Add a memory pool for each space and young gen doesn't
aoqi@0 275 // support low memory detection as it is expected to get filled up.
aoqi@0 276 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;
aoqi@0 277 MemoryPool* eden = add_space(parnew_gen->eden(),
aoqi@0 278 "Par Eden Space",
aoqi@0 279 true /* is_heap */,
aoqi@0 280 parnew_gen->max_eden_size(),
aoqi@0 281 false /* support_usage_threshold */);
aoqi@0 282 MemoryPool* survivor = add_survivor_spaces(parnew_gen,
aoqi@0 283 "Par Survivor Space",
aoqi@0 284 true, /* is_heap */
aoqi@0 285 parnew_gen->max_survivor_size(),
aoqi@0 286 false /* support_usage_threshold */);
aoqi@0 287
aoqi@0 288 break;
aoqi@0 289 }
aoqi@0 290 #endif // INCLUDE_ALL_GCS
aoqi@0 291
aoqi@0 292 case Generation::MarkSweepCompact: {
aoqi@0 293 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
aoqi@0 294 add_gen(gen,
aoqi@0 295 "Tenured Gen",
aoqi@0 296 true, /* is_heap */
aoqi@0 297 true /* support_usage_threshold */);
aoqi@0 298 break;
aoqi@0 299 }
aoqi@0 300
aoqi@0 301 #if INCLUDE_ALL_GCS
aoqi@0 302 case Generation::ConcurrentMarkSweep:
aoqi@0 303 case Generation::ASConcurrentMarkSweep:
aoqi@0 304 {
aoqi@0 305 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
aoqi@0 306 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen;
aoqi@0 307 MemoryPool* pool = add_cms_space(cms->cmsSpace(),
aoqi@0 308 "CMS Old Gen",
aoqi@0 309 true, /* is_heap */
aoqi@0 310 cms->reserved().byte_size(),
aoqi@0 311 true /* support_usage_threshold */);
aoqi@0 312 break;
aoqi@0 313 }
aoqi@0 314 #endif // INCLUDE_ALL_GCS
aoqi@0 315
aoqi@0 316 default:
aoqi@0 317 assert(false, "should not reach here");
aoqi@0 318 // no memory pool added for others
aoqi@0 319 break;
aoqi@0 320 }
aoqi@0 321
aoqi@0 322 assert(major_mgr != NULL, "Should have at least one manager");
aoqi@0 323 // Link managers and the memory pools together
aoqi@0 324 for (int i = index; i < _pools_list->length(); i++) {
aoqi@0 325 MemoryPool* pool = _pools_list->at(i);
aoqi@0 326 major_mgr->add_pool(pool);
aoqi@0 327 if (minor_mgr != NULL) {
aoqi@0 328 minor_mgr->add_pool(pool);
aoqi@0 329 }
aoqi@0 330 }
aoqi@0 331 }
aoqi@0 332
aoqi@0 333
aoqi@0 334 #if INCLUDE_ALL_GCS
aoqi@0 335 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) {
aoqi@0 336 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
aoqi@0 337
aoqi@0 338 // Add a memory pool for each space and young gen doesn't
aoqi@0 339 // support low memory detection as it is expected to get filled up.
aoqi@0 340 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen,
aoqi@0 341 gen->eden_space(),
aoqi@0 342 "PS Eden Space",
aoqi@0 343 MemoryPool::Heap,
aoqi@0 344 false /* support_usage_threshold */);
aoqi@0 345
aoqi@0 346 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen,
aoqi@0 347 "PS Survivor Space",
aoqi@0 348 MemoryPool::Heap,
aoqi@0 349 false /* support_usage_threshold */);
aoqi@0 350
aoqi@0 351 major_mgr->add_pool(eden);
aoqi@0 352 major_mgr->add_pool(survivor);
aoqi@0 353 minor_mgr->add_pool(eden);
aoqi@0 354 minor_mgr->add_pool(survivor);
aoqi@0 355 _pools_list->append(eden);
aoqi@0 356 _pools_list->append(survivor);
aoqi@0 357 }
aoqi@0 358
aoqi@0 359 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) {
aoqi@0 360 PSGenerationPool* old_gen = new PSGenerationPool(gen,
aoqi@0 361 "PS Old Gen",
aoqi@0 362 MemoryPool::Heap,
aoqi@0 363 true /* support_usage_threshold */);
aoqi@0 364 mgr->add_pool(old_gen);
aoqi@0 365 _pools_list->append(old_gen);
aoqi@0 366 }
aoqi@0 367
aoqi@0 368 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
aoqi@0 369 MemoryManager* major_mgr,
aoqi@0 370 MemoryManager* minor_mgr) {
aoqi@0 371 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
aoqi@0 372
aoqi@0 373 G1EdenPool* eden = new G1EdenPool(g1h);
aoqi@0 374 G1SurvivorPool* survivor = new G1SurvivorPool(g1h);
aoqi@0 375
aoqi@0 376 major_mgr->add_pool(eden);
aoqi@0 377 major_mgr->add_pool(survivor);
aoqi@0 378 minor_mgr->add_pool(eden);
aoqi@0 379 minor_mgr->add_pool(survivor);
aoqi@0 380 _pools_list->append(eden);
aoqi@0 381 _pools_list->append(survivor);
aoqi@0 382 }
aoqi@0 383
aoqi@0 384 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
aoqi@0 385 MemoryManager* mgr) {
aoqi@0 386 assert(mgr != NULL, "should have one manager");
aoqi@0 387
aoqi@0 388 G1OldGenPool* old_gen = new G1OldGenPool(g1h);
aoqi@0 389 mgr->add_pool(old_gen);
aoqi@0 390 _pools_list->append(old_gen);
aoqi@0 391 }
aoqi@0 392 #endif // INCLUDE_ALL_GCS
aoqi@0 393
aoqi@0 394 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) {
aoqi@0 395 _code_heap_pool = new CodeHeapPool(heap,
aoqi@0 396 "Code Cache",
aoqi@0 397 true /* support_usage_threshold */);
aoqi@0 398 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager();
aoqi@0 399 mgr->add_pool(_code_heap_pool);
aoqi@0 400
aoqi@0 401 _pools_list->append(_code_heap_pool);
aoqi@0 402 _managers_list->append(mgr);
aoqi@0 403 }
aoqi@0 404
aoqi@0 405 void MemoryService::add_metaspace_memory_pools() {
aoqi@0 406 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager();
aoqi@0 407
aoqi@0 408 _metaspace_pool = new MetaspacePool();
aoqi@0 409 mgr->add_pool(_metaspace_pool);
aoqi@0 410 _pools_list->append(_metaspace_pool);
aoqi@0 411
aoqi@0 412 if (UseCompressedClassPointers) {
aoqi@0 413 _compressed_class_pool = new CompressedKlassSpacePool();
aoqi@0 414 mgr->add_pool(_compressed_class_pool);
aoqi@0 415 _pools_list->append(_compressed_class_pool);
aoqi@0 416 }
aoqi@0 417
aoqi@0 418 _managers_list->append(mgr);
aoqi@0 419 }
aoqi@0 420
aoqi@0 421 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) {
aoqi@0 422 for (int i = 0; i < _managers_list->length(); i++) {
aoqi@0 423 MemoryManager* mgr = _managers_list->at(i);
aoqi@0 424 if (mgr->is_manager(mh)) {
aoqi@0 425 return mgr;
aoqi@0 426 }
aoqi@0 427 }
aoqi@0 428 return NULL;
aoqi@0 429 }
aoqi@0 430
aoqi@0 431 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) {
aoqi@0 432 for (int i = 0; i < _pools_list->length(); i++) {
aoqi@0 433 MemoryPool* pool = _pools_list->at(i);
aoqi@0 434 if (pool->is_pool(ph)) {
aoqi@0 435 return pool;
aoqi@0 436 }
aoqi@0 437 }
aoqi@0 438 return NULL;
aoqi@0 439 }
aoqi@0 440
aoqi@0 441 void MemoryService::track_memory_usage() {
aoqi@0 442 // Track the peak memory usage
aoqi@0 443 for (int i = 0; i < _pools_list->length(); i++) {
aoqi@0 444 MemoryPool* pool = _pools_list->at(i);
aoqi@0 445 pool->record_peak_memory_usage();
aoqi@0 446 }
aoqi@0 447
aoqi@0 448 // Detect low memory
aoqi@0 449 LowMemoryDetector::detect_low_memory();
aoqi@0 450 }
aoqi@0 451
aoqi@0 452 void MemoryService::track_memory_pool_usage(MemoryPool* pool) {
aoqi@0 453 // Track the peak memory usage
aoqi@0 454 pool->record_peak_memory_usage();
aoqi@0 455
aoqi@0 456 // Detect low memory
aoqi@0 457 if (LowMemoryDetector::is_enabled(pool)) {
aoqi@0 458 LowMemoryDetector::detect_low_memory(pool);
aoqi@0 459 }
aoqi@0 460 }
aoqi@0 461
aoqi@0 462 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime,
aoqi@0 463 bool recordAccumulatedGCTime,
aoqi@0 464 bool recordPreGCUsage, bool recordPeakUsage) {
aoqi@0 465
aoqi@0 466 GCMemoryManager* mgr;
aoqi@0 467 if (fullGC) {
aoqi@0 468 mgr = _major_gc_manager;
aoqi@0 469 } else {
aoqi@0 470 mgr = _minor_gc_manager;
aoqi@0 471 }
aoqi@0 472 assert(mgr->is_gc_memory_manager(), "Sanity check");
aoqi@0 473 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime);
aoqi@0 474
aoqi@0 475 // Track the peak memory usage when GC begins
aoqi@0 476 if (recordPeakUsage) {
aoqi@0 477 for (int i = 0; i < _pools_list->length(); i++) {
aoqi@0 478 MemoryPool* pool = _pools_list->at(i);
aoqi@0 479 pool->record_peak_memory_usage();
aoqi@0 480 }
aoqi@0 481 }
aoqi@0 482 }
aoqi@0 483
aoqi@0 484 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage,
aoqi@0 485 bool recordAccumulatedGCTime,
aoqi@0 486 bool recordGCEndTime, bool countCollection,
aoqi@0 487 GCCause::Cause cause) {
aoqi@0 488
aoqi@0 489 GCMemoryManager* mgr;
aoqi@0 490 if (fullGC) {
aoqi@0 491 mgr = (GCMemoryManager*) _major_gc_manager;
aoqi@0 492 } else {
aoqi@0 493 mgr = (GCMemoryManager*) _minor_gc_manager;
aoqi@0 494 }
aoqi@0 495 assert(mgr->is_gc_memory_manager(), "Sanity check");
aoqi@0 496
aoqi@0 497 // register the GC end statistics and memory usage
aoqi@0 498 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
aoqi@0 499 countCollection, cause);
aoqi@0 500 }
aoqi@0 501
aoqi@0 502 void MemoryService::oops_do(OopClosure* f) {
aoqi@0 503 int i;
aoqi@0 504
aoqi@0 505 for (i = 0; i < _pools_list->length(); i++) {
aoqi@0 506 MemoryPool* pool = _pools_list->at(i);
aoqi@0 507 pool->oops_do(f);
aoqi@0 508 }
aoqi@0 509 for (i = 0; i < _managers_list->length(); i++) {
aoqi@0 510 MemoryManager* mgr = _managers_list->at(i);
aoqi@0 511 mgr->oops_do(f);
aoqi@0 512 }
aoqi@0 513 }
aoqi@0 514
aoqi@0 515 bool MemoryService::set_verbose(bool verbose) {
aoqi@0 516 MutexLocker m(Management_lock);
aoqi@0 517 // verbose will be set to the previous value
aoqi@0 518 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, Flag::MANAGEMENT);
aoqi@0 519 assert(succeed, "Setting PrintGC flag fails");
aoqi@0 520 ClassLoadingService::reset_trace_class_unloading();
aoqi@0 521
aoqi@0 522 return verbose;
aoqi@0 523 }
aoqi@0 524
aoqi@0 525 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) {
aoqi@0 526 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH);
aoqi@0 527 instanceKlassHandle ik(THREAD, k);
aoqi@0 528
aoqi@0 529 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH);
aoqi@0 530
aoqi@0 531 JavaValue result(T_VOID);
aoqi@0 532 JavaCallArguments args(10);
aoqi@0 533 args.push_oop(obj); // receiver
aoqi@0 534 args.push_long(usage.init_size_as_jlong()); // Argument 1
aoqi@0 535 args.push_long(usage.used_as_jlong()); // Argument 2
aoqi@0 536 args.push_long(usage.committed_as_jlong()); // Argument 3
aoqi@0 537 args.push_long(usage.max_size_as_jlong()); // Argument 4
aoqi@0 538
aoqi@0 539 JavaCalls::call_special(&result,
aoqi@0 540 ik,
aoqi@0 541 vmSymbols::object_initializer_name(),
aoqi@0 542 vmSymbols::long_long_long_long_void_signature(),
aoqi@0 543 &args,
aoqi@0 544 CHECK_NH);
aoqi@0 545 return obj;
aoqi@0 546 }
aoqi@0 547 //
aoqi@0 548 // GC manager type depends on the type of Generation. Depending on the space
aoqi@0 549 // availablity and vm options the gc uses major gc manager or minor gc
aoqi@0 550 // manager or both. The type of gc manager depends on the generation kind.
aoqi@0 551 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor
aoqi@0 552 // gc manager (so _fullGC is set to false ) and for other generation kinds
aoqi@0 553 // doing mark-sweep-compact uses major gc manager (so _fullGC is set
aoqi@0 554 // to true).
aoqi@0 555 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) {
aoqi@0 556 switch (kind) {
aoqi@0 557 case Generation::DefNew:
aoqi@0 558 #if INCLUDE_ALL_GCS
aoqi@0 559 case Generation::ParNew:
aoqi@0 560 case Generation::ASParNew:
aoqi@0 561 #endif // INCLUDE_ALL_GCS
aoqi@0 562 _fullGC=false;
aoqi@0 563 break;
aoqi@0 564 case Generation::MarkSweepCompact:
aoqi@0 565 #if INCLUDE_ALL_GCS
aoqi@0 566 case Generation::ConcurrentMarkSweep:
aoqi@0 567 case Generation::ASConcurrentMarkSweep:
aoqi@0 568 #endif // INCLUDE_ALL_GCS
aoqi@0 569 _fullGC=true;
aoqi@0 570 break;
aoqi@0 571 default:
aoqi@0 572 assert(false, "Unrecognized gc generation kind.");
aoqi@0 573 }
aoqi@0 574 // this has to be called in a stop the world pause and represent
aoqi@0 575 // an entire gc pause, start to finish:
aoqi@0 576 initialize(_fullGC, cause,true, true, true, true, true, true, true);
aoqi@0 577 }
aoqi@0 578 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC,
aoqi@0 579 GCCause::Cause cause,
aoqi@0 580 bool recordGCBeginTime,
aoqi@0 581 bool recordPreGCUsage,
aoqi@0 582 bool recordPeakUsage,
aoqi@0 583 bool recordPostGCUsage,
aoqi@0 584 bool recordAccumulatedGCTime,
aoqi@0 585 bool recordGCEndTime,
aoqi@0 586 bool countCollection) {
aoqi@0 587 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage,
aoqi@0 588 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
aoqi@0 589 countCollection);
aoqi@0 590 }
aoqi@0 591
aoqi@0 592 // for a subclass to create then initialize an instance before invoking
aoqi@0 593 // the MemoryService
aoqi@0 594 void TraceMemoryManagerStats::initialize(bool fullGC,
aoqi@0 595 GCCause::Cause cause,
aoqi@0 596 bool recordGCBeginTime,
aoqi@0 597 bool recordPreGCUsage,
aoqi@0 598 bool recordPeakUsage,
aoqi@0 599 bool recordPostGCUsage,
aoqi@0 600 bool recordAccumulatedGCTime,
aoqi@0 601 bool recordGCEndTime,
aoqi@0 602 bool countCollection) {
aoqi@0 603 _fullGC = fullGC;
aoqi@0 604 _recordGCBeginTime = recordGCBeginTime;
aoqi@0 605 _recordPreGCUsage = recordPreGCUsage;
aoqi@0 606 _recordPeakUsage = recordPeakUsage;
aoqi@0 607 _recordPostGCUsage = recordPostGCUsage;
aoqi@0 608 _recordAccumulatedGCTime = recordAccumulatedGCTime;
aoqi@0 609 _recordGCEndTime = recordGCEndTime;
aoqi@0 610 _countCollection = countCollection;
aoqi@0 611 _cause = cause;
aoqi@0 612
aoqi@0 613 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime,
aoqi@0 614 _recordPreGCUsage, _recordPeakUsage);
aoqi@0 615 }
aoqi@0 616
aoqi@0 617 TraceMemoryManagerStats::~TraceMemoryManagerStats() {
aoqi@0 618 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime,
aoqi@0 619 _recordGCEndTime, _countCollection, _cause);
aoqi@0 620 }

mercurial