Mercurial > hg > truffle
annotate src/share/vm/services/memoryService.cpp @ 8826:338b3a9e29b5
Merge
| author | stefank |
|---|---|
| date | Mon, 25 Mar 2013 11:00:19 +0100 |
| parents | 8b4ce9870fd6 dbd5837b342f |
| children | 42e370795a39 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 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/javaCalls.hpp" | |
| 39 #include "services/classLoadingService.hpp" | |
| 40 #include "services/lowMemoryDetector.hpp" | |
| 41 #include "services/management.hpp" | |
| 42 #include "services/memoryManager.hpp" | |
| 43 #include "services/memoryPool.hpp" | |
| 44 #include "services/memoryService.hpp" | |
| 45 #include "utilities/growableArray.hpp" | |
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46 #include "utilities/macros.hpp" |
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47 #if INCLUDE_ALL_GCS |
| 1972 | 48 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp" |
| 49 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
| 50 #include "gc_implementation/parNew/parNewGeneration.hpp" | |
| 51 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" | |
| 52 #include "gc_implementation/parallelScavenge/psOldGen.hpp" | |
| 53 #include "gc_implementation/parallelScavenge/psYoungGen.hpp" | |
| 54 #include "services/g1MemoryPool.hpp" | |
| 55 #include "services/psMemoryPool.hpp" | |
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56 #endif // INCLUDE_ALL_GCS |
| 0 | 57 |
| 58 GrowableArray<MemoryPool*>* MemoryService::_pools_list = | |
| 6197 | 59 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true); |
| 0 | 60 GrowableArray<MemoryManager*>* MemoryService::_managers_list = |
| 6197 | 61 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true); |
| 0 | 62 |
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63 GCMemoryManager* MemoryService::_minor_gc_manager = NULL; |
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64 GCMemoryManager* MemoryService::_major_gc_manager = NULL; |
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65 MemoryPool* MemoryService::_code_heap_pool = NULL; |
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66 MemoryPool* MemoryService::_metaspace_pool = NULL; |
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67 MemoryPool* MemoryService::_class_metaspace_pool = NULL; |
| 0 | 68 |
| 69 class GcThreadCountClosure: public ThreadClosure { | |
| 70 private: | |
| 71 int _count; | |
| 72 public: | |
| 73 GcThreadCountClosure() : _count(0) {}; | |
| 74 void do_thread(Thread* thread); | |
| 75 int count() { return _count; } | |
| 76 }; | |
| 77 | |
| 78 void GcThreadCountClosure::do_thread(Thread* thread) { | |
| 79 _count++; | |
| 80 } | |
| 81 | |
| 82 void MemoryService::set_universe_heap(CollectedHeap* heap) { | |
| 83 CollectedHeap::Name kind = heap->kind(); | |
| 84 switch (kind) { | |
| 85 case CollectedHeap::GenCollectedHeap : { | |
| 86 add_gen_collected_heap_info(GenCollectedHeap::heap()); | |
| 87 break; | |
| 88 } | |
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89 #if INCLUDE_ALL_GCS |
| 0 | 90 case CollectedHeap::ParallelScavengeHeap : { |
| 91 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap()); | |
| 92 break; | |
| 93 } | |
| 342 | 94 case CollectedHeap::G1CollectedHeap : { |
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95 add_g1_heap_info(G1CollectedHeap::heap()); |
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96 break; |
| 342 | 97 } |
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98 #endif // INCLUDE_ALL_GCS |
| 0 | 99 default: { |
| 342 | 100 guarantee(false, "Unrecognized kind of heap"); |
| 0 | 101 } |
| 102 } | |
| 103 | |
| 104 // set the GC thread count | |
| 105 GcThreadCountClosure gctcc; | |
| 106 heap->gc_threads_do(&gctcc); | |
| 107 int count = gctcc.count(); | |
| 108 if (count > 0) { | |
| 109 _minor_gc_manager->set_num_gc_threads(count); | |
| 110 _major_gc_manager->set_num_gc_threads(count); | |
| 111 } | |
| 112 | |
| 113 // All memory pools and memory managers are initialized. | |
| 114 // | |
| 115 _minor_gc_manager->initialize_gc_stat_info(); | |
| 116 _major_gc_manager->initialize_gc_stat_info(); | |
| 117 } | |
| 118 | |
| 119 // Add memory pools for GenCollectedHeap | |
| 120 // This function currently only supports two generations collected heap. | |
| 121 // The collector for GenCollectedHeap will have two memory managers. | |
| 122 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) { | |
| 123 CollectorPolicy* policy = heap->collector_policy(); | |
| 124 | |
| 125 assert(policy->is_two_generation_policy(), "Only support two generations"); | |
| 126 guarantee(heap->n_gens() == 2, "Only support two-generation heap"); | |
| 127 | |
| 128 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy(); | |
| 129 if (two_gen_policy != NULL) { | |
| 130 GenerationSpec** specs = two_gen_policy->generations(); | |
| 131 Generation::Name kind = specs[0]->name(); | |
| 132 switch (kind) { | |
| 133 case Generation::DefNew: | |
| 134 _minor_gc_manager = MemoryManager::get_copy_memory_manager(); | |
| 135 break; | |
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136 #if INCLUDE_ALL_GCS |
| 0 | 137 case Generation::ParNew: |
| 138 case Generation::ASParNew: | |
| 139 _minor_gc_manager = MemoryManager::get_parnew_memory_manager(); | |
| 140 break; | |
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141 #endif // INCLUDE_ALL_GCS |
| 0 | 142 default: |
| 143 guarantee(false, "Unrecognized generation spec"); | |
| 144 break; | |
| 145 } | |
| 146 if (policy->is_mark_sweep_policy()) { | |
| 147 _major_gc_manager = MemoryManager::get_msc_memory_manager(); | |
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148 #if INCLUDE_ALL_GCS |
| 0 | 149 } else if (policy->is_concurrent_mark_sweep_policy()) { |
| 150 _major_gc_manager = MemoryManager::get_cms_memory_manager(); | |
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151 #endif // INCLUDE_ALL_GCS |
| 0 | 152 } else { |
| 153 guarantee(false, "Unknown two-gen policy"); | |
| 154 } | |
| 155 } else { | |
| 156 guarantee(false, "Non two-gen policy"); | |
| 157 } | |
| 158 _managers_list->append(_minor_gc_manager); | |
| 159 _managers_list->append(_major_gc_manager); | |
| 160 | |
| 161 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager); | |
| 162 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager); | |
| 163 } | |
| 164 | |
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165 #if INCLUDE_ALL_GCS |
| 0 | 166 // Add memory pools for ParallelScavengeHeap |
| 167 // This function currently only supports two generations collected heap. | |
| 168 // The collector for ParallelScavengeHeap will have two memory managers. | |
| 169 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) { | |
| 170 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC. | |
| 171 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager(); | |
| 172 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager(); | |
| 173 _managers_list->append(_minor_gc_manager); | |
| 174 _managers_list->append(_major_gc_manager); | |
| 175 | |
| 176 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); | |
| 177 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager); | |
| 178 } | |
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179 |
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180 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) { |
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181 assert(UseG1GC, "sanity"); |
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182 |
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183 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager(); |
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184 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager(); |
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185 _managers_list->append(_minor_gc_manager); |
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186 _managers_list->append(_major_gc_manager); |
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187 |
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188 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); |
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189 add_g1OldGen_memory_pool(g1h, _major_gc_manager); |
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190 } |
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191 #endif // INCLUDE_ALL_GCS |
| 0 | 192 |
| 193 MemoryPool* MemoryService::add_gen(Generation* gen, | |
| 194 const char* name, | |
| 195 bool is_heap, | |
| 196 bool support_usage_threshold) { | |
| 197 | |
| 198 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 199 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold); | |
| 200 _pools_list->append(pool); | |
| 201 return (MemoryPool*) pool; | |
| 202 } | |
| 203 | |
| 204 MemoryPool* MemoryService::add_space(ContiguousSpace* space, | |
| 205 const char* name, | |
| 206 bool is_heap, | |
| 207 size_t max_size, | |
| 208 bool support_usage_threshold) { | |
| 209 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 210 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 211 | |
| 212 _pools_list->append(pool); | |
| 213 return (MemoryPool*) pool; | |
| 214 } | |
| 215 | |
| 216 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen, | |
| 217 const char* name, | |
| 218 bool is_heap, | |
| 219 size_t max_size, | |
| 220 bool support_usage_threshold) { | |
| 221 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 222 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold); | |
| 223 | |
| 224 _pools_list->append(pool); | |
| 225 return (MemoryPool*) pool; | |
| 226 } | |
| 227 | |
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228 #if INCLUDE_ALL_GCS |
| 0 | 229 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* 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 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 236 _pools_list->append(pool); | |
| 237 return (MemoryPool*) pool; | |
| 238 } | |
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239 #endif // INCLUDE_ALL_GCS |
| 0 | 240 |
| 241 // Add memory pool(s) for one generation | |
| 242 void MemoryService::add_generation_memory_pool(Generation* gen, | |
| 243 MemoryManager* major_mgr, | |
| 244 MemoryManager* minor_mgr) { | |
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245 guarantee(gen != NULL, "No generation for memory pool"); |
| 0 | 246 Generation::Name kind = gen->kind(); |
| 247 int index = _pools_list->length(); | |
| 248 | |
| 249 switch (kind) { | |
| 250 case Generation::DefNew: { | |
| 251 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 252 DefNewGeneration* young_gen = (DefNewGeneration*) gen; | |
| 253 // Add a memory pool for each space and young gen doesn't | |
| 254 // support low memory detection as it is expected to get filled up. | |
| 255 MemoryPool* eden = add_space(young_gen->eden(), | |
| 256 "Eden Space", | |
| 257 true, /* is_heap */ | |
| 258 young_gen->max_eden_size(), | |
| 259 false /* support_usage_threshold */); | |
| 260 MemoryPool* survivor = add_survivor_spaces(young_gen, | |
| 261 "Survivor Space", | |
| 262 true, /* is_heap */ | |
| 263 young_gen->max_survivor_size(), | |
| 264 false /* support_usage_threshold */); | |
| 265 break; | |
| 266 } | |
| 267 | |
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268 #if INCLUDE_ALL_GCS |
| 0 | 269 case Generation::ParNew: |
| 270 case Generation::ASParNew: | |
| 271 { | |
| 272 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 273 // Add a memory pool for each space and young gen doesn't | |
| 274 // support low memory detection as it is expected to get filled up. | |
| 275 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen; | |
| 276 MemoryPool* eden = add_space(parnew_gen->eden(), | |
| 277 "Par Eden Space", | |
| 278 true /* is_heap */, | |
| 279 parnew_gen->max_eden_size(), | |
| 280 false /* support_usage_threshold */); | |
| 281 MemoryPool* survivor = add_survivor_spaces(parnew_gen, | |
| 282 "Par Survivor Space", | |
| 283 true, /* is_heap */ | |
| 284 parnew_gen->max_survivor_size(), | |
| 285 false /* support_usage_threshold */); | |
| 286 | |
| 287 break; | |
| 288 } | |
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289 #endif // INCLUDE_ALL_GCS |
| 0 | 290 |
| 291 case Generation::MarkSweepCompact: { | |
| 292 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 293 add_gen(gen, | |
| 294 "Tenured Gen", | |
| 295 true, /* is_heap */ | |
| 296 true /* support_usage_threshold */); | |
| 297 break; | |
| 298 } | |
| 299 | |
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300 #if INCLUDE_ALL_GCS |
| 0 | 301 case Generation::ConcurrentMarkSweep: |
| 302 case Generation::ASConcurrentMarkSweep: | |
| 303 { | |
| 304 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 305 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen; | |
| 306 MemoryPool* pool = add_cms_space(cms->cmsSpace(), | |
| 307 "CMS Old Gen", | |
| 308 true, /* is_heap */ | |
| 309 cms->reserved().byte_size(), | |
| 310 true /* support_usage_threshold */); | |
| 311 break; | |
| 312 } | |
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313 #endif // INCLUDE_ALL_GCS |
| 0 | 314 |
| 315 default: | |
| 316 assert(false, "should not reach here"); | |
| 317 // no memory pool added for others | |
| 318 break; | |
| 319 } | |
| 320 | |
| 321 assert(major_mgr != NULL, "Should have at least one manager"); | |
| 322 // Link managers and the memory pools together | |
| 323 for (int i = index; i < _pools_list->length(); i++) { | |
| 324 MemoryPool* pool = _pools_list->at(i); | |
| 325 major_mgr->add_pool(pool); | |
| 326 if (minor_mgr != NULL) { | |
| 327 minor_mgr->add_pool(pool); | |
| 328 } | |
| 329 } | |
| 330 } | |
| 331 | |
| 332 | |
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333 #if INCLUDE_ALL_GCS |
| 0 | 334 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) { |
| 335 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 336 | |
| 337 // Add a memory pool for each space and young gen doesn't | |
| 338 // support low memory detection as it is expected to get filled up. | |
| 339 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen, | |
| 340 gen->eden_space(), | |
| 341 "PS Eden Space", | |
| 342 MemoryPool::Heap, | |
| 343 false /* support_usage_threshold */); | |
| 344 | |
| 345 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen, | |
| 346 "PS Survivor Space", | |
| 347 MemoryPool::Heap, | |
| 348 false /* support_usage_threshold */); | |
| 349 | |
| 350 major_mgr->add_pool(eden); | |
| 351 major_mgr->add_pool(survivor); | |
| 352 minor_mgr->add_pool(eden); | |
| 353 minor_mgr->add_pool(survivor); | |
| 354 _pools_list->append(eden); | |
| 355 _pools_list->append(survivor); | |
| 356 } | |
| 357 | |
| 358 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) { | |
| 359 PSGenerationPool* old_gen = new PSGenerationPool(gen, | |
| 360 "PS Old Gen", | |
| 361 MemoryPool::Heap, | |
| 362 true /* support_usage_threshold */); | |
| 363 mgr->add_pool(old_gen); | |
| 364 _pools_list->append(old_gen); | |
| 365 } | |
| 366 | |
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367 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h, |
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368 MemoryManager* major_mgr, |
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369 MemoryManager* minor_mgr) { |
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370 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers"); |
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371 |
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372 G1EdenPool* eden = new G1EdenPool(g1h); |
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373 G1SurvivorPool* survivor = new G1SurvivorPool(g1h); |
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374 |
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375 major_mgr->add_pool(eden); |
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376 major_mgr->add_pool(survivor); |
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377 minor_mgr->add_pool(eden); |
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378 minor_mgr->add_pool(survivor); |
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379 _pools_list->append(eden); |
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380 _pools_list->append(survivor); |
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381 } |
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382 |
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383 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h, |
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384 MemoryManager* mgr) { |
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385 assert(mgr != NULL, "should have one manager"); |
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386 |
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387 G1OldGenPool* old_gen = new G1OldGenPool(g1h); |
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388 mgr->add_pool(old_gen); |
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389 _pools_list->append(old_gen); |
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390 } |
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391 #endif // INCLUDE_ALL_GCS |
| 0 | 392 |
| 393 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) { | |
| 394 _code_heap_pool = new CodeHeapPool(heap, | |
| 395 "Code Cache", | |
| 396 true /* support_usage_threshold */); | |
| 397 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager(); | |
| 398 mgr->add_pool(_code_heap_pool); | |
| 399 | |
| 400 _pools_list->append(_code_heap_pool); | |
| 401 _managers_list->append(mgr); | |
| 402 } | |
| 403 | |
|
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404 void MemoryService::add_metaspace_memory_pools() { |
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405 _metaspace_pool = new MetaspacePool(); |
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406 _class_metaspace_pool = new ClassMetaspacePool(); |
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407 |
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408 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager(); |
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409 mgr->add_pool(_metaspace_pool); |
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410 mgr->add_pool(_class_metaspace_pool); |
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411 |
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412 _pools_list->append(_metaspace_pool); |
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413 _pools_list->append(_class_metaspace_pool); |
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414 _managers_list->append(mgr); |
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415 } |
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416 |
| 0 | 417 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { |
| 418 for (int i = 0; i < _managers_list->length(); i++) { | |
| 419 MemoryManager* mgr = _managers_list->at(i); | |
| 420 if (mgr->is_manager(mh)) { | |
| 421 return mgr; | |
| 422 } | |
| 423 } | |
| 424 return NULL; | |
| 425 } | |
| 426 | |
| 427 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { | |
| 428 for (int i = 0; i < _pools_list->length(); i++) { | |
| 429 MemoryPool* pool = _pools_list->at(i); | |
| 430 if (pool->is_pool(ph)) { | |
| 431 return pool; | |
| 432 } | |
| 433 } | |
| 434 return NULL; | |
| 435 } | |
| 436 | |
| 437 void MemoryService::track_memory_usage() { | |
| 438 // Track the peak memory usage | |
| 439 for (int i = 0; i < _pools_list->length(); i++) { | |
| 440 MemoryPool* pool = _pools_list->at(i); | |
| 441 pool->record_peak_memory_usage(); | |
| 442 } | |
| 443 | |
| 444 // Detect low memory | |
| 445 LowMemoryDetector::detect_low_memory(); | |
| 446 } | |
| 447 | |
| 448 void MemoryService::track_memory_pool_usage(MemoryPool* pool) { | |
| 449 // Track the peak memory usage | |
| 450 pool->record_peak_memory_usage(); | |
| 451 | |
| 452 // Detect low memory | |
| 453 if (LowMemoryDetector::is_enabled(pool)) { | |
| 454 LowMemoryDetector::detect_low_memory(pool); | |
| 455 } | |
| 456 } | |
| 457 | |
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458 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime, |
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459 bool recordAccumulatedGCTime, |
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460 bool recordPreGCUsage, bool recordPeakUsage) { |
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461 |
| 0 | 462 GCMemoryManager* mgr; |
| 463 if (fullGC) { | |
| 464 mgr = _major_gc_manager; | |
| 465 } else { | |
| 466 mgr = _minor_gc_manager; | |
| 467 } | |
| 468 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
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469 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); |
| 0 | 470 |
| 471 // Track the peak memory usage when GC begins | |
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472 if (recordPeakUsage) { |
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473 for (int i = 0; i < _pools_list->length(); i++) { |
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474 MemoryPool* pool = _pools_list->at(i); |
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475 pool->record_peak_memory_usage(); |
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476 } |
| 0 | 477 } |
| 478 } | |
| 479 | |
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480 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage, |
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481 bool recordAccumulatedGCTime, |
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482 bool recordGCEndTime, bool countCollection, |
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483 GCCause::Cause cause) { |
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484 |
| 0 | 485 GCMemoryManager* mgr; |
| 486 if (fullGC) { | |
| 487 mgr = (GCMemoryManager*) _major_gc_manager; | |
| 488 } else { | |
| 489 mgr = (GCMemoryManager*) _minor_gc_manager; | |
| 490 } | |
| 491 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
| 492 | |
| 493 // register the GC end statistics and memory usage | |
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494 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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495 countCollection, cause); |
| 0 | 496 } |
| 497 | |
| 498 void MemoryService::oops_do(OopClosure* f) { | |
| 499 int i; | |
| 500 | |
| 501 for (i = 0; i < _pools_list->length(); i++) { | |
| 502 MemoryPool* pool = _pools_list->at(i); | |
| 503 pool->oops_do(f); | |
| 504 } | |
| 505 for (i = 0; i < _managers_list->length(); i++) { | |
| 506 MemoryManager* mgr = _managers_list->at(i); | |
| 507 mgr->oops_do(f); | |
| 508 } | |
| 509 } | |
| 510 | |
| 511 bool MemoryService::set_verbose(bool verbose) { | |
| 512 MutexLocker m(Management_lock); | |
| 513 // verbose will be set to the previous value | |
| 514 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT); | |
| 515 assert(succeed, "Setting PrintGC flag fails"); | |
| 516 ClassLoadingService::reset_trace_class_unloading(); | |
| 517 | |
| 518 return verbose; | |
| 519 } | |
| 520 | |
| 521 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { | |
|
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522 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); |
| 0 | 523 instanceKlassHandle ik(THREAD, k); |
| 524 | |
| 525 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH); | |
| 526 | |
| 527 JavaValue result(T_VOID); | |
| 528 JavaCallArguments args(10); | |
| 529 args.push_oop(obj); // receiver | |
| 530 args.push_long(usage.init_size_as_jlong()); // Argument 1 | |
| 531 args.push_long(usage.used_as_jlong()); // Argument 2 | |
| 532 args.push_long(usage.committed_as_jlong()); // Argument 3 | |
| 533 args.push_long(usage.max_size_as_jlong()); // Argument 4 | |
| 534 | |
| 535 JavaCalls::call_special(&result, | |
| 536 ik, | |
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537 vmSymbols::object_initializer_name(), |
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538 vmSymbols::long_long_long_long_void_signature(), |
| 0 | 539 &args, |
| 540 CHECK_NH); | |
| 541 return obj; | |
| 542 } | |
| 543 // | |
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544 // GC manager type depends on the type of Generation. Depending on the space |
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545 // availablity and vm options the gc uses major gc manager or minor gc |
| 0 | 546 // manager or both. The type of gc manager depends on the generation kind. |
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547 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor |
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548 // gc manager (so _fullGC is set to false ) and for other generation kinds |
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549 // doing mark-sweep-compact uses major gc manager (so _fullGC is set |
| 0 | 550 // to true). |
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551 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) { |
| 0 | 552 switch (kind) { |
| 553 case Generation::DefNew: | |
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554 #if INCLUDE_ALL_GCS |
| 0 | 555 case Generation::ParNew: |
| 556 case Generation::ASParNew: | |
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557 #endif // INCLUDE_ALL_GCS |
| 0 | 558 _fullGC=false; |
| 559 break; | |
| 560 case Generation::MarkSweepCompact: | |
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561 #if INCLUDE_ALL_GCS |
| 0 | 562 case Generation::ConcurrentMarkSweep: |
| 563 case Generation::ASConcurrentMarkSweep: | |
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564 #endif // INCLUDE_ALL_GCS |
| 0 | 565 _fullGC=true; |
| 566 break; | |
| 567 default: | |
| 568 assert(false, "Unrecognized gc generation kind."); | |
| 569 } | |
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570 // this has to be called in a stop the world pause and represent |
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571 // an entire gc pause, start to finish: |
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572 initialize(_fullGC, cause,true, true, true, true, true, true, true); |
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573 } |
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574 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC, |
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575 GCCause::Cause cause, |
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576 bool recordGCBeginTime, |
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577 bool recordPreGCUsage, |
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578 bool recordPeakUsage, |
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579 bool recordPostGCUsage, |
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580 bool recordAccumulatedGCTime, |
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581 bool recordGCEndTime, |
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582 bool countCollection) { |
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583 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, |
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584 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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585 countCollection); |
| 0 | 586 } |
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587 |
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588 // for a subclass to create then initialize an instance before invoking |
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589 // the MemoryService |
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590 void TraceMemoryManagerStats::initialize(bool fullGC, |
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591 GCCause::Cause cause, |
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592 bool recordGCBeginTime, |
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593 bool recordPreGCUsage, |
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594 bool recordPeakUsage, |
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595 bool recordPostGCUsage, |
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596 bool recordAccumulatedGCTime, |
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597 bool recordGCEndTime, |
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598 bool countCollection) { |
| 0 | 599 _fullGC = fullGC; |
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600 _recordGCBeginTime = recordGCBeginTime; |
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601 _recordPreGCUsage = recordPreGCUsage; |
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602 _recordPeakUsage = recordPeakUsage; |
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603 _recordPostGCUsage = recordPostGCUsage; |
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604 _recordAccumulatedGCTime = recordAccumulatedGCTime; |
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605 _recordGCEndTime = recordGCEndTime; |
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606 _countCollection = countCollection; |
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607 _cause = cause; |
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608 |
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609 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime, |
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610 _recordPreGCUsage, _recordPeakUsage); |
| 0 | 611 } |
| 612 | |
| 613 TraceMemoryManagerStats::~TraceMemoryManagerStats() { | |
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614 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime, |
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615 _recordGCEndTime, _countCollection, _cause); |
| 0 | 616 } |
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617 |