Mercurial > hg > graal-compiler
annotate src/share/vm/services/memoryService.cpp @ 8761:8b4ce9870fd6
8009156: [parfait] Null pointer deference in hotspot/src/share/vm/services/memoryService.cpp
Summary: add guarantee() to add_generation_memory_pool()
Reviewed-by: kvn, twisti
| author | morris |
|---|---|
| date | Sat, 16 Mar 2013 07:39:57 -0700 |
| parents | db9981fd3124 |
| children | 338b3a9e29b5 |
| 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 |
| 63 GCMemoryManager* MemoryService::_minor_gc_manager = NULL; | |
| 64 GCMemoryManager* MemoryService::_major_gc_manager = NULL; | |
| 65 MemoryPool* MemoryService::_code_heap_pool = NULL; | |
| 66 | |
| 67 class GcThreadCountClosure: public ThreadClosure { | |
| 68 private: | |
| 69 int _count; | |
| 70 public: | |
| 71 GcThreadCountClosure() : _count(0) {}; | |
| 72 void do_thread(Thread* thread); | |
| 73 int count() { return _count; } | |
| 74 }; | |
| 75 | |
| 76 void GcThreadCountClosure::do_thread(Thread* thread) { | |
| 77 _count++; | |
| 78 } | |
| 79 | |
| 80 void MemoryService::set_universe_heap(CollectedHeap* heap) { | |
| 81 CollectedHeap::Name kind = heap->kind(); | |
| 82 switch (kind) { | |
| 83 case CollectedHeap::GenCollectedHeap : { | |
| 84 add_gen_collected_heap_info(GenCollectedHeap::heap()); | |
| 85 break; | |
| 86 } | |
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87 #if INCLUDE_ALL_GCS |
| 0 | 88 case CollectedHeap::ParallelScavengeHeap : { |
| 89 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap()); | |
| 90 break; | |
| 91 } | |
| 342 | 92 case CollectedHeap::G1CollectedHeap : { |
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93 add_g1_heap_info(G1CollectedHeap::heap()); |
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94 break; |
| 342 | 95 } |
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96 #endif // INCLUDE_ALL_GCS |
| 0 | 97 default: { |
| 342 | 98 guarantee(false, "Unrecognized kind of heap"); |
| 0 | 99 } |
| 100 } | |
| 101 | |
| 102 // set the GC thread count | |
| 103 GcThreadCountClosure gctcc; | |
| 104 heap->gc_threads_do(&gctcc); | |
| 105 int count = gctcc.count(); | |
| 106 if (count > 0) { | |
| 107 _minor_gc_manager->set_num_gc_threads(count); | |
| 108 _major_gc_manager->set_num_gc_threads(count); | |
| 109 } | |
| 110 | |
| 111 // All memory pools and memory managers are initialized. | |
| 112 // | |
| 113 _minor_gc_manager->initialize_gc_stat_info(); | |
| 114 _major_gc_manager->initialize_gc_stat_info(); | |
| 115 } | |
| 116 | |
| 117 // Add memory pools for GenCollectedHeap | |
| 118 // This function currently only supports two generations collected heap. | |
| 119 // The collector for GenCollectedHeap will have two memory managers. | |
| 120 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) { | |
| 121 CollectorPolicy* policy = heap->collector_policy(); | |
| 122 | |
| 123 assert(policy->is_two_generation_policy(), "Only support two generations"); | |
| 124 guarantee(heap->n_gens() == 2, "Only support two-generation heap"); | |
| 125 | |
| 126 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy(); | |
| 127 if (two_gen_policy != NULL) { | |
| 128 GenerationSpec** specs = two_gen_policy->generations(); | |
| 129 Generation::Name kind = specs[0]->name(); | |
| 130 switch (kind) { | |
| 131 case Generation::DefNew: | |
| 132 _minor_gc_manager = MemoryManager::get_copy_memory_manager(); | |
| 133 break; | |
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134 #if INCLUDE_ALL_GCS |
| 0 | 135 case Generation::ParNew: |
| 136 case Generation::ASParNew: | |
| 137 _minor_gc_manager = MemoryManager::get_parnew_memory_manager(); | |
| 138 break; | |
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139 #endif // INCLUDE_ALL_GCS |
| 0 | 140 default: |
| 141 guarantee(false, "Unrecognized generation spec"); | |
| 142 break; | |
| 143 } | |
| 144 if (policy->is_mark_sweep_policy()) { | |
| 145 _major_gc_manager = MemoryManager::get_msc_memory_manager(); | |
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146 #if INCLUDE_ALL_GCS |
| 0 | 147 } else if (policy->is_concurrent_mark_sweep_policy()) { |
| 148 _major_gc_manager = MemoryManager::get_cms_memory_manager(); | |
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149 #endif // INCLUDE_ALL_GCS |
| 0 | 150 } else { |
| 151 guarantee(false, "Unknown two-gen policy"); | |
| 152 } | |
| 153 } else { | |
| 154 guarantee(false, "Non two-gen policy"); | |
| 155 } | |
| 156 _managers_list->append(_minor_gc_manager); | |
| 157 _managers_list->append(_major_gc_manager); | |
| 158 | |
| 159 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager); | |
| 160 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager); | |
| 161 } | |
| 162 | |
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163 #if INCLUDE_ALL_GCS |
| 0 | 164 // Add memory pools for ParallelScavengeHeap |
| 165 // This function currently only supports two generations collected heap. | |
| 166 // The collector for ParallelScavengeHeap will have two memory managers. | |
| 167 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) { | |
| 168 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC. | |
| 169 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager(); | |
| 170 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager(); | |
| 171 _managers_list->append(_minor_gc_manager); | |
| 172 _managers_list->append(_major_gc_manager); | |
| 173 | |
| 174 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); | |
| 175 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager); | |
| 176 } | |
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177 |
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178 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) { |
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179 assert(UseG1GC, "sanity"); |
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180 |
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181 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager(); |
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182 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager(); |
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183 _managers_list->append(_minor_gc_manager); |
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184 _managers_list->append(_major_gc_manager); |
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185 |
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186 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); |
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187 add_g1OldGen_memory_pool(g1h, _major_gc_manager); |
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188 } |
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189 #endif // INCLUDE_ALL_GCS |
| 0 | 190 |
| 191 MemoryPool* MemoryService::add_gen(Generation* gen, | |
| 192 const char* name, | |
| 193 bool is_heap, | |
| 194 bool support_usage_threshold) { | |
| 195 | |
| 196 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 197 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold); | |
| 198 _pools_list->append(pool); | |
| 199 return (MemoryPool*) pool; | |
| 200 } | |
| 201 | |
| 202 MemoryPool* MemoryService::add_space(ContiguousSpace* space, | |
| 203 const char* name, | |
| 204 bool is_heap, | |
| 205 size_t max_size, | |
| 206 bool support_usage_threshold) { | |
| 207 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 208 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 209 | |
| 210 _pools_list->append(pool); | |
| 211 return (MemoryPool*) pool; | |
| 212 } | |
| 213 | |
| 214 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen, | |
| 215 const char* name, | |
| 216 bool is_heap, | |
| 217 size_t max_size, | |
| 218 bool support_usage_threshold) { | |
| 219 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 220 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold); | |
| 221 | |
| 222 _pools_list->append(pool); | |
| 223 return (MemoryPool*) pool; | |
| 224 } | |
| 225 | |
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226 #if INCLUDE_ALL_GCS |
| 0 | 227 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space, |
| 228 const char* name, | |
| 229 bool is_heap, | |
| 230 size_t max_size, | |
| 231 bool support_usage_threshold) { | |
| 232 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 233 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 234 _pools_list->append(pool); | |
| 235 return (MemoryPool*) pool; | |
| 236 } | |
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237 #endif // INCLUDE_ALL_GCS |
| 0 | 238 |
| 239 // Add memory pool(s) for one generation | |
| 240 void MemoryService::add_generation_memory_pool(Generation* gen, | |
| 241 MemoryManager* major_mgr, | |
| 242 MemoryManager* minor_mgr) { | |
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243 guarantee(gen != NULL, "No generation for memory pool"); |
| 0 | 244 Generation::Name kind = gen->kind(); |
| 245 int index = _pools_list->length(); | |
| 246 | |
| 247 switch (kind) { | |
| 248 case Generation::DefNew: { | |
| 249 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 250 DefNewGeneration* young_gen = (DefNewGeneration*) gen; | |
| 251 // Add a memory pool for each space and young gen doesn't | |
| 252 // support low memory detection as it is expected to get filled up. | |
| 253 MemoryPool* eden = add_space(young_gen->eden(), | |
| 254 "Eden Space", | |
| 255 true, /* is_heap */ | |
| 256 young_gen->max_eden_size(), | |
| 257 false /* support_usage_threshold */); | |
| 258 MemoryPool* survivor = add_survivor_spaces(young_gen, | |
| 259 "Survivor Space", | |
| 260 true, /* is_heap */ | |
| 261 young_gen->max_survivor_size(), | |
| 262 false /* support_usage_threshold */); | |
| 263 break; | |
| 264 } | |
| 265 | |
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266 #if INCLUDE_ALL_GCS |
| 0 | 267 case Generation::ParNew: |
| 268 case Generation::ASParNew: | |
| 269 { | |
| 270 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 271 // Add a memory pool for each space and young gen doesn't | |
| 272 // support low memory detection as it is expected to get filled up. | |
| 273 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen; | |
| 274 MemoryPool* eden = add_space(parnew_gen->eden(), | |
| 275 "Par Eden Space", | |
| 276 true /* is_heap */, | |
| 277 parnew_gen->max_eden_size(), | |
| 278 false /* support_usage_threshold */); | |
| 279 MemoryPool* survivor = add_survivor_spaces(parnew_gen, | |
| 280 "Par Survivor Space", | |
| 281 true, /* is_heap */ | |
| 282 parnew_gen->max_survivor_size(), | |
| 283 false /* support_usage_threshold */); | |
| 284 | |
| 285 break; | |
| 286 } | |
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287 #endif // INCLUDE_ALL_GCS |
| 0 | 288 |
| 289 case Generation::MarkSweepCompact: { | |
| 290 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 291 add_gen(gen, | |
| 292 "Tenured Gen", | |
| 293 true, /* is_heap */ | |
| 294 true /* support_usage_threshold */); | |
| 295 break; | |
| 296 } | |
| 297 | |
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298 #if INCLUDE_ALL_GCS |
| 0 | 299 case Generation::ConcurrentMarkSweep: |
| 300 case Generation::ASConcurrentMarkSweep: | |
| 301 { | |
| 302 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 303 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen; | |
| 304 MemoryPool* pool = add_cms_space(cms->cmsSpace(), | |
| 305 "CMS Old Gen", | |
| 306 true, /* is_heap */ | |
| 307 cms->reserved().byte_size(), | |
| 308 true /* support_usage_threshold */); | |
| 309 break; | |
| 310 } | |
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311 #endif // INCLUDE_ALL_GCS |
| 0 | 312 |
| 313 default: | |
| 314 assert(false, "should not reach here"); | |
| 315 // no memory pool added for others | |
| 316 break; | |
| 317 } | |
| 318 | |
| 319 assert(major_mgr != NULL, "Should have at least one manager"); | |
| 320 // Link managers and the memory pools together | |
| 321 for (int i = index; i < _pools_list->length(); i++) { | |
| 322 MemoryPool* pool = _pools_list->at(i); | |
| 323 major_mgr->add_pool(pool); | |
| 324 if (minor_mgr != NULL) { | |
| 325 minor_mgr->add_pool(pool); | |
| 326 } | |
| 327 } | |
| 328 } | |
| 329 | |
| 330 | |
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331 #if INCLUDE_ALL_GCS |
| 0 | 332 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) { |
| 333 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 334 | |
| 335 // Add a memory pool for each space and young gen doesn't | |
| 336 // support low memory detection as it is expected to get filled up. | |
| 337 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen, | |
| 338 gen->eden_space(), | |
| 339 "PS Eden Space", | |
| 340 MemoryPool::Heap, | |
| 341 false /* support_usage_threshold */); | |
| 342 | |
| 343 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen, | |
| 344 "PS Survivor Space", | |
| 345 MemoryPool::Heap, | |
| 346 false /* support_usage_threshold */); | |
| 347 | |
| 348 major_mgr->add_pool(eden); | |
| 349 major_mgr->add_pool(survivor); | |
| 350 minor_mgr->add_pool(eden); | |
| 351 minor_mgr->add_pool(survivor); | |
| 352 _pools_list->append(eden); | |
| 353 _pools_list->append(survivor); | |
| 354 } | |
| 355 | |
| 356 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) { | |
| 357 PSGenerationPool* old_gen = new PSGenerationPool(gen, | |
| 358 "PS Old Gen", | |
| 359 MemoryPool::Heap, | |
| 360 true /* support_usage_threshold */); | |
| 361 mgr->add_pool(old_gen); | |
| 362 _pools_list->append(old_gen); | |
| 363 } | |
| 364 | |
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365 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h, |
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366 MemoryManager* major_mgr, |
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367 MemoryManager* minor_mgr) { |
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368 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers"); |
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369 |
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370 G1EdenPool* eden = new G1EdenPool(g1h); |
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371 G1SurvivorPool* survivor = new G1SurvivorPool(g1h); |
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372 |
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373 major_mgr->add_pool(eden); |
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374 major_mgr->add_pool(survivor); |
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375 minor_mgr->add_pool(eden); |
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376 minor_mgr->add_pool(survivor); |
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377 _pools_list->append(eden); |
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378 _pools_list->append(survivor); |
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379 } |
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380 |
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381 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h, |
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382 MemoryManager* mgr) { |
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383 assert(mgr != NULL, "should have one manager"); |
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384 |
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385 G1OldGenPool* old_gen = new G1OldGenPool(g1h); |
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386 mgr->add_pool(old_gen); |
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387 _pools_list->append(old_gen); |
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388 } |
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389 #endif // INCLUDE_ALL_GCS |
| 0 | 390 |
| 391 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) { | |
| 392 _code_heap_pool = new CodeHeapPool(heap, | |
| 393 "Code Cache", | |
| 394 true /* support_usage_threshold */); | |
| 395 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager(); | |
| 396 mgr->add_pool(_code_heap_pool); | |
| 397 | |
| 398 _pools_list->append(_code_heap_pool); | |
| 399 _managers_list->append(mgr); | |
| 400 } | |
| 401 | |
| 402 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { | |
| 403 for (int i = 0; i < _managers_list->length(); i++) { | |
| 404 MemoryManager* mgr = _managers_list->at(i); | |
| 405 if (mgr->is_manager(mh)) { | |
| 406 return mgr; | |
| 407 } | |
| 408 } | |
| 409 return NULL; | |
| 410 } | |
| 411 | |
| 412 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { | |
| 413 for (int i = 0; i < _pools_list->length(); i++) { | |
| 414 MemoryPool* pool = _pools_list->at(i); | |
| 415 if (pool->is_pool(ph)) { | |
| 416 return pool; | |
| 417 } | |
| 418 } | |
| 419 return NULL; | |
| 420 } | |
| 421 | |
| 422 void MemoryService::track_memory_usage() { | |
| 423 // Track the peak memory usage | |
| 424 for (int i = 0; i < _pools_list->length(); i++) { | |
| 425 MemoryPool* pool = _pools_list->at(i); | |
| 426 pool->record_peak_memory_usage(); | |
| 427 } | |
| 428 | |
| 429 // Detect low memory | |
| 430 LowMemoryDetector::detect_low_memory(); | |
| 431 } | |
| 432 | |
| 433 void MemoryService::track_memory_pool_usage(MemoryPool* pool) { | |
| 434 // Track the peak memory usage | |
| 435 pool->record_peak_memory_usage(); | |
| 436 | |
| 437 // Detect low memory | |
| 438 if (LowMemoryDetector::is_enabled(pool)) { | |
| 439 LowMemoryDetector::detect_low_memory(pool); | |
| 440 } | |
| 441 } | |
| 442 | |
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443 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime, |
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444 bool recordAccumulatedGCTime, |
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445 bool recordPreGCUsage, bool recordPeakUsage) { |
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446 |
| 0 | 447 GCMemoryManager* mgr; |
| 448 if (fullGC) { | |
| 449 mgr = _major_gc_manager; | |
| 450 } else { | |
| 451 mgr = _minor_gc_manager; | |
| 452 } | |
| 453 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
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454 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); |
| 0 | 455 |
| 456 // Track the peak memory usage when GC begins | |
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457 if (recordPeakUsage) { |
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458 for (int i = 0; i < _pools_list->length(); i++) { |
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459 MemoryPool* pool = _pools_list->at(i); |
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460 pool->record_peak_memory_usage(); |
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461 } |
| 0 | 462 } |
| 463 } | |
| 464 | |
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465 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage, |
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466 bool recordAccumulatedGCTime, |
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467 bool recordGCEndTime, bool countCollection, |
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468 GCCause::Cause cause) { |
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469 |
| 0 | 470 GCMemoryManager* mgr; |
| 471 if (fullGC) { | |
| 472 mgr = (GCMemoryManager*) _major_gc_manager; | |
| 473 } else { | |
| 474 mgr = (GCMemoryManager*) _minor_gc_manager; | |
| 475 } | |
| 476 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
| 477 | |
| 478 // register the GC end statistics and memory usage | |
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479 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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480 countCollection, cause); |
| 0 | 481 } |
| 482 | |
| 483 void MemoryService::oops_do(OopClosure* f) { | |
| 484 int i; | |
| 485 | |
| 486 for (i = 0; i < _pools_list->length(); i++) { | |
| 487 MemoryPool* pool = _pools_list->at(i); | |
| 488 pool->oops_do(f); | |
| 489 } | |
| 490 for (i = 0; i < _managers_list->length(); i++) { | |
| 491 MemoryManager* mgr = _managers_list->at(i); | |
| 492 mgr->oops_do(f); | |
| 493 } | |
| 494 } | |
| 495 | |
| 496 bool MemoryService::set_verbose(bool verbose) { | |
| 497 MutexLocker m(Management_lock); | |
| 498 // verbose will be set to the previous value | |
| 499 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT); | |
| 500 assert(succeed, "Setting PrintGC flag fails"); | |
| 501 ClassLoadingService::reset_trace_class_unloading(); | |
| 502 | |
| 503 return verbose; | |
| 504 } | |
| 505 | |
| 506 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { | |
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507 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); |
| 0 | 508 instanceKlassHandle ik(THREAD, k); |
| 509 | |
| 510 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH); | |
| 511 | |
| 512 JavaValue result(T_VOID); | |
| 513 JavaCallArguments args(10); | |
| 514 args.push_oop(obj); // receiver | |
| 515 args.push_long(usage.init_size_as_jlong()); // Argument 1 | |
| 516 args.push_long(usage.used_as_jlong()); // Argument 2 | |
| 517 args.push_long(usage.committed_as_jlong()); // Argument 3 | |
| 518 args.push_long(usage.max_size_as_jlong()); // Argument 4 | |
| 519 | |
| 520 JavaCalls::call_special(&result, | |
| 521 ik, | |
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522 vmSymbols::object_initializer_name(), |
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523 vmSymbols::long_long_long_long_void_signature(), |
| 0 | 524 &args, |
| 525 CHECK_NH); | |
| 526 return obj; | |
| 527 } | |
| 528 // | |
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529 // GC manager type depends on the type of Generation. Depending on the space |
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530 // availablity and vm options the gc uses major gc manager or minor gc |
| 0 | 531 // manager or both. The type of gc manager depends on the generation kind. |
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532 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor |
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533 // gc manager (so _fullGC is set to false ) and for other generation kinds |
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534 // doing mark-sweep-compact uses major gc manager (so _fullGC is set |
| 0 | 535 // to true). |
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536 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) { |
| 0 | 537 switch (kind) { |
| 538 case Generation::DefNew: | |
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539 #if INCLUDE_ALL_GCS |
| 0 | 540 case Generation::ParNew: |
| 541 case Generation::ASParNew: | |
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542 #endif // INCLUDE_ALL_GCS |
| 0 | 543 _fullGC=false; |
| 544 break; | |
| 545 case Generation::MarkSweepCompact: | |
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546 #if INCLUDE_ALL_GCS |
| 0 | 547 case Generation::ConcurrentMarkSweep: |
| 548 case Generation::ASConcurrentMarkSweep: | |
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549 #endif // INCLUDE_ALL_GCS |
| 0 | 550 _fullGC=true; |
| 551 break; | |
| 552 default: | |
| 553 assert(false, "Unrecognized gc generation kind."); | |
| 554 } | |
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555 // this has to be called in a stop the world pause and represent |
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556 // an entire gc pause, start to finish: |
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557 initialize(_fullGC, cause,true, true, true, true, true, true, true); |
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558 } |
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559 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC, |
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560 GCCause::Cause cause, |
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561 bool recordGCBeginTime, |
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562 bool recordPreGCUsage, |
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563 bool recordPeakUsage, |
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564 bool recordPostGCUsage, |
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565 bool recordAccumulatedGCTime, |
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566 bool recordGCEndTime, |
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567 bool countCollection) { |
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568 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, |
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569 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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570 countCollection); |
| 0 | 571 } |
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572 |
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573 // for a subclass to create then initialize an instance before invoking |
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574 // the MemoryService |
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575 void TraceMemoryManagerStats::initialize(bool fullGC, |
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576 GCCause::Cause cause, |
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577 bool recordGCBeginTime, |
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578 bool recordPreGCUsage, |
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579 bool recordPeakUsage, |
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580 bool recordPostGCUsage, |
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581 bool recordAccumulatedGCTime, |
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582 bool recordGCEndTime, |
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583 bool countCollection) { |
| 0 | 584 _fullGC = fullGC; |
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585 _recordGCBeginTime = recordGCBeginTime; |
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586 _recordPreGCUsage = recordPreGCUsage; |
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587 _recordPeakUsage = recordPeakUsage; |
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588 _recordPostGCUsage = recordPostGCUsage; |
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589 _recordAccumulatedGCTime = recordAccumulatedGCTime; |
|
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590 _recordGCEndTime = recordGCEndTime; |
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591 _countCollection = countCollection; |
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592 _cause = cause; |
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593 |
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594 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime, |
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595 _recordPreGCUsage, _recordPeakUsage); |
| 0 | 596 } |
| 597 | |
| 598 TraceMemoryManagerStats::~TraceMemoryManagerStats() { | |
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599 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime, |
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600 _recordGCEndTime, _countCollection, _cause); |
| 0 | 601 } |
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602 |