Mercurial > hg > truffle
annotate src/share/vm/services/memoryService.cpp @ 5763:a3d71693e0ce
removed bytecode disassembly from CodeCacheRuntime into separate BytecodeDisassembler class
removed VM call for doing bytecode disassembly
added support for explicitly excluding classes from JaCoCo (put '// JaCoCo Exclude' somewhere in the source file)
added node intrinsics to MaterializeNode
added snippets for the UnsignedMath classes
each file opened by CFGPrinter now includes a unique id in its name to avoid a race of multiple threads writing to the same file
the IdealGraphPrinter uses the new BytecodeDisassembler mechanism
teh UnsignedMath class is exclude from JaCoCo processing as it is used in snippets
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 04 Jul 2012 21:57:49 +0200 |
| parents | 78542e2b5e35 |
| children | d2a62e0f25eb |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2011, 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/permGen.hpp" | |
| 37 #include "memory/tenuredGeneration.hpp" | |
| 38 #include "oops/oop.inline.hpp" | |
| 39 #include "runtime/javaCalls.hpp" | |
| 40 #include "services/classLoadingService.hpp" | |
| 41 #include "services/lowMemoryDetector.hpp" | |
| 42 #include "services/management.hpp" | |
| 43 #include "services/memoryManager.hpp" | |
| 44 #include "services/memoryPool.hpp" | |
| 45 #include "services/memoryService.hpp" | |
| 46 #include "utilities/growableArray.hpp" | |
| 47 #ifndef SERIALGC | |
| 48 #include "gc_implementation/concurrentMarkSweep/cmsPermGen.hpp" | |
| 49 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp" | |
| 50 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
| 51 #include "gc_implementation/parNew/parNewGeneration.hpp" | |
| 52 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" | |
| 53 #include "gc_implementation/parallelScavenge/psOldGen.hpp" | |
| 54 #include "gc_implementation/parallelScavenge/psPermGen.hpp" | |
| 55 #include "gc_implementation/parallelScavenge/psYoungGen.hpp" | |
| 56 #include "services/g1MemoryPool.hpp" | |
| 57 #include "services/psMemoryPool.hpp" | |
| 58 #endif | |
| 0 | 59 |
| 60 GrowableArray<MemoryPool*>* MemoryService::_pools_list = | |
| 61 new (ResourceObj::C_HEAP) GrowableArray<MemoryPool*>(init_pools_list_size, true); | |
| 62 GrowableArray<MemoryManager*>* MemoryService::_managers_list = | |
| 63 new (ResourceObj::C_HEAP) GrowableArray<MemoryManager*>(init_managers_list_size, true); | |
| 64 | |
| 65 GCMemoryManager* MemoryService::_minor_gc_manager = NULL; | |
| 66 GCMemoryManager* MemoryService::_major_gc_manager = NULL; | |
| 67 MemoryPool* MemoryService::_code_heap_pool = NULL; | |
| 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 } | |
| 89 #ifndef SERIALGC | |
| 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 } |
| 0 | 98 #endif // SERIALGC |
| 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; | |
| 136 #ifndef SERIALGC | |
| 137 case Generation::ParNew: | |
| 138 case Generation::ASParNew: | |
| 139 _minor_gc_manager = MemoryManager::get_parnew_memory_manager(); | |
| 140 break; | |
| 141 #endif // SERIALGC | |
| 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(); | |
| 148 #ifndef SERIALGC | |
| 149 } else if (policy->is_concurrent_mark_sweep_policy()) { | |
| 150 _major_gc_manager = MemoryManager::get_cms_memory_manager(); | |
| 151 #endif // SERIALGC | |
| 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 PermGen::Name name = policy->permanent_generation()->name(); | |
| 165 switch (name) { | |
| 166 case PermGen::MarkSweepCompact: { | |
| 167 CompactingPermGenGen* perm_gen = (CompactingPermGenGen*) heap->perm_gen(); | |
| 168 add_compact_perm_gen_memory_pool(perm_gen, _major_gc_manager); | |
| 169 break; | |
| 170 } | |
| 171 #ifndef SERIALGC | |
| 172 case PermGen::ConcurrentMarkSweep: { | |
| 173 CMSPermGenGen* cms_gen = (CMSPermGenGen*) heap->perm_gen(); | |
| 174 add_cms_perm_gen_memory_pool(cms_gen, _major_gc_manager); | |
| 175 break; | |
| 176 } | |
| 177 #endif // SERIALGC | |
| 178 default: | |
| 179 guarantee(false, "Unrecognized perm generation"); | |
| 180 break; | |
| 181 } | |
| 182 } | |
| 183 | |
| 184 #ifndef SERIALGC | |
| 185 // Add memory pools for ParallelScavengeHeap | |
| 186 // This function currently only supports two generations collected heap. | |
| 187 // The collector for ParallelScavengeHeap will have two memory managers. | |
| 188 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) { | |
| 189 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC. | |
| 190 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager(); | |
| 191 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager(); | |
| 192 _managers_list->append(_minor_gc_manager); | |
| 193 _managers_list->append(_major_gc_manager); | |
| 194 | |
| 195 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); | |
| 196 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager); | |
| 197 add_psPerm_memory_pool(heap->perm_gen(), _major_gc_manager); | |
| 198 } | |
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200 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) { |
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201 assert(UseG1GC, "sanity"); |
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202 |
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203 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager(); |
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204 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager(); |
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205 _managers_list->append(_minor_gc_manager); |
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206 _managers_list->append(_major_gc_manager); |
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207 |
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208 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); |
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209 add_g1OldGen_memory_pool(g1h, _major_gc_manager); |
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210 add_g1PermGen_memory_pool(g1h, _major_gc_manager); |
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211 } |
| 0 | 212 #endif // SERIALGC |
| 213 | |
| 214 MemoryPool* MemoryService::add_gen(Generation* gen, | |
| 215 const char* name, | |
| 216 bool is_heap, | |
| 217 bool support_usage_threshold) { | |
| 218 | |
| 219 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 220 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold); | |
| 221 _pools_list->append(pool); | |
| 222 return (MemoryPool*) pool; | |
| 223 } | |
| 224 | |
| 225 MemoryPool* MemoryService::add_space(ContiguousSpace* space, | |
| 226 const char* name, | |
| 227 bool is_heap, | |
| 228 size_t max_size, | |
| 229 bool support_usage_threshold) { | |
| 230 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 231 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 232 | |
| 233 _pools_list->append(pool); | |
| 234 return (MemoryPool*) pool; | |
| 235 } | |
| 236 | |
| 237 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen, | |
| 238 const char* name, | |
| 239 bool is_heap, | |
| 240 size_t max_size, | |
| 241 bool support_usage_threshold) { | |
| 242 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 243 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold); | |
| 244 | |
| 245 _pools_list->append(pool); | |
| 246 return (MemoryPool*) pool; | |
| 247 } | |
| 248 | |
| 249 #ifndef SERIALGC | |
| 250 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space, | |
| 251 const char* name, | |
| 252 bool is_heap, | |
| 253 size_t max_size, | |
| 254 bool support_usage_threshold) { | |
| 255 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
| 256 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold); | |
| 257 _pools_list->append(pool); | |
| 258 return (MemoryPool*) pool; | |
| 259 } | |
| 260 #endif // SERIALGC | |
| 261 | |
| 262 // Add memory pool(s) for one generation | |
| 263 void MemoryService::add_generation_memory_pool(Generation* gen, | |
| 264 MemoryManager* major_mgr, | |
| 265 MemoryManager* minor_mgr) { | |
| 266 Generation::Name kind = gen->kind(); | |
| 267 int index = _pools_list->length(); | |
| 268 | |
| 269 switch (kind) { | |
| 270 case Generation::DefNew: { | |
| 271 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 272 DefNewGeneration* young_gen = (DefNewGeneration*) gen; | |
| 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 MemoryPool* eden = add_space(young_gen->eden(), | |
| 276 "Eden Space", | |
| 277 true, /* is_heap */ | |
| 278 young_gen->max_eden_size(), | |
| 279 false /* support_usage_threshold */); | |
| 280 MemoryPool* survivor = add_survivor_spaces(young_gen, | |
| 281 "Survivor Space", | |
| 282 true, /* is_heap */ | |
| 283 young_gen->max_survivor_size(), | |
| 284 false /* support_usage_threshold */); | |
| 285 break; | |
| 286 } | |
| 287 | |
| 288 #ifndef SERIALGC | |
| 289 case Generation::ParNew: | |
| 290 case Generation::ASParNew: | |
| 291 { | |
| 292 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 293 // Add a memory pool for each space and young gen doesn't | |
| 294 // support low memory detection as it is expected to get filled up. | |
| 295 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen; | |
| 296 MemoryPool* eden = add_space(parnew_gen->eden(), | |
| 297 "Par Eden Space", | |
| 298 true /* is_heap */, | |
| 299 parnew_gen->max_eden_size(), | |
| 300 false /* support_usage_threshold */); | |
| 301 MemoryPool* survivor = add_survivor_spaces(parnew_gen, | |
| 302 "Par Survivor Space", | |
| 303 true, /* is_heap */ | |
| 304 parnew_gen->max_survivor_size(), | |
| 305 false /* support_usage_threshold */); | |
| 306 | |
| 307 break; | |
| 308 } | |
| 309 #endif // SERIALGC | |
| 310 | |
| 311 case Generation::MarkSweepCompact: { | |
| 312 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 313 add_gen(gen, | |
| 314 "Tenured Gen", | |
| 315 true, /* is_heap */ | |
| 316 true /* support_usage_threshold */); | |
| 317 break; | |
| 318 } | |
| 319 | |
| 320 #ifndef SERIALGC | |
| 321 case Generation::ConcurrentMarkSweep: | |
| 322 case Generation::ASConcurrentMarkSweep: | |
| 323 { | |
| 324 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
| 325 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen; | |
| 326 MemoryPool* pool = add_cms_space(cms->cmsSpace(), | |
| 327 "CMS Old Gen", | |
| 328 true, /* is_heap */ | |
| 329 cms->reserved().byte_size(), | |
| 330 true /* support_usage_threshold */); | |
| 331 break; | |
| 332 } | |
| 333 #endif // SERIALGC | |
| 334 | |
| 335 default: | |
| 336 assert(false, "should not reach here"); | |
| 337 // no memory pool added for others | |
| 338 break; | |
| 339 } | |
| 340 | |
| 341 assert(major_mgr != NULL, "Should have at least one manager"); | |
| 342 // Link managers and the memory pools together | |
| 343 for (int i = index; i < _pools_list->length(); i++) { | |
| 344 MemoryPool* pool = _pools_list->at(i); | |
| 345 major_mgr->add_pool(pool); | |
| 346 if (minor_mgr != NULL) { | |
| 347 minor_mgr->add_pool(pool); | |
| 348 } | |
| 349 } | |
| 350 } | |
| 351 | |
| 352 void MemoryService::add_compact_perm_gen_memory_pool(CompactingPermGenGen* perm_gen, | |
| 353 MemoryManager* mgr) { | |
| 354 PermanentGenerationSpec* spec = perm_gen->spec(); | |
| 355 size_t max_size = spec->max_size() - spec->read_only_size() - spec->read_write_size(); | |
| 356 MemoryPool* pool = add_space(perm_gen->unshared_space(), | |
| 357 "Perm Gen", | |
| 358 false, /* is_heap */ | |
| 359 max_size, | |
| 360 true /* support_usage_threshold */); | |
| 361 mgr->add_pool(pool); | |
| 362 if (UseSharedSpaces) { | |
| 363 pool = add_space(perm_gen->ro_space(), | |
| 364 "Perm Gen [shared-ro]", | |
| 365 false, /* is_heap */ | |
| 366 spec->read_only_size(), | |
| 367 true /* support_usage_threshold */); | |
| 368 mgr->add_pool(pool); | |
| 369 | |
| 370 pool = add_space(perm_gen->rw_space(), | |
| 371 "Perm Gen [shared-rw]", | |
| 372 false, /* is_heap */ | |
| 373 spec->read_write_size(), | |
| 374 true /* support_usage_threshold */); | |
| 375 mgr->add_pool(pool); | |
| 376 } | |
| 377 } | |
| 378 | |
| 379 #ifndef SERIALGC | |
| 380 void MemoryService::add_cms_perm_gen_memory_pool(CMSPermGenGen* cms_gen, | |
| 381 MemoryManager* mgr) { | |
| 382 | |
| 383 MemoryPool* pool = add_cms_space(cms_gen->cmsSpace(), | |
| 384 "CMS Perm Gen", | |
| 385 false, /* is_heap */ | |
| 386 cms_gen->reserved().byte_size(), | |
| 387 true /* support_usage_threshold */); | |
| 388 mgr->add_pool(pool); | |
| 389 } | |
| 390 | |
| 391 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) { | |
| 392 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
| 393 | |
| 394 // Add a memory pool for each space and young gen doesn't | |
| 395 // support low memory detection as it is expected to get filled up. | |
| 396 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen, | |
| 397 gen->eden_space(), | |
| 398 "PS Eden Space", | |
| 399 MemoryPool::Heap, | |
| 400 false /* support_usage_threshold */); | |
| 401 | |
| 402 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen, | |
| 403 "PS Survivor Space", | |
| 404 MemoryPool::Heap, | |
| 405 false /* support_usage_threshold */); | |
| 406 | |
| 407 major_mgr->add_pool(eden); | |
| 408 major_mgr->add_pool(survivor); | |
| 409 minor_mgr->add_pool(eden); | |
| 410 minor_mgr->add_pool(survivor); | |
| 411 _pools_list->append(eden); | |
| 412 _pools_list->append(survivor); | |
| 413 } | |
| 414 | |
| 415 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) { | |
| 416 PSGenerationPool* old_gen = new PSGenerationPool(gen, | |
| 417 "PS Old Gen", | |
| 418 MemoryPool::Heap, | |
| 419 true /* support_usage_threshold */); | |
| 420 mgr->add_pool(old_gen); | |
| 421 _pools_list->append(old_gen); | |
| 422 } | |
| 423 | |
| 424 void MemoryService::add_psPerm_memory_pool(PSPermGen* gen, MemoryManager* mgr) { | |
| 425 PSGenerationPool* perm_gen = new PSGenerationPool(gen, | |
| 426 "PS Perm Gen", | |
| 427 MemoryPool::NonHeap, | |
| 428 true /* support_usage_threshold */); | |
| 429 mgr->add_pool(perm_gen); | |
| 430 _pools_list->append(perm_gen); | |
| 431 } | |
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433 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h, |
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434 MemoryManager* major_mgr, |
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435 MemoryManager* minor_mgr) { |
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436 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers"); |
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437 |
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438 G1EdenPool* eden = new G1EdenPool(g1h); |
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439 G1SurvivorPool* survivor = new G1SurvivorPool(g1h); |
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440 |
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441 major_mgr->add_pool(eden); |
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442 major_mgr->add_pool(survivor); |
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443 minor_mgr->add_pool(eden); |
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444 minor_mgr->add_pool(survivor); |
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445 _pools_list->append(eden); |
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446 _pools_list->append(survivor); |
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447 } |
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448 |
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449 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h, |
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450 MemoryManager* mgr) { |
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451 assert(mgr != NULL, "should have one manager"); |
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452 |
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453 G1OldGenPool* old_gen = new G1OldGenPool(g1h); |
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454 mgr->add_pool(old_gen); |
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455 _pools_list->append(old_gen); |
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456 } |
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457 |
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458 void MemoryService::add_g1PermGen_memory_pool(G1CollectedHeap* g1h, |
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459 MemoryManager* mgr) { |
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460 assert(mgr != NULL, "should have one manager"); |
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461 |
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462 CompactingPermGenGen* perm_gen = (CompactingPermGenGen*) g1h->perm_gen(); |
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463 PermanentGenerationSpec* spec = perm_gen->spec(); |
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464 size_t max_size = spec->max_size() - spec->read_only_size() |
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465 - spec->read_write_size(); |
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466 MemoryPool* pool = add_space(perm_gen->unshared_space(), |
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467 "G1 Perm Gen", |
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468 false, /* is_heap */ |
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469 max_size, |
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470 true /* support_usage_threshold */); |
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471 mgr->add_pool(pool); |
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472 |
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473 // in case we support CDS in G1 |
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474 if (UseSharedSpaces) { |
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475 pool = add_space(perm_gen->ro_space(), |
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476 "G1 Perm Gen [shared-ro]", |
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477 false, /* is_heap */ |
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478 spec->read_only_size(), |
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479 true /* support_usage_threshold */); |
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480 mgr->add_pool(pool); |
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481 |
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482 pool = add_space(perm_gen->rw_space(), |
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483 "G1 Perm Gen [shared-rw]", |
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484 false, /* is_heap */ |
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485 spec->read_write_size(), |
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486 true /* support_usage_threshold */); |
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487 mgr->add_pool(pool); |
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488 } |
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489 } |
| 0 | 490 #endif // SERIALGC |
| 491 | |
| 492 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) { | |
| 493 _code_heap_pool = new CodeHeapPool(heap, | |
| 494 "Code Cache", | |
| 495 true /* support_usage_threshold */); | |
| 496 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager(); | |
| 497 mgr->add_pool(_code_heap_pool); | |
| 498 | |
| 499 _pools_list->append(_code_heap_pool); | |
| 500 _managers_list->append(mgr); | |
| 501 } | |
| 502 | |
| 503 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { | |
| 504 for (int i = 0; i < _managers_list->length(); i++) { | |
| 505 MemoryManager* mgr = _managers_list->at(i); | |
| 506 if (mgr->is_manager(mh)) { | |
| 507 return mgr; | |
| 508 } | |
| 509 } | |
| 510 return NULL; | |
| 511 } | |
| 512 | |
| 513 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { | |
| 514 for (int i = 0; i < _pools_list->length(); i++) { | |
| 515 MemoryPool* pool = _pools_list->at(i); | |
| 516 if (pool->is_pool(ph)) { | |
| 517 return pool; | |
| 518 } | |
| 519 } | |
| 520 return NULL; | |
| 521 } | |
| 522 | |
| 523 void MemoryService::track_memory_usage() { | |
| 524 // Track the peak memory usage | |
| 525 for (int i = 0; i < _pools_list->length(); i++) { | |
| 526 MemoryPool* pool = _pools_list->at(i); | |
| 527 pool->record_peak_memory_usage(); | |
| 528 } | |
| 529 | |
| 530 // Detect low memory | |
| 531 LowMemoryDetector::detect_low_memory(); | |
| 532 } | |
| 533 | |
| 534 void MemoryService::track_memory_pool_usage(MemoryPool* pool) { | |
| 535 // Track the peak memory usage | |
| 536 pool->record_peak_memory_usage(); | |
| 537 | |
| 538 // Detect low memory | |
| 539 if (LowMemoryDetector::is_enabled(pool)) { | |
| 540 LowMemoryDetector::detect_low_memory(pool); | |
| 541 } | |
| 542 } | |
| 543 | |
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544 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime, |
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545 bool recordAccumulatedGCTime, |
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546 bool recordPreGCUsage, bool recordPeakUsage) { |
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547 |
| 0 | 548 GCMemoryManager* mgr; |
| 549 if (fullGC) { | |
| 550 mgr = _major_gc_manager; | |
| 551 } else { | |
| 552 mgr = _minor_gc_manager; | |
| 553 } | |
| 554 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
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555 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); |
| 0 | 556 |
| 557 // Track the peak memory usage when GC begins | |
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558 if (recordPeakUsage) { |
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559 for (int i = 0; i < _pools_list->length(); i++) { |
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560 MemoryPool* pool = _pools_list->at(i); |
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561 pool->record_peak_memory_usage(); |
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562 } |
| 0 | 563 } |
| 564 } | |
| 565 | |
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566 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage, |
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567 bool recordAccumulatedGCTime, |
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568 bool recordGCEndTime, bool countCollection, |
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569 GCCause::Cause cause) { |
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570 |
| 0 | 571 GCMemoryManager* mgr; |
| 572 if (fullGC) { | |
| 573 mgr = (GCMemoryManager*) _major_gc_manager; | |
| 574 } else { | |
| 575 mgr = (GCMemoryManager*) _minor_gc_manager; | |
| 576 } | |
| 577 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
| 578 | |
| 579 // register the GC end statistics and memory usage | |
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580 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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581 countCollection, cause); |
| 0 | 582 } |
| 583 | |
| 584 void MemoryService::oops_do(OopClosure* f) { | |
| 585 int i; | |
| 586 | |
| 587 for (i = 0; i < _pools_list->length(); i++) { | |
| 588 MemoryPool* pool = _pools_list->at(i); | |
| 589 pool->oops_do(f); | |
| 590 } | |
| 591 for (i = 0; i < _managers_list->length(); i++) { | |
| 592 MemoryManager* mgr = _managers_list->at(i); | |
| 593 mgr->oops_do(f); | |
| 594 } | |
| 595 } | |
| 596 | |
| 597 bool MemoryService::set_verbose(bool verbose) { | |
| 598 MutexLocker m(Management_lock); | |
| 599 // verbose will be set to the previous value | |
| 600 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT); | |
| 601 assert(succeed, "Setting PrintGC flag fails"); | |
| 602 ClassLoadingService::reset_trace_class_unloading(); | |
| 603 | |
| 604 return verbose; | |
| 605 } | |
| 606 | |
| 607 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { | |
| 608 klassOop k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); | |
| 609 instanceKlassHandle ik(THREAD, k); | |
| 610 | |
| 611 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH); | |
| 612 | |
| 613 JavaValue result(T_VOID); | |
| 614 JavaCallArguments args(10); | |
| 615 args.push_oop(obj); // receiver | |
| 616 args.push_long(usage.init_size_as_jlong()); // Argument 1 | |
| 617 args.push_long(usage.used_as_jlong()); // Argument 2 | |
| 618 args.push_long(usage.committed_as_jlong()); // Argument 3 | |
| 619 args.push_long(usage.max_size_as_jlong()); // Argument 4 | |
| 620 | |
| 621 JavaCalls::call_special(&result, | |
| 622 ik, | |
|
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623 vmSymbols::object_initializer_name(), |
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624 vmSymbols::long_long_long_long_void_signature(), |
| 0 | 625 &args, |
| 626 CHECK_NH); | |
| 627 return obj; | |
| 628 } | |
| 629 // | |
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630 // GC manager type depends on the type of Generation. Depending on the space |
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631 // availablity and vm options the gc uses major gc manager or minor gc |
| 0 | 632 // manager or both. The type of gc manager depends on the generation kind. |
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633 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor |
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634 // gc manager (so _fullGC is set to false ) and for other generation kinds |
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635 // doing mark-sweep-compact uses major gc manager (so _fullGC is set |
| 0 | 636 // to true). |
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637 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) { |
| 0 | 638 switch (kind) { |
| 639 case Generation::DefNew: | |
| 640 #ifndef SERIALGC | |
| 641 case Generation::ParNew: | |
| 642 case Generation::ASParNew: | |
| 643 #endif // SERIALGC | |
| 644 _fullGC=false; | |
| 645 break; | |
| 646 case Generation::MarkSweepCompact: | |
| 647 #ifndef SERIALGC | |
| 648 case Generation::ConcurrentMarkSweep: | |
| 649 case Generation::ASConcurrentMarkSweep: | |
| 650 #endif // SERIALGC | |
| 651 _fullGC=true; | |
| 652 break; | |
| 653 default: | |
| 654 assert(false, "Unrecognized gc generation kind."); | |
| 655 } | |
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656 // this has to be called in a stop the world pause and represent |
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657 // an entire gc pause, start to finish: |
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658 initialize(_fullGC, cause,true, true, true, true, true, true, true); |
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659 } |
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660 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC, |
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661 GCCause::Cause cause, |
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662 bool recordGCBeginTime, |
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663 bool recordPreGCUsage, |
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664 bool recordPeakUsage, |
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665 bool recordPostGCUsage, |
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666 bool recordAccumulatedGCTime, |
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667 bool recordGCEndTime, |
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668 bool countCollection) { |
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669 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, |
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670 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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671 countCollection); |
| 0 | 672 } |
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673 |
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674 // for a subclass to create then initialize an instance before invoking |
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675 // the MemoryService |
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676 void TraceMemoryManagerStats::initialize(bool fullGC, |
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677 GCCause::Cause cause, |
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678 bool recordGCBeginTime, |
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679 bool recordPreGCUsage, |
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680 bool recordPeakUsage, |
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681 bool recordPostGCUsage, |
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682 bool recordAccumulatedGCTime, |
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683 bool recordGCEndTime, |
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684 bool countCollection) { |
| 0 | 685 _fullGC = fullGC; |
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686 _recordGCBeginTime = recordGCBeginTime; |
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687 _recordPreGCUsage = recordPreGCUsage; |
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688 _recordPeakUsage = recordPeakUsage; |
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689 _recordPostGCUsage = recordPostGCUsage; |
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690 _recordAccumulatedGCTime = recordAccumulatedGCTime; |
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691 _recordGCEndTime = recordGCEndTime; |
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692 _countCollection = countCollection; |
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693 _cause = cause; |
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694 |
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695 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime, |
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696 _recordPreGCUsage, _recordPeakUsage); |
| 0 | 697 } |
| 698 | |
| 699 TraceMemoryManagerStats::~TraceMemoryManagerStats() { | |
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700 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime, |
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701 _recordGCEndTime, _countCollection, _cause); |
| 0 | 702 } |
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703 |