Mercurial > hg > truffle
annotate src/share/vm/services/memoryService.cpp @ 11722:ff05c78a7f64
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author | Christian Wirth <christian.wirth@oracle.com> |
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date | Thu, 19 Sep 2013 10:36:56 +0200 |
parents | 71963b3f802a |
children | 7944aba7ba41 |
rev | line source |
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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" | |
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38 #include "runtime/globals.hpp" |
1972 | 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" | |
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47 #include "utilities/macros.hpp" |
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48 #if INCLUDE_ALL_GCS |
1972 | 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/psYoungGen.hpp" | |
55 #include "services/g1MemoryPool.hpp" | |
56 #include "services/psMemoryPool.hpp" | |
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57 #endif // INCLUDE_ALL_GCS |
0 | 58 |
59 GrowableArray<MemoryPool*>* MemoryService::_pools_list = | |
6197 | 60 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true); |
0 | 61 GrowableArray<MemoryManager*>* MemoryService::_managers_list = |
6197 | 62 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true); |
0 | 63 |
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64 GCMemoryManager* MemoryService::_minor_gc_manager = NULL; |
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65 GCMemoryManager* MemoryService::_major_gc_manager = NULL; |
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66 MemoryPool* MemoryService::_code_heap_pool = NULL; |
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67 MemoryPool* MemoryService::_metaspace_pool = NULL; |
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68 MemoryPool* MemoryService::_compressed_class_pool = NULL; |
0 | 69 |
70 class GcThreadCountClosure: public ThreadClosure { | |
71 private: | |
72 int _count; | |
73 public: | |
74 GcThreadCountClosure() : _count(0) {}; | |
75 void do_thread(Thread* thread); | |
76 int count() { return _count; } | |
77 }; | |
78 | |
79 void GcThreadCountClosure::do_thread(Thread* thread) { | |
80 _count++; | |
81 } | |
82 | |
83 void MemoryService::set_universe_heap(CollectedHeap* heap) { | |
84 CollectedHeap::Name kind = heap->kind(); | |
85 switch (kind) { | |
86 case CollectedHeap::GenCollectedHeap : { | |
87 add_gen_collected_heap_info(GenCollectedHeap::heap()); | |
88 break; | |
89 } | |
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90 #if INCLUDE_ALL_GCS |
0 | 91 case CollectedHeap::ParallelScavengeHeap : { |
92 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap()); | |
93 break; | |
94 } | |
342 | 95 case CollectedHeap::G1CollectedHeap : { |
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96 add_g1_heap_info(G1CollectedHeap::heap()); |
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97 break; |
342 | 98 } |
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99 #endif // INCLUDE_ALL_GCS |
0 | 100 default: { |
342 | 101 guarantee(false, "Unrecognized kind of heap"); |
0 | 102 } |
103 } | |
104 | |
105 // set the GC thread count | |
106 GcThreadCountClosure gctcc; | |
107 heap->gc_threads_do(&gctcc); | |
108 int count = gctcc.count(); | |
109 if (count > 0) { | |
110 _minor_gc_manager->set_num_gc_threads(count); | |
111 _major_gc_manager->set_num_gc_threads(count); | |
112 } | |
113 | |
114 // All memory pools and memory managers are initialized. | |
115 // | |
116 _minor_gc_manager->initialize_gc_stat_info(); | |
117 _major_gc_manager->initialize_gc_stat_info(); | |
118 } | |
119 | |
120 // Add memory pools for GenCollectedHeap | |
121 // This function currently only supports two generations collected heap. | |
122 // The collector for GenCollectedHeap will have two memory managers. | |
123 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) { | |
124 CollectorPolicy* policy = heap->collector_policy(); | |
125 | |
126 assert(policy->is_two_generation_policy(), "Only support two generations"); | |
127 guarantee(heap->n_gens() == 2, "Only support two-generation heap"); | |
128 | |
129 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy(); | |
130 if (two_gen_policy != NULL) { | |
131 GenerationSpec** specs = two_gen_policy->generations(); | |
132 Generation::Name kind = specs[0]->name(); | |
133 switch (kind) { | |
134 case Generation::DefNew: | |
135 _minor_gc_manager = MemoryManager::get_copy_memory_manager(); | |
136 break; | |
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137 #if INCLUDE_ALL_GCS |
0 | 138 case Generation::ParNew: |
139 case Generation::ASParNew: | |
140 _minor_gc_manager = MemoryManager::get_parnew_memory_manager(); | |
141 break; | |
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142 #endif // INCLUDE_ALL_GCS |
0 | 143 default: |
144 guarantee(false, "Unrecognized generation spec"); | |
145 break; | |
146 } | |
147 if (policy->is_mark_sweep_policy()) { | |
148 _major_gc_manager = MemoryManager::get_msc_memory_manager(); | |
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149 #if INCLUDE_ALL_GCS |
0 | 150 } else if (policy->is_concurrent_mark_sweep_policy()) { |
151 _major_gc_manager = MemoryManager::get_cms_memory_manager(); | |
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152 #endif // INCLUDE_ALL_GCS |
0 | 153 } else { |
154 guarantee(false, "Unknown two-gen policy"); | |
155 } | |
156 } else { | |
157 guarantee(false, "Non two-gen policy"); | |
158 } | |
159 _managers_list->append(_minor_gc_manager); | |
160 _managers_list->append(_major_gc_manager); | |
161 | |
162 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager); | |
163 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager); | |
164 } | |
165 | |
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166 #if INCLUDE_ALL_GCS |
0 | 167 // Add memory pools for ParallelScavengeHeap |
168 // This function currently only supports two generations collected heap. | |
169 // The collector for ParallelScavengeHeap will have two memory managers. | |
170 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) { | |
171 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC. | |
172 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager(); | |
173 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager(); | |
174 _managers_list->append(_minor_gc_manager); | |
175 _managers_list->append(_major_gc_manager); | |
176 | |
177 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager); | |
178 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager); | |
179 } | |
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180 |
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181 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) { |
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182 assert(UseG1GC, "sanity"); |
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183 |
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184 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager(); |
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185 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager(); |
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186 _managers_list->append(_minor_gc_manager); |
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187 _managers_list->append(_major_gc_manager); |
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188 |
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189 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager); |
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190 add_g1OldGen_memory_pool(g1h, _major_gc_manager); |
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191 } |
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192 #endif // INCLUDE_ALL_GCS |
0 | 193 |
194 MemoryPool* MemoryService::add_gen(Generation* gen, | |
195 const char* name, | |
196 bool is_heap, | |
197 bool support_usage_threshold) { | |
198 | |
199 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
200 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold); | |
201 _pools_list->append(pool); | |
202 return (MemoryPool*) pool; | |
203 } | |
204 | |
205 MemoryPool* MemoryService::add_space(ContiguousSpace* space, | |
206 const char* name, | |
207 bool is_heap, | |
208 size_t max_size, | |
209 bool support_usage_threshold) { | |
210 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
211 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold); | |
212 | |
213 _pools_list->append(pool); | |
214 return (MemoryPool*) pool; | |
215 } | |
216 | |
217 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen, | |
218 const char* name, | |
219 bool is_heap, | |
220 size_t max_size, | |
221 bool support_usage_threshold) { | |
222 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
223 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold); | |
224 | |
225 _pools_list->append(pool); | |
226 return (MemoryPool*) pool; | |
227 } | |
228 | |
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229 #if INCLUDE_ALL_GCS |
0 | 230 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space, |
231 const char* name, | |
232 bool is_heap, | |
233 size_t max_size, | |
234 bool support_usage_threshold) { | |
235 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap); | |
236 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold); | |
237 _pools_list->append(pool); | |
238 return (MemoryPool*) pool; | |
239 } | |
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240 #endif // INCLUDE_ALL_GCS |
0 | 241 |
242 // Add memory pool(s) for one generation | |
243 void MemoryService::add_generation_memory_pool(Generation* gen, | |
244 MemoryManager* major_mgr, | |
245 MemoryManager* minor_mgr) { | |
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246 guarantee(gen != NULL, "No generation for memory pool"); |
0 | 247 Generation::Name kind = gen->kind(); |
248 int index = _pools_list->length(); | |
249 | |
250 switch (kind) { | |
251 case Generation::DefNew: { | |
252 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
253 DefNewGeneration* young_gen = (DefNewGeneration*) gen; | |
254 // Add a memory pool for each space and young gen doesn't | |
255 // support low memory detection as it is expected to get filled up. | |
256 MemoryPool* eden = add_space(young_gen->eden(), | |
257 "Eden Space", | |
258 true, /* is_heap */ | |
259 young_gen->max_eden_size(), | |
260 false /* support_usage_threshold */); | |
261 MemoryPool* survivor = add_survivor_spaces(young_gen, | |
262 "Survivor Space", | |
263 true, /* is_heap */ | |
264 young_gen->max_survivor_size(), | |
265 false /* support_usage_threshold */); | |
266 break; | |
267 } | |
268 | |
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269 #if INCLUDE_ALL_GCS |
0 | 270 case Generation::ParNew: |
271 case Generation::ASParNew: | |
272 { | |
273 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
274 // Add a memory pool for each space and young gen doesn't | |
275 // support low memory detection as it is expected to get filled up. | |
276 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen; | |
277 MemoryPool* eden = add_space(parnew_gen->eden(), | |
278 "Par Eden Space", | |
279 true /* is_heap */, | |
280 parnew_gen->max_eden_size(), | |
281 false /* support_usage_threshold */); | |
282 MemoryPool* survivor = add_survivor_spaces(parnew_gen, | |
283 "Par Survivor Space", | |
284 true, /* is_heap */ | |
285 parnew_gen->max_survivor_size(), | |
286 false /* support_usage_threshold */); | |
287 | |
288 break; | |
289 } | |
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290 #endif // INCLUDE_ALL_GCS |
0 | 291 |
292 case Generation::MarkSweepCompact: { | |
293 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
294 add_gen(gen, | |
295 "Tenured Gen", | |
296 true, /* is_heap */ | |
297 true /* support_usage_threshold */); | |
298 break; | |
299 } | |
300 | |
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301 #if INCLUDE_ALL_GCS |
0 | 302 case Generation::ConcurrentMarkSweep: |
303 case Generation::ASConcurrentMarkSweep: | |
304 { | |
305 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager"); | |
306 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen; | |
307 MemoryPool* pool = add_cms_space(cms->cmsSpace(), | |
308 "CMS Old Gen", | |
309 true, /* is_heap */ | |
310 cms->reserved().byte_size(), | |
311 true /* support_usage_threshold */); | |
312 break; | |
313 } | |
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314 #endif // INCLUDE_ALL_GCS |
0 | 315 |
316 default: | |
317 assert(false, "should not reach here"); | |
318 // no memory pool added for others | |
319 break; | |
320 } | |
321 | |
322 assert(major_mgr != NULL, "Should have at least one manager"); | |
323 // Link managers and the memory pools together | |
324 for (int i = index; i < _pools_list->length(); i++) { | |
325 MemoryPool* pool = _pools_list->at(i); | |
326 major_mgr->add_pool(pool); | |
327 if (minor_mgr != NULL) { | |
328 minor_mgr->add_pool(pool); | |
329 } | |
330 } | |
331 } | |
332 | |
333 | |
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334 #if INCLUDE_ALL_GCS |
0 | 335 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) { |
336 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers"); | |
337 | |
338 // Add a memory pool for each space and young gen doesn't | |
339 // support low memory detection as it is expected to get filled up. | |
340 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen, | |
341 gen->eden_space(), | |
342 "PS Eden Space", | |
343 MemoryPool::Heap, | |
344 false /* support_usage_threshold */); | |
345 | |
346 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen, | |
347 "PS Survivor Space", | |
348 MemoryPool::Heap, | |
349 false /* support_usage_threshold */); | |
350 | |
351 major_mgr->add_pool(eden); | |
352 major_mgr->add_pool(survivor); | |
353 minor_mgr->add_pool(eden); | |
354 minor_mgr->add_pool(survivor); | |
355 _pools_list->append(eden); | |
356 _pools_list->append(survivor); | |
357 } | |
358 | |
359 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) { | |
360 PSGenerationPool* old_gen = new PSGenerationPool(gen, | |
361 "PS Old Gen", | |
362 MemoryPool::Heap, | |
363 true /* support_usage_threshold */); | |
364 mgr->add_pool(old_gen); | |
365 _pools_list->append(old_gen); | |
366 } | |
367 | |
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368 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h, |
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369 MemoryManager* major_mgr, |
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370 MemoryManager* minor_mgr) { |
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371 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers"); |
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372 |
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373 G1EdenPool* eden = new G1EdenPool(g1h); |
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374 G1SurvivorPool* survivor = new G1SurvivorPool(g1h); |
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375 |
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376 major_mgr->add_pool(eden); |
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377 major_mgr->add_pool(survivor); |
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378 minor_mgr->add_pool(eden); |
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379 minor_mgr->add_pool(survivor); |
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380 _pools_list->append(eden); |
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381 _pools_list->append(survivor); |
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382 } |
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383 |
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384 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h, |
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385 MemoryManager* mgr) { |
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386 assert(mgr != NULL, "should have one manager"); |
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387 |
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388 G1OldGenPool* old_gen = new G1OldGenPool(g1h); |
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389 mgr->add_pool(old_gen); |
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390 _pools_list->append(old_gen); |
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391 } |
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392 #endif // INCLUDE_ALL_GCS |
0 | 393 |
394 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) { | |
395 _code_heap_pool = new CodeHeapPool(heap, | |
396 "Code Cache", | |
397 true /* support_usage_threshold */); | |
398 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager(); | |
399 mgr->add_pool(_code_heap_pool); | |
400 | |
401 _pools_list->append(_code_heap_pool); | |
402 _managers_list->append(mgr); | |
403 } | |
404 | |
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405 void MemoryService::add_metaspace_memory_pools() { |
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406 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager(); |
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407 |
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408 _metaspace_pool = new MetaspacePool(); |
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409 mgr->add_pool(_metaspace_pool); |
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410 _pools_list->append(_metaspace_pool); |
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411 |
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412 if (UseCompressedKlassPointers) { |
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413 _compressed_class_pool = new CompressedKlassSpacePool(); |
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414 mgr->add_pool(_compressed_class_pool); |
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415 _pools_list->append(_compressed_class_pool); |
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416 } |
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417 |
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418 _managers_list->append(mgr); |
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419 } |
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420 |
0 | 421 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { |
422 for (int i = 0; i < _managers_list->length(); i++) { | |
423 MemoryManager* mgr = _managers_list->at(i); | |
424 if (mgr->is_manager(mh)) { | |
425 return mgr; | |
426 } | |
427 } | |
428 return NULL; | |
429 } | |
430 | |
431 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { | |
432 for (int i = 0; i < _pools_list->length(); i++) { | |
433 MemoryPool* pool = _pools_list->at(i); | |
434 if (pool->is_pool(ph)) { | |
435 return pool; | |
436 } | |
437 } | |
438 return NULL; | |
439 } | |
440 | |
441 void MemoryService::track_memory_usage() { | |
442 // Track the peak memory usage | |
443 for (int i = 0; i < _pools_list->length(); i++) { | |
444 MemoryPool* pool = _pools_list->at(i); | |
445 pool->record_peak_memory_usage(); | |
446 } | |
447 | |
448 // Detect low memory | |
449 LowMemoryDetector::detect_low_memory(); | |
450 } | |
451 | |
452 void MemoryService::track_memory_pool_usage(MemoryPool* pool) { | |
453 // Track the peak memory usage | |
454 pool->record_peak_memory_usage(); | |
455 | |
456 // Detect low memory | |
457 if (LowMemoryDetector::is_enabled(pool)) { | |
458 LowMemoryDetector::detect_low_memory(pool); | |
459 } | |
460 } | |
461 | |
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462 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime, |
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463 bool recordAccumulatedGCTime, |
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464 bool recordPreGCUsage, bool recordPeakUsage) { |
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465 |
0 | 466 GCMemoryManager* mgr; |
467 if (fullGC) { | |
468 mgr = _major_gc_manager; | |
469 } else { | |
470 mgr = _minor_gc_manager; | |
471 } | |
472 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
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473 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); |
0 | 474 |
475 // Track the peak memory usage when GC begins | |
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476 if (recordPeakUsage) { |
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477 for (int i = 0; i < _pools_list->length(); i++) { |
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478 MemoryPool* pool = _pools_list->at(i); |
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479 pool->record_peak_memory_usage(); |
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480 } |
0 | 481 } |
482 } | |
483 | |
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484 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage, |
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485 bool recordAccumulatedGCTime, |
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486 bool recordGCEndTime, bool countCollection, |
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487 GCCause::Cause cause) { |
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488 |
0 | 489 GCMemoryManager* mgr; |
490 if (fullGC) { | |
491 mgr = (GCMemoryManager*) _major_gc_manager; | |
492 } else { | |
493 mgr = (GCMemoryManager*) _minor_gc_manager; | |
494 } | |
495 assert(mgr->is_gc_memory_manager(), "Sanity check"); | |
496 | |
497 // register the GC end statistics and memory usage | |
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498 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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499 countCollection, cause); |
0 | 500 } |
501 | |
502 void MemoryService::oops_do(OopClosure* f) { | |
503 int i; | |
504 | |
505 for (i = 0; i < _pools_list->length(); i++) { | |
506 MemoryPool* pool = _pools_list->at(i); | |
507 pool->oops_do(f); | |
508 } | |
509 for (i = 0; i < _managers_list->length(); i++) { | |
510 MemoryManager* mgr = _managers_list->at(i); | |
511 mgr->oops_do(f); | |
512 } | |
513 } | |
514 | |
515 bool MemoryService::set_verbose(bool verbose) { | |
516 MutexLocker m(Management_lock); | |
517 // verbose will be set to the previous value | |
518 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT); | |
519 assert(succeed, "Setting PrintGC flag fails"); | |
520 ClassLoadingService::reset_trace_class_unloading(); | |
521 | |
522 return verbose; | |
523 } | |
524 | |
525 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { | |
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526 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); |
0 | 527 instanceKlassHandle ik(THREAD, k); |
528 | |
529 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH); | |
530 | |
531 JavaValue result(T_VOID); | |
532 JavaCallArguments args(10); | |
533 args.push_oop(obj); // receiver | |
534 args.push_long(usage.init_size_as_jlong()); // Argument 1 | |
535 args.push_long(usage.used_as_jlong()); // Argument 2 | |
536 args.push_long(usage.committed_as_jlong()); // Argument 3 | |
537 args.push_long(usage.max_size_as_jlong()); // Argument 4 | |
538 | |
539 JavaCalls::call_special(&result, | |
540 ik, | |
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541 vmSymbols::object_initializer_name(), |
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542 vmSymbols::long_long_long_long_void_signature(), |
0 | 543 &args, |
544 CHECK_NH); | |
545 return obj; | |
546 } | |
547 // | |
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548 // GC manager type depends on the type of Generation. Depending on the space |
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549 // availablity and vm options the gc uses major gc manager or minor gc |
0 | 550 // manager or both. The type of gc manager depends on the generation kind. |
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551 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor |
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552 // gc manager (so _fullGC is set to false ) and for other generation kinds |
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553 // doing mark-sweep-compact uses major gc manager (so _fullGC is set |
0 | 554 // to true). |
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555 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) { |
0 | 556 switch (kind) { |
557 case Generation::DefNew: | |
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558 #if INCLUDE_ALL_GCS |
0 | 559 case Generation::ParNew: |
560 case Generation::ASParNew: | |
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561 #endif // INCLUDE_ALL_GCS |
0 | 562 _fullGC=false; |
563 break; | |
564 case Generation::MarkSweepCompact: | |
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565 #if INCLUDE_ALL_GCS |
0 | 566 case Generation::ConcurrentMarkSweep: |
567 case Generation::ASConcurrentMarkSweep: | |
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568 #endif // INCLUDE_ALL_GCS |
0 | 569 _fullGC=true; |
570 break; | |
571 default: | |
572 assert(false, "Unrecognized gc generation kind."); | |
573 } | |
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574 // this has to be called in a stop the world pause and represent |
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575 // an entire gc pause, start to finish: |
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576 initialize(_fullGC, cause,true, true, true, true, true, true, true); |
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577 } |
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578 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC, |
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579 GCCause::Cause cause, |
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580 bool recordGCBeginTime, |
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581 bool recordPreGCUsage, |
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582 bool recordPeakUsage, |
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583 bool recordPostGCUsage, |
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584 bool recordAccumulatedGCTime, |
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585 bool recordGCEndTime, |
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586 bool countCollection) { |
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587 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, |
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588 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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589 countCollection); |
0 | 590 } |
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591 |
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592 // for a subclass to create then initialize an instance before invoking |
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593 // the MemoryService |
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594 void TraceMemoryManagerStats::initialize(bool fullGC, |
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595 GCCause::Cause cause, |
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596 bool recordGCBeginTime, |
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597 bool recordPreGCUsage, |
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598 bool recordPeakUsage, |
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599 bool recordPostGCUsage, |
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600 bool recordAccumulatedGCTime, |
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601 bool recordGCEndTime, |
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602 bool countCollection) { |
0 | 603 _fullGC = fullGC; |
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604 _recordGCBeginTime = recordGCBeginTime; |
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605 _recordPreGCUsage = recordPreGCUsage; |
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606 _recordPeakUsage = recordPeakUsage; |
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607 _recordPostGCUsage = recordPostGCUsage; |
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608 _recordAccumulatedGCTime = recordAccumulatedGCTime; |
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609 _recordGCEndTime = recordGCEndTime; |
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610 _countCollection = countCollection; |
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611 _cause = cause; |
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612 |
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613 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime, |
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614 _recordPreGCUsage, _recordPeakUsage); |
0 | 615 } |
616 | |
617 TraceMemoryManagerStats::~TraceMemoryManagerStats() { | |
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618 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime, |
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619 _recordGCEndTime, _countCollection, _cause); |
0 | 620 } |
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621 |