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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc/parallel/mutableSpace.hpp"
29 #include "gc/serial/defNewGeneration.hpp"
30 #include "gc/serial/tenuredGeneration.hpp"
31 #include "gc/shared/collectorPolicy.hpp"
32 #include "gc/shared/genCollectedHeap.hpp"
33 #include "gc/shared/generation.hpp"
34 #include "gc/shared/generationSpec.hpp"
35 #include "logging/logConfiguration.hpp"
36 #include "memory/heap.hpp"
37 #include "memory/memRegion.hpp"
38 #include "oops/oop.inline.hpp"
39 #include "runtime/globals.hpp"
40 #include "runtime/javaCalls.hpp"
41 #include "services/classLoadingService.hpp"
42 #include "services/lowMemoryDetector.hpp"
43 #include "services/management.hpp"
44 #include "services/memoryManager.hpp"
45 #include "services/memoryPool.hpp"
46 #include "services/memoryService.hpp"
47 #include "utilities/growableArray.hpp"
48 #include "utilities/macros.hpp"
49 #if INCLUDE_ALL_GCS
50 #include "gc/cms/concurrentMarkSweepGeneration.hpp"
51 #include "gc/cms/parNewGeneration.hpp"
52 #include "gc/g1/g1CollectedHeap.inline.hpp"
53 #include "gc/parallel/parallelScavengeHeap.hpp"
54 #include "gc/parallel/psOldGen.hpp"
55 #include "gc/parallel/psYoungGen.hpp"
56 #include "services/g1MemoryPool.hpp"
57 #include "services/psMemoryPool.hpp"
58 #endif // INCLUDE_ALL_GCS
59
60 GrowableArray<MemoryPool*>* MemoryService::_pools_list =
61 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
62 GrowableArray<MemoryManager*>* MemoryService::_managers_list =
63 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
64
65 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;
66 GCMemoryManager* MemoryService::_major_gc_manager = NULL;
67 MemoryManager* MemoryService::_code_cache_manager = NULL;
68 GrowableArray<MemoryPool*>* MemoryService::_code_heap_pools =
69 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_code_heap_pools_size, true);
70 MemoryPool* MemoryService::_metaspace_pool = NULL;
71 MemoryPool* MemoryService::_compressed_class_pool = NULL;
72
73 class GcThreadCountClosure: public ThreadClosure {
74 private:
75 int _count;
76 public:
77 GcThreadCountClosure() : _count(0) {};
78 void do_thread(Thread* thread);
79 int count() { return _count; }
80 };
81
82 void GcThreadCountClosure::do_thread(Thread* thread) {
83 _count++;
84 }
85
86 void MemoryService::set_universe_heap(CollectedHeap* heap) {
87 CollectedHeap::Name kind = heap->kind();
88 switch (kind) {
89 case CollectedHeap::GenCollectedHeap : {
90 add_gen_collected_heap_info(GenCollectedHeap::heap());
91 break;
92 }
93 #if INCLUDE_ALL_GCS
94 case CollectedHeap::ParallelScavengeHeap : {
95 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());
96 break;
97 }
98 case CollectedHeap::G1CollectedHeap : {
99 add_g1_heap_info(G1CollectedHeap::heap());
100 break;
101 }
102 #endif // INCLUDE_ALL_GCS
103 default: {
104 guarantee(false, "Unrecognized kind of heap");
105 }
106 }
107
108 // set the GC thread count
109 GcThreadCountClosure gctcc;
110 heap->gc_threads_do(&gctcc);
111 int count = gctcc.count();
112 if (count > 0) {
113 _minor_gc_manager->set_num_gc_threads(count);
114 _major_gc_manager->set_num_gc_threads(count);
115 }
116
117 // All memory pools and memory managers are initialized.
118 //
119 _minor_gc_manager->initialize_gc_stat_info();
120 _major_gc_manager->initialize_gc_stat_info();
121 }
122
123 // Add memory pools for GenCollectedHeap
124 // This function currently only supports two generations collected heap.
125 // The collector for GenCollectedHeap will have two memory managers.
126 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {
127 CollectorPolicy* policy = heap->collector_policy();
128
129 assert(policy->is_generation_policy(), "Only support two generations");
130 GenCollectorPolicy* gen_policy = policy->as_generation_policy();
131 if (gen_policy != NULL) {
132 Generation::Name kind = gen_policy->young_gen_spec()->name();
133 switch (kind) {
134 case Generation::DefNew:
135 _minor_gc_manager = MemoryManager::get_copy_memory_manager();
136 break;
137 #if INCLUDE_ALL_GCS
138 case Generation::ParNew:
139 _minor_gc_manager = MemoryManager::get_parnew_memory_manager();
140 break;
141 #endif // INCLUDE_ALL_GCS
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 #if INCLUDE_ALL_GCS
149 } else if (policy->is_concurrent_mark_sweep_policy()) {
150 _major_gc_manager = MemoryManager::get_cms_memory_manager();
151 #endif // INCLUDE_ALL_GCS
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->young_gen(), _major_gc_manager, _minor_gc_manager);
162 add_generation_memory_pool(heap->old_gen(), _major_gc_manager);
163 }
164
165 #if INCLUDE_ALL_GCS
166 // Add memory pools for ParallelScavengeHeap
167 // This function currently only supports two generations collected heap.
168 // The collector for ParallelScavengeHeap will have two memory managers.
169 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {
170 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.
171 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();
172 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();
173 _managers_list->append(_minor_gc_manager);
174 _managers_list->append(_major_gc_manager);
175
176 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);
177 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);
178 }
179
180 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {
181 assert(UseG1GC, "sanity");
182
183 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();
184 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();
185 _managers_list->append(_minor_gc_manager);
186 _managers_list->append(_major_gc_manager);
187
188 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
189 add_g1OldGen_memory_pool(g1h, _major_gc_manager);
190 }
191 #endif // INCLUDE_ALL_GCS
192
193 MemoryPool* MemoryService::add_gen(Generation* gen,
194 const char* name,
195 bool is_heap,
196 bool support_usage_threshold) {
197
198 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
199 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);
200 _pools_list->append(pool);
201 return (MemoryPool*) pool;
202 }
203
204 MemoryPool* MemoryService::add_space(ContiguousSpace* space,
205 const char* name,
206 bool is_heap,
207 size_t max_size,
208 bool support_usage_threshold) {
209 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
210 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);
211
212 _pools_list->append(pool);
213 return (MemoryPool*) pool;
214 }
215
216 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* young_gen,
217 const char* name,
218 bool is_heap,
219 size_t max_size,
220 bool support_usage_threshold) {
221 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
222 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(young_gen, name, type, max_size, support_usage_threshold);
223
224 _pools_list->append(pool);
225 return (MemoryPool*) pool;
226 }
227
228 #if INCLUDE_ALL_GCS
229 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,
230 const char* name,
231 bool is_heap,
232 size_t max_size,
233 bool support_usage_threshold) {
234 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
235 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);
236 _pools_list->append(pool);
237 return (MemoryPool*) pool;
238 }
239 #endif // INCLUDE_ALL_GCS
240
241 // Add memory pool(s) for one generation
242 void MemoryService::add_generation_memory_pool(Generation* gen,
243 MemoryManager* major_mgr,
244 MemoryManager* minor_mgr) {
245 guarantee(gen != NULL, "No generation for memory pool");
246 Generation::Name kind = gen->kind();
247 int index = _pools_list->length();
248
249 switch (kind) {
250 case Generation::DefNew: {
251 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
252 DefNewGeneration* young_gen = (DefNewGeneration*) gen;
253 // Add a memory pool for each space and young gen doesn't
254 // support low memory detection as it is expected to get filled up.
255 MemoryPool* eden = add_space(young_gen->eden(),
256 "Eden Space",
257 true, /* is_heap */
258 young_gen->max_eden_size(),
259 false /* support_usage_threshold */);
260 MemoryPool* survivor = add_survivor_spaces(young_gen,
261 "Survivor Space",
262 true, /* is_heap */
263 young_gen->max_survivor_size(),
264 false /* support_usage_threshold */);
265 break;
266 }
267
268 #if INCLUDE_ALL_GCS
269 case Generation::ParNew:
270 {
271 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
272 // Add a memory pool for each space and young gen doesn't
273 // support low memory detection as it is expected to get filled up.
274 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;
275 MemoryPool* eden = add_space(parnew_gen->eden(),
276 "Par Eden Space",
277 true /* is_heap */,
278 parnew_gen->max_eden_size(),
279 false /* support_usage_threshold */);
280 MemoryPool* survivor = add_survivor_spaces(parnew_gen,
281 "Par Survivor Space",
282 true, /* is_heap */
283 parnew_gen->max_survivor_size(),
284 false /* support_usage_threshold */);
285
286 break;
287 }
288 #endif // INCLUDE_ALL_GCS
289
290 case Generation::MarkSweepCompact: {
291 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
292 add_gen(gen,
293 "Tenured Gen",
294 true, /* is_heap */
295 true /* support_usage_threshold */);
296 break;
297 }
298
299 #if INCLUDE_ALL_GCS
300 case Generation::ConcurrentMarkSweep:
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 }
311 #endif // INCLUDE_ALL_GCS
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
331 #if INCLUDE_ALL_GCS
332 void MemoryService::add_psYoung_memory_pool(PSYoungGen* young_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(young_gen,
338 young_gen->eden_space(),
339 "PS Eden Space",
340 MemoryPool::Heap,
341 false /* support_usage_threshold */);
342
343 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(young_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* old_gen, MemoryManager* mgr) {
357 PSGenerationPool* old_gen_pool = new PSGenerationPool(old_gen,
358 "PS Old Gen",
359 MemoryPool::Heap,
360 true /* support_usage_threshold */);
361 mgr->add_pool(old_gen_pool);
362 _pools_list->append(old_gen_pool);
363 }
364
365 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
366 MemoryManager* major_mgr,
367 MemoryManager* minor_mgr) {
368 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
369
370 G1EdenPool* eden = new G1EdenPool(g1h);
371 G1SurvivorPool* survivor = new G1SurvivorPool(g1h);
372
373 major_mgr->add_pool(eden);
374 major_mgr->add_pool(survivor);
375 minor_mgr->add_pool(eden);
376 minor_mgr->add_pool(survivor);
377 _pools_list->append(eden);
378 _pools_list->append(survivor);
379 }
380
381 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
382 MemoryManager* mgr) {
383 assert(mgr != NULL, "should have one manager");
384
385 G1OldGenPool* old_gen = new G1OldGenPool(g1h);
386 mgr->add_pool(old_gen);
387 _pools_list->append(old_gen);
388 }
389 #endif // INCLUDE_ALL_GCS
390
391 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap, const char* name) {
392 // Create new memory pool for this heap
393 MemoryPool* code_heap_pool = new CodeHeapPool(heap, name, true /* support_usage_threshold */);
394
395 // Append to lists
396 _code_heap_pools->append(code_heap_pool);
397 _pools_list->append(code_heap_pool);
398
399 if (_code_cache_manager == NULL) {
400 // Create CodeCache memory manager
401 _code_cache_manager = MemoryManager::get_code_cache_memory_manager();
402 _managers_list->append(_code_cache_manager);
403 }
404
405 _code_cache_manager->add_pool(code_heap_pool);
406 }
407
408 void MemoryService::add_metaspace_memory_pools() {
409 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager();
|
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc/shared/gcServicabilitySupport.hpp"
29 #include "gc/shared/generation.hpp"
30 #include "logging/logConfiguration.hpp"
31 #include "memory/heap.hpp"
32 #include "memory/memRegion.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "runtime/globals.hpp"
35 #include "runtime/javaCalls.hpp"
36 #include "services/classLoadingService.hpp"
37 #include "services/lowMemoryDetector.hpp"
38 #include "services/management.hpp"
39 #include "services/memoryManager.hpp"
40 #include "services/memoryPool.hpp"
41 #include "services/memoryService.hpp"
42 #include "utilities/growableArray.hpp"
43 #include "utilities/macros.hpp"
44
45 GrowableArray<MemoryPool*>* MemoryService::_pools_list =
46 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
47 GrowableArray<MemoryManager*>* MemoryService::_managers_list =
48 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
49
50 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;
51 GCMemoryManager* MemoryService::_major_gc_manager = NULL;
52 MemoryManager* MemoryService::_code_cache_manager = NULL;
53 GrowableArray<MemoryPool*>* MemoryService::_code_heap_pools =
54 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_code_heap_pools_size, true);
55 MemoryPool* MemoryService::_metaspace_pool = NULL;
56 MemoryPool* MemoryService::_compressed_class_pool = NULL;
57
58 class GcThreadCountClosure: public ThreadClosure {
59 private:
60 int _count;
61 public:
62 GcThreadCountClosure() : _count(0) {};
63 void do_thread(Thread* thread);
64 int count() { return _count; }
65 };
66
67 void GcThreadCountClosure::do_thread(Thread* thread) {
68 _count++;
69 }
70
71 void MemoryService::set_universe_heap(CollectedHeap* heap) {
72 _minor_gc_manager = GC::gc()->servicability_support()->create_minor_gc_manager();
73 _major_gc_manager = GC::gc()->servicability_support()->create_major_gc_manager();
74 _managers_list->append(_minor_gc_manager);
75 _managers_list->append(_major_gc_manager);
76
77 GC::gc()->servicability_support()->add_memory_pools(_pools_list,
78 _minor_gc_manager,
79 _major_gc_manager);
80
81 // set the GC thread count
82 GcThreadCountClosure gctcc;
83 heap->gc_threads_do(&gctcc);
84 int count = gctcc.count();
85 if (count > 0) {
86 _minor_gc_manager->set_num_gc_threads(count);
87 _major_gc_manager->set_num_gc_threads(count);
88 }
89
90 // All memory pools and memory managers are initialized.
91 //
92 _minor_gc_manager->initialize_gc_stat_info();
93 _major_gc_manager->initialize_gc_stat_info();
94 }
95
96 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap, const char* name) {
97 // Create new memory pool for this heap
98 MemoryPool* code_heap_pool = new CodeHeapPool(heap, name, true /* support_usage_threshold */);
99
100 // Append to lists
101 _code_heap_pools->append(code_heap_pool);
102 _pools_list->append(code_heap_pool);
103
104 if (_code_cache_manager == NULL) {
105 // Create CodeCache memory manager
106 _code_cache_manager = MemoryManager::get_code_cache_memory_manager();
107 _managers_list->append(_code_cache_manager);
108 }
109
110 _code_cache_manager->add_pool(code_heap_pool);
111 }
112
113 void MemoryService::add_metaspace_memory_pools() {
114 MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager();
|