duke@435: /*
coleenp@4037:  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "classfile/systemDictionary.hpp"
stefank@2314: #include "classfile/vmSymbols.hpp"
stefank@2314: #include "gc_implementation/shared/mutableSpace.hpp"
stefank@2314: #include "memory/collectorPolicy.hpp"
stefank@2314: #include "memory/defNewGeneration.hpp"
stefank@2314: #include "memory/genCollectedHeap.hpp"
stefank@2314: #include "memory/generation.hpp"
stefank@2314: #include "memory/generationSpec.hpp"
stefank@2314: #include "memory/heap.hpp"
stefank@2314: #include "memory/memRegion.hpp"
stefank@2314: #include "memory/tenuredGeneration.hpp"
stefank@2314: #include "oops/oop.inline.hpp"
stefank@2314: #include "runtime/javaCalls.hpp"
stefank@2314: #include "services/classLoadingService.hpp"
stefank@2314: #include "services/lowMemoryDetector.hpp"
stefank@2314: #include "services/management.hpp"
stefank@2314: #include "services/memoryManager.hpp"
stefank@2314: #include "services/memoryPool.hpp"
stefank@2314: #include "services/memoryService.hpp"
stefank@2314: #include "utilities/growableArray.hpp"
jprovino@4542: #include "utilities/macros.hpp"
jprovino@4542: #if INCLUDE_ALL_GCS
stefank@2314: #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
stefank@2314: #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
stefank@2314: #include "gc_implementation/parNew/parNewGeneration.hpp"
stefank@2314: #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
stefank@2314: #include "gc_implementation/parallelScavenge/psOldGen.hpp"
stefank@2314: #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
stefank@2314: #include "services/g1MemoryPool.hpp"
stefank@2314: #include "services/psMemoryPool.hpp"
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435: GrowableArray<MemoryPool*>* MemoryService::_pools_list =
zgu@3900:   new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
duke@435: GrowableArray<MemoryManager*>* MemoryService::_managers_list =
zgu@3900:   new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
duke@435: 
ehelin@4825: GCMemoryManager* MemoryService::_minor_gc_manager     = NULL;
ehelin@4825: GCMemoryManager* MemoryService::_major_gc_manager     = NULL;
ehelin@4825: MemoryPool*      MemoryService::_code_heap_pool       = NULL;
ehelin@4825: MemoryPool*      MemoryService::_metaspace_pool       = NULL;
ehelin@4825: MemoryPool*      MemoryService::_class_metaspace_pool = NULL;
duke@435: 
duke@435: class GcThreadCountClosure: public ThreadClosure {
duke@435:  private:
duke@435:   int _count;
duke@435:  public:
duke@435:   GcThreadCountClosure() : _count(0) {};
duke@435:   void do_thread(Thread* thread);
duke@435:   int count() { return _count; }
duke@435: };
duke@435: 
duke@435: void GcThreadCountClosure::do_thread(Thread* thread) {
duke@435:   _count++;
duke@435: }
duke@435: 
duke@435: void MemoryService::set_universe_heap(CollectedHeap* heap) {
duke@435:   CollectedHeap::Name kind = heap->kind();
duke@435:   switch (kind) {
duke@435:     case CollectedHeap::GenCollectedHeap : {
duke@435:       add_gen_collected_heap_info(GenCollectedHeap::heap());
duke@435:       break;
duke@435:     }
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     case CollectedHeap::ParallelScavengeHeap : {
duke@435:       add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());
duke@435:       break;
duke@435:     }
ysr@777:     case CollectedHeap::G1CollectedHeap : {
tonyp@1524:       add_g1_heap_info(G1CollectedHeap::heap());
tonyp@1524:       break;
ysr@777:     }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435:     default: {
ysr@777:       guarantee(false, "Unrecognized kind of heap");
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   // set the GC thread count
duke@435:   GcThreadCountClosure gctcc;
duke@435:   heap->gc_threads_do(&gctcc);
duke@435:   int count = gctcc.count();
duke@435:   if (count > 0) {
duke@435:     _minor_gc_manager->set_num_gc_threads(count);
duke@435:     _major_gc_manager->set_num_gc_threads(count);
duke@435:   }
duke@435: 
duke@435:   // All memory pools and memory managers are initialized.
duke@435:   //
duke@435:   _minor_gc_manager->initialize_gc_stat_info();
duke@435:   _major_gc_manager->initialize_gc_stat_info();
duke@435: }
duke@435: 
duke@435: // Add memory pools for GenCollectedHeap
duke@435: // This function currently only supports two generations collected heap.
duke@435: // The collector for GenCollectedHeap will have two memory managers.
duke@435: void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {
duke@435:   CollectorPolicy* policy = heap->collector_policy();
duke@435: 
duke@435:   assert(policy->is_two_generation_policy(), "Only support two generations");
duke@435:   guarantee(heap->n_gens() == 2, "Only support two-generation heap");
duke@435: 
duke@435:   TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy();
duke@435:   if (two_gen_policy != NULL) {
duke@435:     GenerationSpec** specs = two_gen_policy->generations();
duke@435:     Generation::Name kind = specs[0]->name();
duke@435:     switch (kind) {
duke@435:       case Generation::DefNew:
duke@435:         _minor_gc_manager = MemoryManager::get_copy_memory_manager();
duke@435:         break;
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:       case Generation::ParNew:
duke@435:       case Generation::ASParNew:
duke@435:         _minor_gc_manager = MemoryManager::get_parnew_memory_manager();
duke@435:         break;
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435:       default:
duke@435:         guarantee(false, "Unrecognized generation spec");
duke@435:         break;
duke@435:     }
duke@435:     if (policy->is_mark_sweep_policy()) {
duke@435:       _major_gc_manager = MemoryManager::get_msc_memory_manager();
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     } else if (policy->is_concurrent_mark_sweep_policy()) {
duke@435:       _major_gc_manager = MemoryManager::get_cms_memory_manager();
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435:     } else {
duke@435:       guarantee(false, "Unknown two-gen policy");
duke@435:     }
duke@435:   } else {
duke@435:     guarantee(false, "Non two-gen policy");
duke@435:   }
duke@435:   _managers_list->append(_minor_gc_manager);
duke@435:   _managers_list->append(_major_gc_manager);
duke@435: 
duke@435:   add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager);
duke@435:   add_generation_memory_pool(heap->get_gen(major), _major_gc_manager);
duke@435: }
duke@435: 
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435: // Add memory pools for ParallelScavengeHeap
duke@435: // This function currently only supports two generations collected heap.
duke@435: // The collector for ParallelScavengeHeap will have two memory managers.
duke@435: void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {
duke@435:   // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.
duke@435:   _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();
duke@435:   _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();
duke@435:   _managers_list->append(_minor_gc_manager);
duke@435:   _managers_list->append(_major_gc_manager);
duke@435: 
duke@435:   add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);
duke@435:   add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);
duke@435: }
tonyp@1524: 
tonyp@1524: void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {
tonyp@1524:   assert(UseG1GC, "sanity");
tonyp@1524: 
tonyp@1524:   _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();
tonyp@1524:   _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();
tonyp@1524:   _managers_list->append(_minor_gc_manager);
tonyp@1524:   _managers_list->append(_major_gc_manager);
tonyp@1524: 
tonyp@1524:   add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
tonyp@1524:   add_g1OldGen_memory_pool(g1h, _major_gc_manager);
tonyp@1524: }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435: MemoryPool* MemoryService::add_gen(Generation* gen,
duke@435:                                    const char* name,
duke@435:                                    bool is_heap,
duke@435:                                    bool support_usage_threshold) {
duke@435: 
duke@435:   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
duke@435:   GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);
duke@435:   _pools_list->append(pool);
duke@435:   return (MemoryPool*) pool;
duke@435: }
duke@435: 
duke@435: MemoryPool* MemoryService::add_space(ContiguousSpace* space,
duke@435:                                      const char* name,
duke@435:                                      bool is_heap,
duke@435:                                      size_t max_size,
duke@435:                                      bool support_usage_threshold) {
duke@435:   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
duke@435:   ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);
duke@435: 
duke@435:   _pools_list->append(pool);
duke@435:   return (MemoryPool*) pool;
duke@435: }
duke@435: 
duke@435: MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen,
duke@435:                                                const char* name,
duke@435:                                                bool is_heap,
duke@435:                                                size_t max_size,
duke@435:                                                bool support_usage_threshold) {
duke@435:   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
duke@435:   SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold);
duke@435: 
duke@435:   _pools_list->append(pool);
duke@435:   return (MemoryPool*) pool;
duke@435: }
duke@435: 
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435: MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,
duke@435:                                          const char* name,
duke@435:                                          bool is_heap,
duke@435:                                          size_t max_size,
duke@435:                                          bool support_usage_threshold) {
duke@435:   MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
duke@435:   CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);
duke@435:   _pools_list->append(pool);
duke@435:   return (MemoryPool*) pool;
duke@435: }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435: // Add memory pool(s) for one generation
duke@435: void MemoryService::add_generation_memory_pool(Generation* gen,
duke@435:                                                MemoryManager* major_mgr,
duke@435:                                                MemoryManager* minor_mgr) {
morris@4761:   guarantee(gen != NULL, "No generation for memory pool");
duke@435:   Generation::Name kind = gen->kind();
duke@435:   int index = _pools_list->length();
duke@435: 
duke@435:   switch (kind) {
duke@435:     case Generation::DefNew: {
duke@435:       assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
duke@435:       DefNewGeneration* young_gen = (DefNewGeneration*) gen;
duke@435:       // Add a memory pool for each space and young gen doesn't
duke@435:       // support low memory detection as it is expected to get filled up.
duke@435:       MemoryPool* eden = add_space(young_gen->eden(),
duke@435:                                    "Eden Space",
duke@435:                                    true, /* is_heap */
duke@435:                                    young_gen->max_eden_size(),
duke@435:                                    false /* support_usage_threshold */);
duke@435:       MemoryPool* survivor = add_survivor_spaces(young_gen,
duke@435:                                                  "Survivor Space",
duke@435:                                                  true, /* is_heap */
duke@435:                                                  young_gen->max_survivor_size(),
duke@435:                                                  false /* support_usage_threshold */);
duke@435:       break;
duke@435:     }
duke@435: 
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     case Generation::ParNew:
duke@435:     case Generation::ASParNew:
duke@435:     {
duke@435:       assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
duke@435:       // Add a memory pool for each space and young gen doesn't
duke@435:       // support low memory detection as it is expected to get filled up.
duke@435:       ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;
duke@435:       MemoryPool* eden = add_space(parnew_gen->eden(),
duke@435:                                    "Par Eden Space",
duke@435:                                    true /* is_heap */,
duke@435:                                    parnew_gen->max_eden_size(),
duke@435:                                    false /* support_usage_threshold */);
duke@435:       MemoryPool* survivor = add_survivor_spaces(parnew_gen,
duke@435:                                                  "Par Survivor Space",
duke@435:                                                  true, /* is_heap */
duke@435:                                                  parnew_gen->max_survivor_size(),
duke@435:                                                  false /* support_usage_threshold */);
duke@435: 
duke@435:       break;
duke@435:     }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435:     case Generation::MarkSweepCompact: {
duke@435:       assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
duke@435:       add_gen(gen,
duke@435:               "Tenured Gen",
duke@435:               true, /* is_heap */
duke@435:               true  /* support_usage_threshold */);
duke@435:       break;
duke@435:     }
duke@435: 
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     case Generation::ConcurrentMarkSweep:
duke@435:     case Generation::ASConcurrentMarkSweep:
duke@435:     {
duke@435:       assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
duke@435:       ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen;
duke@435:       MemoryPool* pool = add_cms_space(cms->cmsSpace(),
duke@435:                                        "CMS Old Gen",
duke@435:                                        true, /* is_heap */
duke@435:                                        cms->reserved().byte_size(),
duke@435:                                        true  /* support_usage_threshold */);
duke@435:       break;
duke@435:     }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435:     default:
duke@435:       assert(false, "should not reach here");
duke@435:       // no memory pool added for others
duke@435:       break;
duke@435:   }
duke@435: 
duke@435:   assert(major_mgr != NULL, "Should have at least one manager");
duke@435:   // Link managers and the memory pools together
duke@435:   for (int i = index; i < _pools_list->length(); i++) {
duke@435:     MemoryPool* pool = _pools_list->at(i);
duke@435:     major_mgr->add_pool(pool);
duke@435:     if (minor_mgr != NULL) {
duke@435:       minor_mgr->add_pool(pool);
duke@435:     }
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435: void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) {
duke@435:   assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
duke@435: 
duke@435:   // Add a memory pool for each space and young gen doesn't
duke@435:   // support low memory detection as it is expected to get filled up.
duke@435:   EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen,
duke@435:                                                         gen->eden_space(),
duke@435:                                                         "PS Eden Space",
duke@435:                                                         MemoryPool::Heap,
duke@435:                                                         false /* support_usage_threshold */);
duke@435: 
duke@435:   SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen,
duke@435:                                                                     "PS Survivor Space",
duke@435:                                                                     MemoryPool::Heap,
duke@435:                                                                     false /* support_usage_threshold */);
duke@435: 
duke@435:   major_mgr->add_pool(eden);
duke@435:   major_mgr->add_pool(survivor);
duke@435:   minor_mgr->add_pool(eden);
duke@435:   minor_mgr->add_pool(survivor);
duke@435:   _pools_list->append(eden);
duke@435:   _pools_list->append(survivor);
duke@435: }
duke@435: 
duke@435: void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) {
duke@435:   PSGenerationPool* old_gen = new PSGenerationPool(gen,
duke@435:                                                    "PS Old Gen",
duke@435:                                                    MemoryPool::Heap,
duke@435:                                                    true /* support_usage_threshold */);
duke@435:   mgr->add_pool(old_gen);
duke@435:   _pools_list->append(old_gen);
duke@435: }
duke@435: 
tonyp@1524: void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
tonyp@1524:                                                MemoryManager* major_mgr,
tonyp@1524:                                                MemoryManager* minor_mgr) {
tonyp@1524:   assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
tonyp@1524: 
tonyp@1524:   G1EdenPool* eden = new G1EdenPool(g1h);
tonyp@1524:   G1SurvivorPool* survivor = new G1SurvivorPool(g1h);
tonyp@1524: 
tonyp@1524:   major_mgr->add_pool(eden);
tonyp@1524:   major_mgr->add_pool(survivor);
tonyp@1524:   minor_mgr->add_pool(eden);
tonyp@1524:   minor_mgr->add_pool(survivor);
tonyp@1524:   _pools_list->append(eden);
tonyp@1524:   _pools_list->append(survivor);
tonyp@1524: }
tonyp@1524: 
tonyp@1524: void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
tonyp@1524:                                              MemoryManager* mgr) {
tonyp@1524:   assert(mgr != NULL, "should have one manager");
tonyp@1524: 
tonyp@1524:   G1OldGenPool* old_gen = new G1OldGenPool(g1h);
tonyp@1524:   mgr->add_pool(old_gen);
tonyp@1524:   _pools_list->append(old_gen);
tonyp@1524: }
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435: 
duke@435: void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) {
duke@435:   _code_heap_pool = new CodeHeapPool(heap,
duke@435:                                      "Code Cache",
duke@435:                                      true /* support_usage_threshold */);
duke@435:   MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager();
duke@435:   mgr->add_pool(_code_heap_pool);
duke@435: 
duke@435:   _pools_list->append(_code_heap_pool);
duke@435:   _managers_list->append(mgr);
duke@435: }
duke@435: 
ehelin@4825: void MemoryService::add_metaspace_memory_pools() {
ehelin@4825:   _metaspace_pool = new MetaspacePool();
ehelin@4825:   _class_metaspace_pool = new ClassMetaspacePool();
ehelin@4825: 
ehelin@4825:   MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager();
ehelin@4825:   mgr->add_pool(_metaspace_pool);
ehelin@4825:   mgr->add_pool(_class_metaspace_pool);
ehelin@4825: 
ehelin@4825:   _pools_list->append(_metaspace_pool);
ehelin@4825:   _pools_list->append(_class_metaspace_pool);
ehelin@4825:   _managers_list->append(mgr);
ehelin@4825: }
ehelin@4825: 
duke@435: MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) {
duke@435:   for (int i = 0; i < _managers_list->length(); i++) {
duke@435:     MemoryManager* mgr = _managers_list->at(i);
duke@435:     if (mgr->is_manager(mh)) {
duke@435:       return mgr;
duke@435:     }
duke@435:   }
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) {
duke@435:   for (int i = 0; i < _pools_list->length(); i++) {
duke@435:     MemoryPool* pool = _pools_list->at(i);
duke@435:     if (pool->is_pool(ph)) {
duke@435:       return pool;
duke@435:     }
duke@435:   }
duke@435:   return NULL;
duke@435: }
duke@435: 
duke@435: void MemoryService::track_memory_usage() {
duke@435:   // Track the peak memory usage
duke@435:   for (int i = 0; i < _pools_list->length(); i++) {
duke@435:     MemoryPool* pool = _pools_list->at(i);
duke@435:     pool->record_peak_memory_usage();
duke@435:   }
duke@435: 
duke@435:   // Detect low memory
duke@435:   LowMemoryDetector::detect_low_memory();
duke@435: }
duke@435: 
duke@435: void MemoryService::track_memory_pool_usage(MemoryPool* pool) {
duke@435:   // Track the peak memory usage
duke@435:   pool->record_peak_memory_usage();
duke@435: 
duke@435:   // Detect low memory
duke@435:   if (LowMemoryDetector::is_enabled(pool)) {
duke@435:     LowMemoryDetector::detect_low_memory(pool);
duke@435:   }
duke@435: }
duke@435: 
kevinw@2058: void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime,
kevinw@2058:                              bool recordAccumulatedGCTime,
kevinw@2058:                              bool recordPreGCUsage, bool recordPeakUsage) {
kevinw@2058: 
duke@435:   GCMemoryManager* mgr;
duke@435:   if (fullGC) {
duke@435:     mgr = _major_gc_manager;
duke@435:   } else {
duke@435:     mgr = _minor_gc_manager;
duke@435:   }
duke@435:   assert(mgr->is_gc_memory_manager(), "Sanity check");
kevinw@2058:   mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime);
duke@435: 
duke@435:   // Track the peak memory usage when GC begins
kevinw@2058:   if (recordPeakUsage) {
kevinw@2058:     for (int i = 0; i < _pools_list->length(); i++) {
kevinw@2058:       MemoryPool* pool = _pools_list->at(i);
kevinw@2058:       pool->record_peak_memory_usage();
kevinw@2058:     }
duke@435:   }
duke@435: }
duke@435: 
kevinw@2058: void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage,
kevinw@2058:                            bool recordAccumulatedGCTime,
fparain@2888:                            bool recordGCEndTime, bool countCollection,
fparain@2888:                            GCCause::Cause cause) {
kevinw@2058: 
duke@435:   GCMemoryManager* mgr;
duke@435:   if (fullGC) {
duke@435:     mgr = (GCMemoryManager*) _major_gc_manager;
duke@435:   } else {
duke@435:     mgr = (GCMemoryManager*) _minor_gc_manager;
duke@435:   }
duke@435:   assert(mgr->is_gc_memory_manager(), "Sanity check");
duke@435: 
duke@435:   // register the GC end statistics and memory usage
kevinw@2058:   mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
fparain@2888:               countCollection, cause);
duke@435: }
duke@435: 
duke@435: void MemoryService::oops_do(OopClosure* f) {
duke@435:   int i;
duke@435: 
duke@435:   for (i = 0; i < _pools_list->length(); i++) {
duke@435:     MemoryPool* pool = _pools_list->at(i);
duke@435:     pool->oops_do(f);
duke@435:   }
duke@435:   for (i = 0; i < _managers_list->length(); i++) {
duke@435:     MemoryManager* mgr = _managers_list->at(i);
duke@435:     mgr->oops_do(f);
duke@435:   }
duke@435: }
duke@435: 
duke@435: bool MemoryService::set_verbose(bool verbose) {
duke@435:   MutexLocker m(Management_lock);
duke@435:   // verbose will be set to the previous value
duke@435:   bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT);
duke@435:   assert(succeed, "Setting PrintGC flag fails");
duke@435:   ClassLoadingService::reset_trace_class_unloading();
duke@435: 
duke@435:   return verbose;
duke@435: }
duke@435: 
duke@435: Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) {
coleenp@4037:   Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH);
duke@435:   instanceKlassHandle ik(THREAD, k);
duke@435: 
duke@435:   instanceHandle obj = ik->allocate_instance_handle(CHECK_NH);
duke@435: 
duke@435:   JavaValue result(T_VOID);
duke@435:   JavaCallArguments args(10);
duke@435:   args.push_oop(obj);                         // receiver
duke@435:   args.push_long(usage.init_size_as_jlong()); // Argument 1
duke@435:   args.push_long(usage.used_as_jlong());      // Argument 2
duke@435:   args.push_long(usage.committed_as_jlong()); // Argument 3
duke@435:   args.push_long(usage.max_size_as_jlong());  // Argument 4
duke@435: 
duke@435:   JavaCalls::call_special(&result,
duke@435:                           ik,
coleenp@2497:                           vmSymbols::object_initializer_name(),
coleenp@2497:                           vmSymbols::long_long_long_long_void_signature(),
duke@435:                           &args,
duke@435:                           CHECK_NH);
duke@435:   return obj;
duke@435: }
duke@435: //
kevinw@2058: // GC manager type depends on the type of Generation. Depending on the space
kevinw@2058: // availablity and vm options the gc uses major gc manager or minor gc
duke@435: // manager or both. The type of gc manager depends on the generation kind.
kevinw@2058: // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor
kevinw@2058: // gc manager (so _fullGC is set to false ) and for other generation kinds
kevinw@2058: // doing mark-sweep-compact uses major gc manager (so _fullGC is set
duke@435: // to true).
fparain@2888: TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) {
duke@435:   switch (kind) {
duke@435:     case Generation::DefNew:
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     case Generation::ParNew:
duke@435:     case Generation::ASParNew:
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435:       _fullGC=false;
duke@435:       break;
duke@435:     case Generation::MarkSweepCompact:
jprovino@4542: #if INCLUDE_ALL_GCS
duke@435:     case Generation::ConcurrentMarkSweep:
duke@435:     case Generation::ASConcurrentMarkSweep:
jprovino@4542: #endif // INCLUDE_ALL_GCS
duke@435:       _fullGC=true;
duke@435:       break;
duke@435:     default:
duke@435:       assert(false, "Unrecognized gc generation kind.");
duke@435:   }
kevinw@2058:   // this has to be called in a stop the world pause and represent
kevinw@2058:   // an entire gc pause, start to finish:
fparain@2888:   initialize(_fullGC, cause,true, true, true, true, true, true, true);
duke@435: }
kevinw@2058: TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC,
fparain@2888:                                                  GCCause::Cause cause,
kevinw@2058:                                                  bool recordGCBeginTime,
kevinw@2058:                                                  bool recordPreGCUsage,
kevinw@2058:                                                  bool recordPeakUsage,
kevinw@2058:                                                  bool recordPostGCUsage,
kevinw@2058:                                                  bool recordAccumulatedGCTime,
kevinw@2058:                                                  bool recordGCEndTime,
kevinw@2058:                                                  bool countCollection) {
fparain@2888:     initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage,
kevinw@2058:              recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
kevinw@2058:              countCollection);
kevinw@2058: }
kevinw@2058: 
kevinw@2058: // for a subclass to create then initialize an instance before invoking
kevinw@2058: // the MemoryService
kevinw@2058: void TraceMemoryManagerStats::initialize(bool fullGC,
fparain@2888:                                          GCCause::Cause cause,
kevinw@2058:                                          bool recordGCBeginTime,
kevinw@2058:                                          bool recordPreGCUsage,
kevinw@2058:                                          bool recordPeakUsage,
kevinw@2058:                                          bool recordPostGCUsage,
kevinw@2058:                                          bool recordAccumulatedGCTime,
kevinw@2058:                                          bool recordGCEndTime,
kevinw@2058:                                          bool countCollection) {
duke@435:   _fullGC = fullGC;
kevinw@2058:   _recordGCBeginTime = recordGCBeginTime;
kevinw@2058:   _recordPreGCUsage = recordPreGCUsage;
kevinw@2058:   _recordPeakUsage = recordPeakUsage;
kevinw@2058:   _recordPostGCUsage = recordPostGCUsage;
kevinw@2058:   _recordAccumulatedGCTime = recordAccumulatedGCTime;
kevinw@2058:   _recordGCEndTime = recordGCEndTime;
kevinw@2058:   _countCollection = countCollection;
fparain@2888:   _cause = cause;
kevinw@2058: 
kevinw@2058:   MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime,
kevinw@2058:                           _recordPreGCUsage, _recordPeakUsage);
duke@435: }
duke@435: 
duke@435: TraceMemoryManagerStats::~TraceMemoryManagerStats() {
kevinw@2058:   MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime,
fparain@2888:                         _recordGCEndTime, _countCollection, _cause);
duke@435: }
kevinw@2058: