author | stuefe |
Sat, 16 Jun 2018 07:05:09 +0200 | |
changeset 50600 | 8e17fffa0a4b |
parent 50217 | 843fc56f4686 |
child 50635 | 5d3c5af82654 |
child 56625 | 380796df44a9 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "gc/shared/collectedHeap.hpp" |
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#include "logging/logConfiguration.hpp" |
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#include "memory/heap.hpp" |
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#include "memory/memRegion.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "runtime/globals.hpp" |
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#include "runtime/handles.inline.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "services/classLoadingService.hpp" |
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#include "services/lowMemoryDetector.hpp" |
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#include "services/management.hpp" |
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#include "services/memoryManager.hpp" |
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#include "services/memoryPool.hpp" |
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#include "services/memoryService.hpp" |
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#include "utilities/growableArray.hpp" |
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#include "utilities/macros.hpp" |
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GrowableArray<MemoryPool*>* MemoryService::_pools_list = |
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new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true); |
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GrowableArray<MemoryManager*>* MemoryService::_managers_list = |
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new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true); |
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MemoryManager* MemoryService::_code_cache_manager = NULL; |
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GrowableArray<MemoryPool*>* MemoryService::_code_heap_pools = |
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new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_code_heap_pools_size, true); |
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MemoryPool* MemoryService::_metaspace_pool = NULL; |
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MemoryPool* MemoryService::_compressed_class_pool = NULL; |
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class GcThreadCountClosure: public ThreadClosure { |
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private: |
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int _count; |
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public: |
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GcThreadCountClosure() : _count(0) {}; |
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void do_thread(Thread* thread); |
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int count() { return _count; } |
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}; |
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void GcThreadCountClosure::do_thread(Thread* thread) { |
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_count++; |
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} |
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void MemoryService::set_universe_heap(CollectedHeap* heap) { |
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ResourceMark rm; // For internal allocations in GrowableArray. |
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GrowableArray<MemoryPool*> gc_mem_pools = heap->memory_pools(); |
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_pools_list->appendAll(&gc_mem_pools); |
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// set the GC thread count |
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GcThreadCountClosure gctcc; |
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heap->gc_threads_do(&gctcc); |
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int count = gctcc.count(); |
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GrowableArray<GCMemoryManager*> gc_memory_managers = heap->memory_managers(); |
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for (int i = 0; i < gc_memory_managers.length(); i++) { |
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GCMemoryManager* gc_manager = gc_memory_managers.at(i); |
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if (count > 0) { |
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gc_manager->set_num_gc_threads(count); |
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} |
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gc_manager->initialize_gc_stat_info(); |
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_managers_list->append(gc_manager); |
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} |
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} |
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void MemoryService::add_code_heap_memory_pool(CodeHeap* heap, const char* name) { |
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// Create new memory pool for this heap |
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MemoryPool* code_heap_pool = new CodeHeapPool(heap, name, true /* support_usage_threshold */); |
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// Append to lists |
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_code_heap_pools->append(code_heap_pool); |
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_pools_list->append(code_heap_pool); |
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if (_code_cache_manager == NULL) { |
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// Create CodeCache memory manager |
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_code_cache_manager = MemoryManager::get_code_cache_memory_manager(); |
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_managers_list->append(_code_cache_manager); |
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} |
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_code_cache_manager->add_pool(code_heap_pool); |
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} |
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void MemoryService::add_metaspace_memory_pools() { |
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MemoryManager* mgr = MemoryManager::get_metaspace_memory_manager(); |
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_metaspace_pool = new MetaspacePool(); |
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mgr->add_pool(_metaspace_pool); |
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_pools_list->append(_metaspace_pool); |
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if (UseCompressedClassPointers) { |
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_compressed_class_pool = new CompressedKlassSpacePool(); |
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mgr->add_pool(_compressed_class_pool); |
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_pools_list->append(_compressed_class_pool); |
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} |
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_managers_list->append(mgr); |
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} |
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MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) { |
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for (int i = 0; i < _managers_list->length(); i++) { |
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MemoryManager* mgr = _managers_list->at(i); |
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if (mgr->is_manager(mh)) { |
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return mgr; |
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} |
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} |
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return NULL; |
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} |
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MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) { |
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for (int i = 0; i < _pools_list->length(); i++) { |
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MemoryPool* pool = _pools_list->at(i); |
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if (pool->is_pool(ph)) { |
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return pool; |
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} |
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} |
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return NULL; |
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} |
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void MemoryService::track_memory_usage() { |
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// Track the peak memory usage |
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for (int i = 0; i < _pools_list->length(); i++) { |
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MemoryPool* pool = _pools_list->at(i); |
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pool->record_peak_memory_usage(); |
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} |
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// Detect low memory |
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LowMemoryDetector::detect_low_memory(); |
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} |
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void MemoryService::track_memory_pool_usage(MemoryPool* pool) { |
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// Track the peak memory usage |
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pool->record_peak_memory_usage(); |
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// Detect low memory |
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if (LowMemoryDetector::is_enabled(pool)) { |
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LowMemoryDetector::detect_low_memory(pool); |
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} |
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} |
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void MemoryService::gc_begin(GCMemoryManager* manager, bool recordGCBeginTime, |
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bool recordAccumulatedGCTime, |
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bool recordPreGCUsage, bool recordPeakUsage) { |
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manager->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime); |
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// Track the peak memory usage when GC begins |
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if (recordPeakUsage) { |
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for (int i = 0; i < _pools_list->length(); i++) { |
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MemoryPool* pool = _pools_list->at(i); |
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pool->record_peak_memory_usage(); |
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} |
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} |
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} |
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void MemoryService::gc_end(GCMemoryManager* manager, bool recordPostGCUsage, |
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bool recordAccumulatedGCTime, |
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bool recordGCEndTime, bool countCollection, |
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GCCause::Cause cause) { |
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// register the GC end statistics and memory usage |
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manager->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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countCollection, cause); |
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} |
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void MemoryService::oops_do(OopClosure* f) { |
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int i; |
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for (i = 0; i < _pools_list->length(); i++) { |
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MemoryPool* pool = _pools_list->at(i); |
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pool->oops_do(f); |
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} |
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for (i = 0; i < _managers_list->length(); i++) { |
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MemoryManager* mgr = _managers_list->at(i); |
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mgr->oops_do(f); |
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} |
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} |
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bool MemoryService::set_verbose(bool verbose) { |
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MutexLocker m(Management_lock); |
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// verbose will be set to the previous value |
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if (verbose) { |
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LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(gc)); |
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} else { |
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LogConfiguration::configure_stdout(LogLevel::Off, true, LOG_TAGS(gc)); |
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} |
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ClassLoadingService::reset_trace_class_unloading(); |
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return verbose; |
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} |
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Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) { |
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InstanceKlass* ik = Management::java_lang_management_MemoryUsage_klass(CHECK_NH); |
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JavaCallArguments args(10); |
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args.push_long(usage.init_size_as_jlong()); |
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args.push_long(usage.used_as_jlong()); |
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args.push_long(usage.committed_as_jlong()); |
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args.push_long(usage.max_size_as_jlong()); |
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return JavaCalls::construct_new_instance( |
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ik, |
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vmSymbols::long_long_long_long_void_signature(), |
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&args, |
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CHECK_NH); |
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} |
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TraceMemoryManagerStats::TraceMemoryManagerStats(GCMemoryManager* gc_memory_manager, |
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GCCause::Cause cause, |
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bool recordGCBeginTime, |
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bool recordPreGCUsage, |
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bool recordPeakUsage, |
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bool recordPostGCUsage, |
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bool recordAccumulatedGCTime, |
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bool recordGCEndTime, |
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bool countCollection) { |
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initialize(gc_memory_manager, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage, |
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recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime, |
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countCollection); |
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} |
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|
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// for a subclass to create then initialize an instance before invoking |
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// the MemoryService |
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void TraceMemoryManagerStats::initialize(GCMemoryManager* gc_memory_manager, |
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GCCause::Cause cause, |
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bool recordGCBeginTime, |
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bool recordPreGCUsage, |
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bool recordPeakUsage, |
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bool recordPostGCUsage, |
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bool recordAccumulatedGCTime, |
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bool recordGCEndTime, |
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bool countCollection) { |
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_gc_memory_manager = gc_memory_manager; |
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_recordGCBeginTime = recordGCBeginTime; |
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_recordPreGCUsage = recordPreGCUsage; |
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_recordPeakUsage = recordPeakUsage; |
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_recordPostGCUsage = recordPostGCUsage; |
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_recordAccumulatedGCTime = recordAccumulatedGCTime; |
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_recordGCEndTime = recordGCEndTime; |
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_countCollection = countCollection; |
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_cause = cause; |
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|
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MemoryService::gc_begin(_gc_memory_manager, _recordGCBeginTime, _recordAccumulatedGCTime, |
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_recordPreGCUsage, _recordPeakUsage); |
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} |
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||
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TraceMemoryManagerStats::~TraceMemoryManagerStats() { |
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MemoryService::gc_end(_gc_memory_manager, _recordPostGCUsage, _recordAccumulatedGCTime, |
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_recordGCEndTime, _countCollection, _cause); |
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} |