1 /* 2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. 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 * 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 #ifndef SHARE_VM_SERVICES_MEMORYSERVICE_HPP 26 #define SHARE_VM_SERVICES_MEMORYSERVICE_HPP 27 28 #include "gc/shared/gcCause.hpp" 29 #include "logging/log.hpp" 30 #include "memory/allocation.hpp" 31 #include "runtime/handles.hpp" 32 #include "services/memoryUsage.hpp" 33 34 // Forward declaration 35 class MemoryPool; 36 class MemoryManager; 37 class GCMemoryManager; 38 class CollectedHeap; 39 class CodeHeap; 40 41 // VM Monitoring and Management Support 42 43 class MemoryService : public AllStatic { 44 private: 45 enum { 46 init_pools_list_size = 10, 47 init_managers_list_size = 5, 48 init_code_heap_pools_size = 9 49 }; 50 51 static GrowableArray<MemoryPool*>* _pools_list; 52 static GrowableArray<MemoryManager*>* _managers_list; 53 54 // memory manager and code heap pools for the CodeCache 55 static MemoryManager* _code_cache_manager; 56 static GrowableArray<MemoryPool*>* _code_heap_pools; 57 58 static MemoryPool* _metaspace_pool; 59 static MemoryPool* _compressed_class_pool; 60 61 public: 62 static void set_universe_heap(CollectedHeap* heap); 63 static void add_code_heap_memory_pool(CodeHeap* heap, const char* name); 64 static void add_metaspace_memory_pools(); 65 66 static MemoryPool* get_memory_pool(instanceHandle pool); 67 static MemoryManager* get_memory_manager(instanceHandle mgr); 68 num_memory_pools()69 static const int num_memory_pools() { 70 return _pools_list->length(); 71 } num_memory_managers()72 static const int num_memory_managers() { 73 return _managers_list->length(); 74 } 75 get_memory_pool(int index)76 static MemoryPool* get_memory_pool(int index) { 77 return _pools_list->at(index); 78 } 79 get_memory_manager(int index)80 static MemoryManager* get_memory_manager(int index) { 81 return _managers_list->at(index); 82 } 83 84 static void track_memory_usage(); track_code_cache_memory_usage()85 static void track_code_cache_memory_usage() { 86 // Track memory pool usage of all CodeCache memory pools 87 for (int i = 0; i < _code_heap_pools->length(); ++i) { 88 track_memory_pool_usage(_code_heap_pools->at(i)); 89 } 90 } track_metaspace_memory_usage()91 static void track_metaspace_memory_usage() { 92 track_memory_pool_usage(_metaspace_pool); 93 } track_compressed_class_memory_usage()94 static void track_compressed_class_memory_usage() { 95 track_memory_pool_usage(_compressed_class_pool); 96 } 97 static void track_memory_pool_usage(MemoryPool* pool); 98 99 static void gc_begin(GCMemoryManager* manager, bool recordGCBeginTime, 100 bool recordAccumulatedGCTime, 101 bool recordPreGCUsage, bool recordPeakUsage); 102 static void gc_end(GCMemoryManager* manager, bool recordPostGCUsage, 103 bool recordAccumulatedGCTime, 104 bool recordGCEndTime, bool countCollection, 105 GCCause::Cause cause, 106 bool allMemoryPoolsAffected); 107 108 static void oops_do(OopClosure* f); 109 get_verbose()110 static bool get_verbose() { return log_is_enabled(Info, gc); } 111 static bool set_verbose(bool verbose); 112 113 // Create an instance of java/lang/management/MemoryUsage 114 static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS); 115 }; 116 117 class TraceMemoryManagerStats : public StackObj { 118 private: 119 GCMemoryManager* _gc_memory_manager; 120 bool _allMemoryPoolsAffected; 121 bool _recordGCBeginTime; 122 bool _recordPreGCUsage; 123 bool _recordPeakUsage; 124 bool _recordPostGCUsage; 125 bool _recordAccumulatedGCTime; 126 bool _recordGCEndTime; 127 bool _countCollection; 128 GCCause::Cause _cause; 129 public: TraceMemoryManagerStats()130 TraceMemoryManagerStats() {} 131 TraceMemoryManagerStats(GCMemoryManager* gc_memory_manager, 132 GCCause::Cause cause, 133 bool allMemoryPoolsAffected = true, 134 bool recordGCBeginTime = true, 135 bool recordPreGCUsage = true, 136 bool recordPeakUsage = true, 137 bool recordPostGCUsage = true, 138 bool recordAccumulatedGCTime = true, 139 bool recordGCEndTime = true, 140 bool countCollection = true); 141 142 void initialize(GCMemoryManager* gc_memory_manager, 143 GCCause::Cause cause, 144 bool allMemoryPoolsAffected, 145 bool recordGCBeginTime, 146 bool recordPreGCUsage, 147 bool recordPeakUsage, 148 bool recordPostGCUsage, 149 bool recordAccumulatedGCTime, 150 bool recordGCEndTime, 151 bool countCollection); 152 153 ~TraceMemoryManagerStats(); 154 }; 155 156 #endif // SHARE_VM_SERVICES_MEMORYSERVICE_HPP 157