1 /* 2 * Copyright (c) 2003, 2019, 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_SERVICES_MEMORYSERVICE_HPP 26 #define SHARE_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 #include "utilities/growableArray.hpp" 34 35 // Forward declaration 36 class MemoryPool; 37 class MemoryManager; 38 class GCMemoryManager; 39 class CollectedHeap; 40 class CodeHeap; 41 42 // VM Monitoring and Management Support 43 44 class MemoryService : public AllStatic { 45 private: 46 enum { 47 init_pools_list_size = 10, 48 init_managers_list_size = 5, 49 init_code_heap_pools_size = 9 50 }; 51 52 static GrowableArray<MemoryPool*>* _pools_list; 53 static GrowableArray<MemoryManager*>* _managers_list; 54 55 // memory manager and code heap pools for the CodeCache 56 static MemoryManager* _code_cache_manager; 57 static GrowableArray<MemoryPool*>* _code_heap_pools; 58 59 static MemoryPool* _metaspace_pool; 60 static MemoryPool* _compressed_class_pool; 61 62 public: 63 static void set_universe_heap(CollectedHeap* heap); 64 static void add_code_heap_memory_pool(CodeHeap* heap, const char* name); 65 static void add_metaspace_memory_pools(); 66 67 static MemoryPool* get_memory_pool(instanceHandle pool); 68 static MemoryManager* get_memory_manager(instanceHandle mgr); 69 num_memory_pools()70 static const int num_memory_pools() { 71 return _pools_list->length(); 72 } num_memory_managers()73 static const int num_memory_managers() { 74 return _managers_list->length(); 75 } 76 get_memory_pool(int index)77 static MemoryPool* get_memory_pool(int index) { 78 return _pools_list->at(index); 79 } 80 get_memory_manager(int index)81 static MemoryManager* get_memory_manager(int index) { 82 return _managers_list->at(index); 83 } 84 85 static void track_memory_usage(); track_code_cache_memory_usage()86 static void track_code_cache_memory_usage() { 87 // Track memory pool usage of all CodeCache memory pools 88 for (int i = 0; i < _code_heap_pools->length(); ++i) { 89 track_memory_pool_usage(_code_heap_pools->at(i)); 90 } 91 } track_metaspace_memory_usage()92 static void track_metaspace_memory_usage() { 93 track_memory_pool_usage(_metaspace_pool); 94 } track_compressed_class_memory_usage()95 static void track_compressed_class_memory_usage() { 96 track_memory_pool_usage(_compressed_class_pool); 97 } 98 static void track_memory_pool_usage(MemoryPool* pool); 99 100 static void gc_begin(GCMemoryManager* manager, bool recordGCBeginTime, 101 bool recordAccumulatedGCTime, 102 bool recordPreGCUsage, bool recordPeakUsage); 103 static void gc_end(GCMemoryManager* manager, bool recordPostGCUsage, 104 bool recordAccumulatedGCTime, 105 bool recordGCEndTime, bool countCollection, 106 GCCause::Cause cause, 107 bool allMemoryPoolsAffected); 108 get_verbose()109 static bool get_verbose() { return log_is_enabled(Info, gc); } 110 static bool set_verbose(bool verbose); 111 112 // Create an instance of java/lang/management/MemoryUsage 113 static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS); 114 }; 115 116 class TraceMemoryManagerStats : public StackObj { 117 private: 118 GCMemoryManager* _gc_memory_manager; 119 bool _allMemoryPoolsAffected; 120 bool _recordGCBeginTime; 121 bool _recordPreGCUsage; 122 bool _recordPeakUsage; 123 bool _recordPostGCUsage; 124 bool _recordAccumulatedGCTime; 125 bool _recordGCEndTime; 126 bool _countCollection; 127 GCCause::Cause _cause; 128 public: TraceMemoryManagerStats()129 TraceMemoryManagerStats() {} 130 TraceMemoryManagerStats(GCMemoryManager* gc_memory_manager, 131 GCCause::Cause cause, 132 bool allMemoryPoolsAffected = true, 133 bool recordGCBeginTime = true, 134 bool recordPreGCUsage = true, 135 bool recordPeakUsage = true, 136 bool recordPostGCUsage = true, 137 bool recordAccumulatedGCTime = true, 138 bool recordGCEndTime = true, 139 bool countCollection = true); 140 141 void initialize(GCMemoryManager* gc_memory_manager, 142 GCCause::Cause cause, 143 bool allMemoryPoolsAffected, 144 bool recordGCBeginTime, 145 bool recordPreGCUsage, 146 bool recordPeakUsage, 147 bool recordPostGCUsage, 148 bool recordAccumulatedGCTime, 149 bool recordGCEndTime, 150 bool countCollection); 151 152 ~TraceMemoryManagerStats(); 153 }; 154 155 #endif // SHARE_SERVICES_MEMORYSERVICE_HPP 156