Wed, 03 Jul 2019 20:42:37 +0800
Merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #ifndef SHARE_VM_SERVICES_MEMORYPOOL_HPP |
aoqi@0 | 26 | #define SHARE_VM_SERVICES_MEMORYPOOL_HPP |
aoqi@0 | 27 | |
aoqi@0 | 28 | #include "gc_implementation/shared/mutableSpace.hpp" |
aoqi@0 | 29 | #include "memory/defNewGeneration.hpp" |
aoqi@0 | 30 | #include "memory/heap.hpp" |
aoqi@0 | 31 | #include "memory/space.hpp" |
aoqi@0 | 32 | #include "services/memoryUsage.hpp" |
aoqi@0 | 33 | #include "utilities/macros.hpp" |
aoqi@0 | 34 | #if INCLUDE_ALL_GCS |
aoqi@0 | 35 | #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
aoqi@0 | 36 | #endif // INCLUDE_ALL_GCS |
aoqi@0 | 37 | |
aoqi@0 | 38 | // A memory pool represents the memory area that the VM manages. |
aoqi@0 | 39 | // The Java virtual machine has at least one memory pool |
aoqi@0 | 40 | // and it may create or remove memory pools during execution. |
aoqi@0 | 41 | // A memory pool can belong to the heap or the non-heap memory. |
aoqi@0 | 42 | // A Java virtual machine may also have memory pools belonging to |
aoqi@0 | 43 | // both heap and non-heap memory. |
aoqi@0 | 44 | |
aoqi@0 | 45 | // Forward declaration |
aoqi@0 | 46 | class MemoryManager; |
aoqi@0 | 47 | class SensorInfo; |
aoqi@0 | 48 | class Generation; |
aoqi@0 | 49 | class DefNewGeneration; |
aoqi@0 | 50 | class ThresholdSupport; |
aoqi@0 | 51 | |
aoqi@0 | 52 | class MemoryPool : public CHeapObj<mtInternal> { |
aoqi@0 | 53 | friend class MemoryManager; |
aoqi@0 | 54 | public: |
aoqi@0 | 55 | enum PoolType { |
aoqi@0 | 56 | Heap = 1, |
aoqi@0 | 57 | NonHeap = 2 |
aoqi@0 | 58 | }; |
aoqi@0 | 59 | |
aoqi@0 | 60 | private: |
aoqi@0 | 61 | enum { |
aoqi@0 | 62 | max_num_managers = 5 |
aoqi@0 | 63 | }; |
aoqi@0 | 64 | |
aoqi@0 | 65 | // We could make some of the following as performance counters |
aoqi@0 | 66 | // for external monitoring. |
aoqi@0 | 67 | const char* _name; |
aoqi@0 | 68 | PoolType _type; |
aoqi@0 | 69 | size_t _initial_size; |
aoqi@0 | 70 | size_t _max_size; |
aoqi@0 | 71 | bool _available_for_allocation; // Default is true |
aoqi@0 | 72 | MemoryManager* _managers[max_num_managers]; |
aoqi@0 | 73 | int _num_managers; |
aoqi@0 | 74 | MemoryUsage _peak_usage; // Peak memory usage |
aoqi@0 | 75 | MemoryUsage _after_gc_usage; // After GC memory usage |
aoqi@0 | 76 | |
aoqi@0 | 77 | ThresholdSupport* _usage_threshold; |
aoqi@0 | 78 | ThresholdSupport* _gc_usage_threshold; |
aoqi@0 | 79 | |
aoqi@0 | 80 | SensorInfo* _usage_sensor; |
aoqi@0 | 81 | SensorInfo* _gc_usage_sensor; |
aoqi@0 | 82 | |
aoqi@0 | 83 | volatile instanceOop _memory_pool_obj; |
aoqi@0 | 84 | |
aoqi@0 | 85 | void add_manager(MemoryManager* mgr); |
aoqi@0 | 86 | |
aoqi@0 | 87 | public: |
aoqi@0 | 88 | MemoryPool(const char* name, |
aoqi@0 | 89 | PoolType type, |
aoqi@0 | 90 | size_t init_size, |
aoqi@0 | 91 | size_t max_size, |
aoqi@0 | 92 | bool support_usage_threshold, |
aoqi@0 | 93 | bool support_gc_threshold); |
aoqi@0 | 94 | |
aoqi@0 | 95 | const char* name() { return _name; } |
aoqi@0 | 96 | bool is_heap() { return _type == Heap; } |
aoqi@0 | 97 | bool is_non_heap() { return _type == NonHeap; } |
aoqi@0 | 98 | size_t initial_size() const { return _initial_size; } |
aoqi@0 | 99 | int num_memory_managers() const { return _num_managers; } |
aoqi@0 | 100 | // max size could be changed |
aoqi@0 | 101 | virtual size_t max_size() const { return _max_size; } |
aoqi@0 | 102 | |
aoqi@0 | 103 | bool is_pool(instanceHandle pool) { return (pool() == _memory_pool_obj); } |
aoqi@0 | 104 | |
aoqi@0 | 105 | bool available_for_allocation() { return _available_for_allocation; } |
aoqi@0 | 106 | bool set_available_for_allocation(bool value) { |
aoqi@0 | 107 | bool prev = _available_for_allocation; |
aoqi@0 | 108 | _available_for_allocation = value; |
aoqi@0 | 109 | return prev; |
aoqi@0 | 110 | } |
aoqi@0 | 111 | |
aoqi@0 | 112 | MemoryManager* get_memory_manager(int index) { |
aoqi@0 | 113 | assert(index >= 0 && index < _num_managers, "Invalid index"); |
aoqi@0 | 114 | return _managers[index]; |
aoqi@0 | 115 | } |
aoqi@0 | 116 | |
aoqi@0 | 117 | // Records current memory usage if it's a peak usage |
aoqi@0 | 118 | void record_peak_memory_usage(); |
aoqi@0 | 119 | |
aoqi@0 | 120 | MemoryUsage get_peak_memory_usage() { |
aoqi@0 | 121 | // check current memory usage first and then return peak usage |
aoqi@0 | 122 | record_peak_memory_usage(); |
aoqi@0 | 123 | return _peak_usage; |
aoqi@0 | 124 | } |
aoqi@0 | 125 | void reset_peak_memory_usage() { |
aoqi@0 | 126 | _peak_usage = get_memory_usage(); |
aoqi@0 | 127 | } |
aoqi@0 | 128 | |
aoqi@0 | 129 | ThresholdSupport* usage_threshold() { return _usage_threshold; } |
aoqi@0 | 130 | ThresholdSupport* gc_usage_threshold() { return _gc_usage_threshold; } |
aoqi@0 | 131 | |
aoqi@0 | 132 | SensorInfo* usage_sensor() { return _usage_sensor; } |
aoqi@0 | 133 | SensorInfo* gc_usage_sensor() { return _gc_usage_sensor; } |
aoqi@0 | 134 | |
aoqi@0 | 135 | void set_usage_sensor_obj(instanceHandle s); |
aoqi@0 | 136 | void set_gc_usage_sensor_obj(instanceHandle s); |
aoqi@0 | 137 | void set_last_collection_usage(MemoryUsage u) { _after_gc_usage = u; } |
aoqi@0 | 138 | |
aoqi@0 | 139 | virtual instanceOop get_memory_pool_instance(TRAPS); |
aoqi@0 | 140 | virtual MemoryUsage get_memory_usage() = 0; |
aoqi@0 | 141 | virtual size_t used_in_bytes() = 0; |
aoqi@0 | 142 | virtual bool is_collected_pool() { return false; } |
aoqi@0 | 143 | virtual MemoryUsage get_last_collection_usage() { return _after_gc_usage; } |
aoqi@0 | 144 | |
aoqi@0 | 145 | // GC support |
aoqi@0 | 146 | void oops_do(OopClosure* f); |
aoqi@0 | 147 | }; |
aoqi@0 | 148 | |
aoqi@0 | 149 | class CollectedMemoryPool : public MemoryPool { |
aoqi@0 | 150 | public: |
aoqi@0 | 151 | CollectedMemoryPool(const char* name, PoolType type, size_t init_size, size_t max_size, bool support_usage_threshold) : |
aoqi@0 | 152 | MemoryPool(name, type, init_size, max_size, support_usage_threshold, true) {}; |
aoqi@0 | 153 | bool is_collected_pool() { return true; } |
aoqi@0 | 154 | }; |
aoqi@0 | 155 | |
aoqi@0 | 156 | class ContiguousSpacePool : public CollectedMemoryPool { |
aoqi@0 | 157 | private: |
aoqi@0 | 158 | ContiguousSpace* _space; |
aoqi@0 | 159 | |
aoqi@0 | 160 | public: |
aoqi@0 | 161 | ContiguousSpacePool(ContiguousSpace* space, const char* name, PoolType type, size_t max_size, bool support_usage_threshold); |
aoqi@0 | 162 | |
aoqi@0 | 163 | ContiguousSpace* space() { return _space; } |
aoqi@0 | 164 | MemoryUsage get_memory_usage(); |
aoqi@0 | 165 | size_t used_in_bytes() { return space()->used(); } |
aoqi@0 | 166 | }; |
aoqi@0 | 167 | |
aoqi@0 | 168 | class SurvivorContiguousSpacePool : public CollectedMemoryPool { |
aoqi@0 | 169 | private: |
aoqi@0 | 170 | DefNewGeneration* _gen; |
aoqi@0 | 171 | |
aoqi@0 | 172 | public: |
aoqi@0 | 173 | SurvivorContiguousSpacePool(DefNewGeneration* gen, |
aoqi@0 | 174 | const char* name, |
aoqi@0 | 175 | PoolType type, |
aoqi@0 | 176 | size_t max_size, |
aoqi@0 | 177 | bool support_usage_threshold); |
aoqi@0 | 178 | |
aoqi@0 | 179 | MemoryUsage get_memory_usage(); |
aoqi@0 | 180 | |
aoqi@0 | 181 | size_t used_in_bytes() { |
aoqi@0 | 182 | return _gen->from()->used(); |
aoqi@0 | 183 | } |
aoqi@0 | 184 | size_t committed_in_bytes() { |
aoqi@0 | 185 | return _gen->from()->capacity(); |
aoqi@0 | 186 | } |
aoqi@0 | 187 | }; |
aoqi@0 | 188 | |
aoqi@0 | 189 | #if INCLUDE_ALL_GCS |
aoqi@0 | 190 | class CompactibleFreeListSpacePool : public CollectedMemoryPool { |
aoqi@0 | 191 | private: |
aoqi@0 | 192 | CompactibleFreeListSpace* _space; |
aoqi@0 | 193 | public: |
aoqi@0 | 194 | CompactibleFreeListSpacePool(CompactibleFreeListSpace* space, |
aoqi@0 | 195 | const char* name, |
aoqi@0 | 196 | PoolType type, |
aoqi@0 | 197 | size_t max_size, |
aoqi@0 | 198 | bool support_usage_threshold); |
aoqi@0 | 199 | |
aoqi@0 | 200 | MemoryUsage get_memory_usage(); |
aoqi@0 | 201 | size_t used_in_bytes() { return _space->used(); } |
aoqi@0 | 202 | }; |
aoqi@0 | 203 | #endif // INCLUDE_ALL_GCS |
aoqi@0 | 204 | |
aoqi@0 | 205 | |
aoqi@0 | 206 | class GenerationPool : public CollectedMemoryPool { |
aoqi@0 | 207 | private: |
aoqi@0 | 208 | Generation* _gen; |
aoqi@0 | 209 | public: |
aoqi@0 | 210 | GenerationPool(Generation* gen, const char* name, PoolType type, bool support_usage_threshold); |
aoqi@0 | 211 | |
aoqi@0 | 212 | MemoryUsage get_memory_usage(); |
aoqi@0 | 213 | size_t used_in_bytes() { return _gen->used(); } |
aoqi@0 | 214 | }; |
aoqi@0 | 215 | |
aoqi@0 | 216 | class CodeHeapPool: public MemoryPool { |
aoqi@0 | 217 | private: |
aoqi@0 | 218 | CodeHeap* _codeHeap; |
aoqi@0 | 219 | public: |
aoqi@0 | 220 | CodeHeapPool(CodeHeap* codeHeap, const char* name, bool support_usage_threshold); |
aoqi@0 | 221 | MemoryUsage get_memory_usage(); |
aoqi@0 | 222 | size_t used_in_bytes() { return _codeHeap->allocated_capacity(); } |
aoqi@0 | 223 | }; |
aoqi@0 | 224 | |
aoqi@0 | 225 | class MetaspacePool : public MemoryPool { |
aoqi@0 | 226 | size_t calculate_max_size() const; |
aoqi@0 | 227 | public: |
aoqi@0 | 228 | MetaspacePool(); |
aoqi@0 | 229 | MemoryUsage get_memory_usage(); |
aoqi@0 | 230 | size_t used_in_bytes(); |
aoqi@0 | 231 | }; |
aoqi@0 | 232 | |
aoqi@0 | 233 | class CompressedKlassSpacePool : public MemoryPool { |
aoqi@0 | 234 | public: |
aoqi@0 | 235 | CompressedKlassSpacePool(); |
aoqi@0 | 236 | MemoryUsage get_memory_usage(); |
aoqi@0 | 237 | size_t used_in_bytes(); |
aoqi@0 | 238 | }; |
aoqi@0 | 239 | |
aoqi@0 | 240 | #endif // SHARE_VM_SERVICES_MEMORYPOOL_HPP |