Mercurial > hg > graal-jvmci-8
annotate src/share/vm/services/memoryPool.cpp @ 8827:42e370795a39
8010818: NPG: Remove metaspace memory pools
Reviewed-by: mgerdin, stefank
| author | ehelin |
|---|---|
| date | Wed, 27 Mar 2013 10:55:37 +0100 |
| parents | dbd5837b342f |
| children | 71963b3f802a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "oops/oop.inline.hpp" | |
| 29 #include "runtime/handles.inline.hpp" | |
| 30 #include "runtime/javaCalls.hpp" | |
| 31 #include "services/lowMemoryDetector.hpp" | |
| 32 #include "services/management.hpp" | |
| 33 #include "services/memoryManager.hpp" | |
| 34 #include "services/memoryPool.hpp" | |
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35 #include "utilities/macros.hpp" |
| 0 | 36 |
| 37 MemoryPool::MemoryPool(const char* name, | |
| 38 PoolType type, | |
| 39 size_t init_size, | |
| 40 size_t max_size, | |
| 41 bool support_usage_threshold, | |
| 42 bool support_gc_threshold) { | |
| 43 _name = name; | |
| 44 _initial_size = init_size; | |
| 45 _max_size = max_size; | |
| 46 _memory_pool_obj = NULL; | |
| 47 _available_for_allocation = true; | |
| 48 _num_managers = 0; | |
| 49 _type = type; | |
| 50 | |
| 51 // initialize the max and init size of collection usage | |
| 52 _after_gc_usage = MemoryUsage(_initial_size, 0, 0, _max_size); | |
| 53 | |
| 54 _usage_sensor = NULL; | |
| 55 _gc_usage_sensor = NULL; | |
| 56 // usage threshold supports both high and low threshold | |
| 57 _usage_threshold = new ThresholdSupport(support_usage_threshold, support_usage_threshold); | |
| 58 // gc usage threshold supports only high threshold | |
| 59 _gc_usage_threshold = new ThresholdSupport(support_gc_threshold, support_gc_threshold); | |
| 60 } | |
| 61 | |
| 62 void MemoryPool::add_manager(MemoryManager* mgr) { | |
| 63 assert(_num_managers < MemoryPool::max_num_managers, "_num_managers exceeds the max"); | |
| 64 if (_num_managers < MemoryPool::max_num_managers) { | |
| 65 _managers[_num_managers] = mgr; | |
| 66 _num_managers++; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 | |
| 71 // Returns an instanceHandle of a MemoryPool object. | |
| 72 // It creates a MemoryPool instance when the first time | |
| 73 // this function is called. | |
| 74 instanceOop MemoryPool::get_memory_pool_instance(TRAPS) { | |
| 75 // Must do an acquire so as to force ordering of subsequent | |
| 76 // loads from anything _memory_pool_obj points to or implies. | |
| 77 instanceOop pool_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_pool_obj); | |
| 78 if (pool_obj == NULL) { | |
| 79 // It's ok for more than one thread to execute the code up to the locked region. | |
| 80 // Extra pool instances will just be gc'ed. | |
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81 Klass* k = Management::sun_management_ManagementFactory_klass(CHECK_NULL); |
| 0 | 82 instanceKlassHandle ik(THREAD, k); |
| 83 | |
| 84 Handle pool_name = java_lang_String::create_from_str(_name, CHECK_NULL); | |
| 85 jlong usage_threshold_value = (_usage_threshold->is_high_threshold_supported() ? 0 : -1L); | |
| 86 jlong gc_usage_threshold_value = (_gc_usage_threshold->is_high_threshold_supported() ? 0 : -1L); | |
| 87 | |
| 88 JavaValue result(T_OBJECT); | |
| 89 JavaCallArguments args; | |
| 90 args.push_oop(pool_name); // Argument 1 | |
| 91 args.push_int((int) is_heap()); // Argument 2 | |
| 92 | |
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93 Symbol* method_name = vmSymbols::createMemoryPool_name(); |
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94 Symbol* signature = vmSymbols::createMemoryPool_signature(); |
| 0 | 95 |
| 96 args.push_long(usage_threshold_value); // Argument 3 | |
| 97 args.push_long(gc_usage_threshold_value); // Argument 4 | |
| 98 | |
| 99 JavaCalls::call_static(&result, | |
| 100 ik, | |
| 101 method_name, | |
| 102 signature, | |
| 103 &args, | |
| 104 CHECK_NULL); | |
| 105 | |
| 106 instanceOop p = (instanceOop) result.get_jobject(); | |
| 107 instanceHandle pool(THREAD, p); | |
| 108 | |
| 109 { | |
| 110 // Get lock since another thread may have create the instance | |
| 111 MutexLocker ml(Management_lock); | |
| 112 | |
| 113 // Check if another thread has created the pool. We reload | |
| 114 // _memory_pool_obj here because some other thread may have | |
| 115 // initialized it while we were executing the code before the lock. | |
| 116 // | |
| 117 // The lock has done an acquire, so the load can't float above it, | |
| 118 // but we need to do a load_acquire as above. | |
| 119 pool_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_pool_obj); | |
| 120 if (pool_obj != NULL) { | |
| 121 return pool_obj; | |
| 122 } | |
| 123 | |
| 124 // Get the address of the object we created via call_special. | |
| 125 pool_obj = pool(); | |
| 126 | |
| 127 // Use store barrier to make sure the memory accesses associated | |
| 128 // with creating the pool are visible before publishing its address. | |
| 129 // The unlock will publish the store to _memory_pool_obj because | |
| 130 // it does a release first. | |
| 131 OrderAccess::release_store_ptr(&_memory_pool_obj, pool_obj); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 return pool_obj; | |
| 136 } | |
| 137 | |
| 138 inline static size_t get_max_value(size_t val1, size_t val2) { | |
| 139 return (val1 > val2 ? val1 : val2); | |
| 140 } | |
| 141 | |
| 142 void MemoryPool::record_peak_memory_usage() { | |
| 143 // Caller in JDK is responsible for synchronization - | |
| 144 // acquire the lock for this memory pool before calling VM | |
| 145 MemoryUsage usage = get_memory_usage(); | |
| 146 size_t peak_used = get_max_value(usage.used(), _peak_usage.used()); | |
| 147 size_t peak_committed = get_max_value(usage.committed(), _peak_usage.committed()); | |
| 148 size_t peak_max_size = get_max_value(usage.max_size(), _peak_usage.max_size()); | |
| 149 | |
| 150 _peak_usage = MemoryUsage(initial_size(), peak_used, peak_committed, peak_max_size); | |
| 151 } | |
| 152 | |
| 153 static void set_sensor_obj_at(SensorInfo** sensor_ptr, instanceHandle sh) { | |
| 154 assert(*sensor_ptr == NULL, "Should be called only once"); | |
| 155 SensorInfo* sensor = new SensorInfo(); | |
| 156 sensor->set_sensor(sh()); | |
| 157 *sensor_ptr = sensor; | |
| 158 } | |
| 159 | |
| 160 void MemoryPool::set_usage_sensor_obj(instanceHandle sh) { | |
| 161 set_sensor_obj_at(&_usage_sensor, sh); | |
| 162 } | |
| 163 | |
| 164 void MemoryPool::set_gc_usage_sensor_obj(instanceHandle sh) { | |
| 165 set_sensor_obj_at(&_gc_usage_sensor, sh); | |
| 166 } | |
| 167 | |
| 168 void MemoryPool::oops_do(OopClosure* f) { | |
| 169 f->do_oop((oop*) &_memory_pool_obj); | |
| 170 if (_usage_sensor != NULL) { | |
| 171 _usage_sensor->oops_do(f); | |
| 172 } | |
| 173 if (_gc_usage_sensor != NULL) { | |
| 174 _gc_usage_sensor->oops_do(f); | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 ContiguousSpacePool::ContiguousSpacePool(ContiguousSpace* space, | |
| 179 const char* name, | |
| 180 PoolType type, | |
| 181 size_t max_size, | |
| 182 bool support_usage_threshold) : | |
| 183 CollectedMemoryPool(name, type, space->capacity(), max_size, | |
| 184 support_usage_threshold), _space(space) { | |
| 185 } | |
| 186 | |
| 187 MemoryUsage ContiguousSpacePool::get_memory_usage() { | |
| 188 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 189 size_t used = used_in_bytes(); | |
| 190 size_t committed = _space->capacity(); | |
| 191 | |
| 192 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 193 } | |
| 194 | |
| 195 SurvivorContiguousSpacePool::SurvivorContiguousSpacePool(DefNewGeneration* gen, | |
| 196 const char* name, | |
| 197 PoolType type, | |
| 198 size_t max_size, | |
| 199 bool support_usage_threshold) : | |
| 200 CollectedMemoryPool(name, type, gen->from()->capacity(), max_size, | |
| 201 support_usage_threshold), _gen(gen) { | |
| 202 } | |
| 203 | |
| 204 MemoryUsage SurvivorContiguousSpacePool::get_memory_usage() { | |
| 205 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 206 size_t used = used_in_bytes(); | |
| 207 size_t committed = committed_in_bytes(); | |
| 208 | |
| 209 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 210 } | |
| 211 | |
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212 #if INCLUDE_ALL_GCS |
| 0 | 213 CompactibleFreeListSpacePool::CompactibleFreeListSpacePool(CompactibleFreeListSpace* space, |
| 214 const char* name, | |
| 215 PoolType type, | |
| 216 size_t max_size, | |
| 217 bool support_usage_threshold) : | |
| 218 CollectedMemoryPool(name, type, space->capacity(), max_size, | |
| 219 support_usage_threshold), _space(space) { | |
| 220 } | |
| 221 | |
| 222 MemoryUsage CompactibleFreeListSpacePool::get_memory_usage() { | |
| 223 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 224 size_t used = used_in_bytes(); | |
| 225 size_t committed = _space->capacity(); | |
| 226 | |
| 227 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 228 } | |
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229 #endif // INCLUDE_ALL_GCS |
| 0 | 230 |
| 231 GenerationPool::GenerationPool(Generation* gen, | |
| 232 const char* name, | |
| 233 PoolType type, | |
| 234 bool support_usage_threshold) : | |
| 235 CollectedMemoryPool(name, type, gen->capacity(), gen->max_capacity(), | |
| 236 support_usage_threshold), _gen(gen) { | |
| 237 } | |
| 238 | |
| 239 MemoryUsage GenerationPool::get_memory_usage() { | |
| 240 size_t used = used_in_bytes(); | |
| 241 size_t committed = _gen->capacity(); | |
| 242 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 243 | |
| 244 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 245 } | |
| 246 | |
| 247 CodeHeapPool::CodeHeapPool(CodeHeap* codeHeap, const char* name, bool support_usage_threshold) : | |
| 248 MemoryPool(name, NonHeap, codeHeap->capacity(), codeHeap->max_capacity(), | |
| 249 support_usage_threshold, false), _codeHeap(codeHeap) { | |
| 250 } | |
| 251 | |
| 252 MemoryUsage CodeHeapPool::get_memory_usage() { | |
| 253 size_t used = used_in_bytes(); | |
| 254 size_t committed = _codeHeap->capacity(); | |
| 255 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 256 | |
| 257 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 258 } |