Mercurial > hg > truffle
annotate src/share/vm/services/psMemoryPool.cpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2007, 2010, 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 "gc_implementation/parallelScavenge/psPermGen.hpp" | |
| 29 #include "oops/oop.inline.hpp" | |
| 30 #include "runtime/handles.inline.hpp" | |
| 31 #include "runtime/javaCalls.hpp" | |
| 32 #include "services/lowMemoryDetector.hpp" | |
| 33 #include "services/management.hpp" | |
| 34 #include "services/memoryManager.hpp" | |
| 35 #include "services/psMemoryPool.hpp" | |
| 0 | 36 |
| 37 PSGenerationPool::PSGenerationPool(PSOldGen* gen, | |
| 38 const char* name, | |
| 39 PoolType type, | |
| 40 bool support_usage_threshold) : | |
| 41 CollectedMemoryPool(name, type, gen->capacity_in_bytes(), | |
| 42 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) { | |
| 43 } | |
| 44 | |
| 45 PSGenerationPool::PSGenerationPool(PSPermGen* gen, | |
| 46 const char* name, | |
| 47 PoolType type, | |
| 48 bool support_usage_threshold) : | |
| 49 CollectedMemoryPool(name, type, gen->capacity_in_bytes(), | |
| 50 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) { | |
| 51 } | |
| 52 | |
| 53 MemoryUsage PSGenerationPool::get_memory_usage() { | |
| 54 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 55 size_t used = used_in_bytes(); | |
| 56 size_t committed = _gen->capacity_in_bytes(); | |
| 57 | |
| 58 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 59 } | |
| 60 | |
| 61 // The max size of EdenMutableSpacePool = | |
| 62 // max size of the PSYoungGen - capacity of two survivor spaces | |
| 63 // | |
| 64 // Max size of PS eden space is changing due to ergonomic. | |
| 65 // PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable. | |
| 66 // | |
| 67 EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen, | |
| 68 MutableSpace* space, | |
| 69 const char* name, | |
| 70 PoolType type, | |
| 71 bool support_usage_threshold) : | |
| 72 CollectedMemoryPool(name, type, space->capacity_in_bytes(), | |
| 73 (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()), | |
| 74 support_usage_threshold), | |
| 75 _gen(gen), _space(space) { | |
| 76 } | |
| 77 | |
| 78 MemoryUsage EdenMutableSpacePool::get_memory_usage() { | |
| 79 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 80 size_t used = used_in_bytes(); | |
| 81 size_t committed = _space->capacity_in_bytes(); | |
| 82 | |
| 83 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 84 } | |
| 85 | |
| 86 // The max size of SurvivorMutableSpacePool = | |
| 87 // current capacity of the from-space | |
| 88 // | |
| 89 // PS from and to survivor spaces could have different sizes. | |
| 90 // | |
| 91 SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen, | |
| 92 const char* name, | |
| 93 PoolType type, | |
| 94 bool support_usage_threshold) : | |
| 95 CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(), | |
| 96 gen->from_space()->capacity_in_bytes(), | |
| 97 support_usage_threshold), _gen(gen) { | |
| 98 } | |
| 99 | |
| 100 MemoryUsage SurvivorMutableSpacePool::get_memory_usage() { | |
| 101 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
| 102 size_t used = used_in_bytes(); | |
| 103 size_t committed = committed_in_bytes(); | |
| 104 return MemoryUsage(initial_size(), used, committed, maxSize); | |
| 105 } |