1 /* 2 * Copyright (c) 2007, 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 # include "incls/_precompiled.incl" 26 # include "incls/_psMemoryPool.cpp.incl" 27 28 PSGenerationPool::PSGenerationPool(PSOldGen* gen, 29 const char* name, 30 PoolType type, 31 bool support_usage_threshold) : 32 CollectedMemoryPool(name, type, gen->capacity_in_bytes(), 33 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) { 34 } 35 36 PSGenerationPool::PSGenerationPool(PSPermGen* gen, 37 const char* name, 38 PoolType type, 39 bool support_usage_threshold) : 40 CollectedMemoryPool(name, type, gen->capacity_in_bytes(), 41 gen->reserved().byte_size(), support_usage_threshold), _gen(gen) { 42 } 43 44 MemoryUsage PSGenerationPool::get_memory_usage() { 45 size_t maxSize = (available_for_allocation() ? max_size() : 0); 46 size_t used = used_in_bytes(); 47 size_t committed = _gen->capacity_in_bytes(); 48 49 return MemoryUsage(initial_size(), used, committed, maxSize); 50 } 51 52 // The max size of EdenMutableSpacePool = 53 // max size of the PSYoungGen - capacity of two survivor spaces 54 // 55 // Max size of PS eden space is changing due to ergonomic. 56 // PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable. 57 // 58 EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen, 59 MutableSpace* space, 60 const char* name, 61 PoolType type, 62 bool support_usage_threshold) : 63 CollectedMemoryPool(name, type, space->capacity_in_bytes(), 64 (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()), 65 support_usage_threshold), 66 _gen(gen), _space(space) { 67 } 68 69 MemoryUsage EdenMutableSpacePool::get_memory_usage() { 70 size_t maxSize = (available_for_allocation() ? max_size() : 0); 71 size_t used = used_in_bytes(); 72 size_t committed = _space->capacity_in_bytes(); 73 74 return MemoryUsage(initial_size(), used, committed, maxSize); 75 } 76 77 // The max size of SurvivorMutableSpacePool = 78 // current capacity of the from-space 79 // 80 // PS from and to survivor spaces could have different sizes. 81 // 82 SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen, 83 const char* name, 84 PoolType type, 85 bool support_usage_threshold) : 86 CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(), 87 gen->from_space()->capacity_in_bytes(), 88 support_usage_threshold), _gen(gen) { 89 } 90 91 MemoryUsage SurvivorMutableSpacePool::get_memory_usage() { 92 size_t maxSize = (available_for_allocation() ? max_size() : 0); 93 size_t used = used_in_bytes(); 94 size_t committed = committed_in_bytes(); 95 return MemoryUsage(initial_size(), used, committed, maxSize); 96 }