1 /* 2 * Copyright (c) 2007, 2017, 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_VM_SERVICES_PSMEMORYPOOL_HPP 26 #define SHARE_VM_SERVICES_PSMEMORYPOOL_HPP 27 28 #include "gc/parallel/mutableSpace.hpp" 29 #include "gc/parallel/psOldGen.hpp" 30 #include "gc/parallel/psYoungGen.hpp" 31 #include "services/memoryPool.hpp" 32 #include "services/memoryUsage.hpp" 33 34 class PSGenerationPool : public CollectedMemoryPool { 35 private: 36 PSOldGen* _old_gen; 37 38 public: 39 PSGenerationPool(PSOldGen* pool, const char* name, bool support_usage_threshold); 40 41 MemoryUsage get_memory_usage(); 42 size_t used_in_bytes() { return _old_gen->used_in_bytes(); } 43 size_t max_size() const { return _old_gen->reserved().byte_size(); } 44 }; 45 46 class EdenMutableSpacePool : public CollectedMemoryPool { 47 private: 48 PSYoungGen* _young_gen; 49 MutableSpace* _space; 50 51 public: 52 EdenMutableSpacePool(PSYoungGen* young_gen, 53 MutableSpace* space, 54 const char* name, 55 bool support_usage_threshold); 56 57 MutableSpace* space() { return _space; } 58 MemoryUsage get_memory_usage(); 59 size_t used_in_bytes() { return space()->used_in_bytes(); } 60 size_t max_size() const { 61 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces 62 return _young_gen->max_size() - _young_gen->from_space()->capacity_in_bytes() - _young_gen->to_space()->capacity_in_bytes(); 63 } 64 }; 65 66 class SurvivorMutableSpacePool : public CollectedMemoryPool { 67 private: 68 PSYoungGen* _young_gen; 69 70 public: 71 SurvivorMutableSpacePool(PSYoungGen* young_gen, 72 const char* name, 73 bool support_usage_threshold); 74 75 MemoryUsage get_memory_usage(); 76 77 size_t used_in_bytes() { 78 return _young_gen->from_space()->used_in_bytes(); 79 } 80 size_t committed_in_bytes() { 81 return _young_gen->from_space()->capacity_in_bytes(); 82 } 83 size_t max_size() const { 84 // Return current committed size of the from-space 85 return _young_gen->from_space()->capacity_in_bytes(); 86 } 87 }; 88 89 #endif // SHARE_VM_SERVICES_PSMEMORYPOOL_HPP