1 /* 2 * Copyright (c) 2012, 2013, 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_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP 27 28 #include "memory/allocation.hpp" 29 #include "memory/metaspaceChunkFreeListSummary.hpp" 30 31 class VirtualSpaceSummary : public StackObj { 32 HeapWord* _start; 33 HeapWord* _committed_end; 34 HeapWord* _reserved_end; 35 public: 36 VirtualSpaceSummary() : 37 _start(NULL), _committed_end(NULL), _reserved_end(NULL) { } 38 VirtualSpaceSummary(HeapWord* start, HeapWord* committed_end, HeapWord* reserved_end) : 39 _start(start), _committed_end(committed_end), _reserved_end(reserved_end) { } 40 41 HeapWord* start() const { return _start; } 42 HeapWord* committed_end() const { return _committed_end; } 43 HeapWord* reserved_end() const { return _reserved_end; } 44 size_t committed_size() const { return (uintptr_t)_committed_end - (uintptr_t)_start; } 45 size_t reserved_size() const { return (uintptr_t)_reserved_end - (uintptr_t)_start; } 46 }; 47 48 class SpaceSummary : public StackObj { 49 HeapWord* _start; 50 HeapWord* _end; 51 size_t _used; 52 public: 53 SpaceSummary() : 54 _start(NULL), _end(NULL), _used(0) { } 55 SpaceSummary(HeapWord* start, HeapWord* end, size_t used) : 56 _start(start), _end(end), _used(used) { } 57 58 HeapWord* start() const { return _start; } 59 HeapWord* end() const { return _end; } 60 size_t used() const { return _used; } 61 size_t size() const { return (uintptr_t)_end - (uintptr_t)_start; } 62 }; 63 64 class MetaspaceSizes : public StackObj { 65 size_t _committed; 66 size_t _used; 67 size_t _reserved; 68 69 public: 70 MetaspaceSizes() : _committed(0), _used(0), _reserved(0) {} 71 MetaspaceSizes(size_t committed, size_t used, size_t reserved) : 72 _committed(committed), _used(used), _reserved(reserved) {} 73 74 size_t committed() const { return _committed; } 75 size_t used() const { return _used; } 76 size_t reserved() const { return _reserved; } 77 }; 78 79 class GCHeapSummary; 80 class PSHeapSummary; 81 82 class GCHeapSummaryVisitor { 83 public: 84 virtual void visit(const GCHeapSummary* heap_summary) const = 0; 85 virtual void visit(const PSHeapSummary* heap_summary) const {} 86 }; 87 88 class GCHeapSummary : public StackObj { 89 VirtualSpaceSummary _heap; 90 size_t _used; 91 92 public: 93 GCHeapSummary() : 94 _heap(), _used(0) { } 95 GCHeapSummary(VirtualSpaceSummary& heap_space, size_t used) : 96 _heap(heap_space), _used(used) { } 97 98 const VirtualSpaceSummary& heap() const { return _heap; } 99 size_t used() const { return _used; } 100 101 virtual void accept(GCHeapSummaryVisitor* visitor) const { 102 visitor->visit(this); 103 } 104 }; 105 106 class PSHeapSummary : public GCHeapSummary { 107 VirtualSpaceSummary _old; 108 SpaceSummary _old_space; 109 VirtualSpaceSummary _young; 110 SpaceSummary _eden; 111 SpaceSummary _from; 112 SpaceSummary _to; 113 public: 114 PSHeapSummary(VirtualSpaceSummary& heap_space, size_t heap_used, VirtualSpaceSummary old, SpaceSummary old_space, VirtualSpaceSummary young, SpaceSummary eden, SpaceSummary from, SpaceSummary to) : 115 GCHeapSummary(heap_space, heap_used), _old(old), _old_space(old_space), _young(young), _eden(eden), _from(from), _to(to) { } 116 const VirtualSpaceSummary& old() const { return _old; } 117 const SpaceSummary& old_space() const { return _old_space; } 118 const VirtualSpaceSummary& young() const { return _young; } 119 const SpaceSummary& eden() const { return _eden; } 120 const SpaceSummary& from() const { return _from; } 121 const SpaceSummary& to() const { return _to; } 122 123 virtual void accept(GCHeapSummaryVisitor* visitor) const { 124 visitor->visit(this); 125 } 126 }; 127 128 class MetaspaceSummary : public StackObj { 129 size_t _capacity_until_GC; 130 MetaspaceSizes _meta_space; 131 MetaspaceSizes _data_space; 132 MetaspaceSizes _class_space; 133 MetaspaceChunkFreeListSummary _metaspace_chunk_free_list_summary; 134 MetaspaceChunkFreeListSummary _class_chunk_free_list_summary; 135 136 public: 137 MetaspaceSummary() : 138 _capacity_until_GC(0), 139 _meta_space(), 140 _data_space(), 141 _class_space(), 142 _metaspace_chunk_free_list_summary(), 143 _class_chunk_free_list_summary() 144 {} 145 MetaspaceSummary(size_t capacity_until_GC, 146 const MetaspaceSizes& meta_space, 147 const MetaspaceSizes& data_space, 148 const MetaspaceSizes& class_space, 149 const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary, 150 const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary) : 151 _capacity_until_GC(capacity_until_GC), 152 _meta_space(meta_space), 153 _data_space(data_space), 154 _class_space(class_space), 155 _metaspace_chunk_free_list_summary(metaspace_chunk_free_list_summary), 156 _class_chunk_free_list_summary(class_chunk_free_list_summary) 157 {} 158 159 size_t capacity_until_GC() const { return _capacity_until_GC; } 160 const MetaspaceSizes& meta_space() const { return _meta_space; } 161 const MetaspaceSizes& data_space() const { return _data_space; } 162 const MetaspaceSizes& class_space() const { return _class_space; } 163 164 const MetaspaceChunkFreeListSummary& metaspace_chunk_free_list_summary() const { 165 return _metaspace_chunk_free_list_summary; 166 } 167 168 const MetaspaceChunkFreeListSummary& class_chunk_free_list_summary() const { 169 return _class_chunk_free_list_summary; 170 } 171 172 }; 173 174 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCHEAPSUMMARY_HPP