Mercurial > hg > graal-compiler
annotate src/share/vm/memory/generationSpec.hpp @ 6197:d2a62e0f25eb
6995781: Native Memory Tracking (Phase 1)
7151532: DCmd for hotspot native memory tracking
Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd
Reviewed-by: acorn, coleenp, fparain
| author | zgu |
|---|---|
| date | Thu, 28 Jun 2012 17:03:16 -0400 |
| parents | f95d63e2154a |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2001, 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 #ifndef SHARE_VM_MEMORY_GENERATIONSPEC_HPP |
| 26 #define SHARE_VM_MEMORY_GENERATIONSPEC_HPP | |
| 27 | |
| 28 #include "memory/generation.hpp" | |
| 29 #include "memory/permGen.hpp" | |
| 30 | |
| 0 | 31 // The specification of a generation. This class also encapsulates |
| 32 // some generation-specific behavior. This is done here rather than as a | |
| 33 // virtual function of Generation because these methods are needed in | |
| 34 // initialization of the Generations. | |
| 6197 | 35 class GenerationSpec : public CHeapObj<mtGC> { |
| 0 | 36 friend class VMStructs; |
| 37 private: | |
| 38 Generation::Name _name; | |
| 39 size_t _init_size; | |
| 40 size_t _max_size; | |
| 41 | |
| 42 public: | |
| 43 GenerationSpec(Generation::Name name, size_t init_size, size_t max_size) { | |
| 44 _name = name; | |
| 45 _init_size = init_size; | |
| 46 _max_size = max_size; | |
| 47 } | |
| 48 | |
| 49 Generation* init(ReservedSpace rs, int level, GenRemSet* remset); | |
| 50 | |
| 51 // Accessors | |
| 52 Generation::Name name() const { return _name; } | |
| 53 size_t init_size() const { return _init_size; } | |
| 54 void set_init_size(size_t size) { _init_size = size; } | |
| 55 size_t max_size() const { return _max_size; } | |
| 56 void set_max_size(size_t size) { _max_size = size; } | |
| 57 | |
| 58 // Alignment | |
| 59 void align(size_t alignment) { | |
| 60 set_init_size(align_size_up(init_size(), alignment)); | |
| 61 set_max_size(align_size_up(max_size(), alignment)); | |
| 62 } | |
| 63 | |
| 64 // Return the number of regions contained in the generation which | |
| 65 // might need to be independently covered by a remembered set. | |
| 66 virtual int n_covered_regions() const { return 1; } | |
| 67 }; | |
| 68 | |
| 69 typedef GenerationSpec* GenerationSpecPtr; | |
| 70 | |
| 71 // The specification of a permanent generation. This class is very | |
| 72 // similar to GenerationSpec in use. Due to PermGen's not being a | |
| 73 // true Generation, we cannot combine the spec classes either. | |
| 6197 | 74 class PermanentGenerationSpec : public CHeapObj<mtGC> { |
| 0 | 75 friend class VMStructs; |
| 76 private: | |
| 77 PermGen::Name _name; | |
| 78 size_t _init_size; | |
| 79 size_t _max_size; | |
| 80 size_t _read_only_size; | |
| 81 size_t _read_write_size; | |
| 82 size_t _misc_data_size; | |
| 83 size_t _misc_code_size; | |
| 84 bool _enable_shared_spaces; | |
| 85 | |
| 86 enum { | |
| 87 _n_spaces = 2 | |
| 88 }; | |
| 89 | |
| 90 public: | |
| 91 PermanentGenerationSpec(PermGen::Name name, size_t init_size, | |
| 92 size_t max_size, size_t read_only_size, | |
| 93 size_t read_write_size, size_t misc_data_size, | |
| 94 size_t misc_code_size); | |
| 95 | |
| 96 PermGen* init(ReservedSpace rs, size_t init_size, GenRemSet* remset); | |
| 97 | |
| 98 void disable_sharing() { | |
| 99 _enable_shared_spaces = false; | |
| 100 _read_only_size = 0; | |
| 101 _read_write_size = 0; | |
| 102 _misc_data_size = 0; | |
| 103 _misc_code_size = 0; | |
| 104 } | |
| 105 | |
| 106 // Accessors | |
| 107 PermGen::Name name() const { return _name; } | |
| 108 size_t init_size() const { return _init_size; } | |
| 109 void set_init_size(size_t size) { _init_size = size; } | |
| 110 | |
| 111 // Max size for user DOES NOT include shared spaces. | |
| 112 // Max size for space allocation DOES include shared spaces. | |
| 113 size_t max_size() const { | |
| 114 return _max_size + _read_only_size + _read_write_size; | |
| 115 } | |
| 116 | |
| 117 // Need one covered region for the main space, and one for the shared | |
| 118 // spaces (together). | |
| 119 int n_covered_regions() const { return 2; } | |
| 120 | |
| 121 void align(size_t alignment); | |
| 122 | |
| 123 size_t read_only_size() const { return _read_only_size; } | |
| 124 size_t read_write_size() const { return _read_write_size; } | |
| 125 size_t misc_data_size() const { return _misc_data_size; } | |
| 126 size_t misc_code_size() const { return _misc_code_size; } | |
| 127 bool enable_shared_spaces() const { return _enable_shared_spaces; } | |
| 128 }; | |
| 1972 | 129 |
| 130 #endif // SHARE_VM_MEMORY_GENERATIONSPEC_HPP |