Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/shared/cSpaceCounters.hpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | d2a62e0f25eb |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6964458: Reimplement class meta-data storage to use native memory
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2 * Copyright (c) 2002, 2012, 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_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP | |
| 27 | |
| 28 #include "gc_implementation/shared/generationCounters.hpp" | |
| 29 #include "memory/space.inline.hpp" | |
| 30 #include "runtime/perfData.hpp" | |
| 31 | |
| 0 | 32 // A CSpaceCounters is a holder class for performance counters |
| 33 // that track a space; | |
| 34 | |
| 6197 | 35 class CSpaceCounters: public CHeapObj<mtGC> { |
| 0 | 36 friend class VMStructs; |
| 37 | |
| 38 private: | |
| 39 PerfVariable* _capacity; | |
| 40 PerfVariable* _used; | |
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41 PerfVariable* _max_capacity; |
| 0 | 42 |
| 43 // Constant PerfData types don't need to retain a reference. | |
| 44 // However, it's a good idea to document them here. | |
| 45 // PerfConstant* _size; | |
| 46 | |
| 47 ContiguousSpace* _space; | |
| 48 char* _name_space; | |
| 49 | |
| 50 public: | |
| 51 | |
| 52 CSpaceCounters(const char* name, int ordinal, size_t max_size, | |
| 53 ContiguousSpace* s, GenerationCounters* gc); | |
| 54 | |
| 55 ~CSpaceCounters() { | |
| 6197 | 56 if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtInternal); |
| 0 | 57 } |
| 58 | |
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6964458: Reimplement class meta-data storage to use native memory
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59 virtual inline void update_capacity() { |
| 0 | 60 _capacity->set_value(_space->capacity()); |
| 61 } | |
| 62 | |
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6964458: Reimplement class meta-data storage to use native memory
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63 virtual inline void update_used() { |
| 0 | 64 _used->set_value(_space->used()); |
| 65 } | |
| 66 | |
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6964458: Reimplement class meta-data storage to use native memory
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parents:
6197
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67 virtual inline void update_all() { |
| 0 | 68 update_used(); |
| 69 update_capacity(); | |
| 70 } | |
| 71 | |
| 72 const char* name_space() const { return _name_space; } | |
| 73 }; | |
| 74 | |
| 75 class ContiguousSpaceUsedHelper : public PerfLongSampleHelper { | |
| 76 private: | |
| 77 ContiguousSpace* _space; | |
| 78 | |
| 79 public: | |
| 80 ContiguousSpaceUsedHelper(ContiguousSpace* space) : _space(space) { } | |
| 81 | |
| 82 inline jlong take_sample() { | |
| 83 return _space->used(); | |
| 84 } | |
| 85 }; | |
| 1972 | 86 |
| 87 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_CSPACECOUNTERS_HPP |