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annotate src/share/vm/memory/metaspaceChunkFreeListSummary.hpp @ 20304:a22acf6d7598

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8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24 #ifndef SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP
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25 #define SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP
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26
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27 #include "memory/allocation.hpp"
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28
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29 class MetaspaceChunkFreeListSummary VALUE_OBJ_CLASS_SPEC {
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30 size_t _num_specialized_chunks;
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31 size_t _num_small_chunks;
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32 size_t _num_medium_chunks;
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33 size_t _num_humongous_chunks;
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34
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35 size_t _specialized_chunks_size_in_bytes;
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36 size_t _small_chunks_size_in_bytes;
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37 size_t _medium_chunks_size_in_bytes;
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38 size_t _humongous_chunks_size_in_bytes;
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39
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40 public:
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41 MetaspaceChunkFreeListSummary() :
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42 _num_specialized_chunks(0),
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43 _num_small_chunks(0),
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44 _num_medium_chunks(0),
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45 _num_humongous_chunks(0),
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46 _specialized_chunks_size_in_bytes(0),
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47 _small_chunks_size_in_bytes(0),
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48 _medium_chunks_size_in_bytes(0),
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49 _humongous_chunks_size_in_bytes(0)
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50 {}
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51
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52 MetaspaceChunkFreeListSummary(size_t num_specialized_chunks,
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53 size_t num_small_chunks,
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54 size_t num_medium_chunks,
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55 size_t num_humongous_chunks,
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56 size_t specialized_chunks_size_in_bytes,
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57 size_t small_chunks_size_in_bytes,
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58 size_t medium_chunks_size_in_bytes,
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59 size_t humongous_chunks_size_in_bytes) :
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60 _num_specialized_chunks(num_specialized_chunks),
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61 _num_small_chunks(num_small_chunks),
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62 _num_medium_chunks(num_medium_chunks),
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63 _num_humongous_chunks(num_humongous_chunks),
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64 _specialized_chunks_size_in_bytes(specialized_chunks_size_in_bytes),
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65 _small_chunks_size_in_bytes(small_chunks_size_in_bytes),
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66 _medium_chunks_size_in_bytes(medium_chunks_size_in_bytes),
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67 _humongous_chunks_size_in_bytes(humongous_chunks_size_in_bytes)
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68 {}
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69
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70 size_t num_specialized_chunks() const {
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71 return _num_specialized_chunks;
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72 }
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73
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74 size_t num_small_chunks() const {
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75 return _num_small_chunks;
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76 }
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77
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78 size_t num_medium_chunks() const {
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79 return _num_medium_chunks;
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80 }
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81
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82 size_t num_humongous_chunks() const {
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83 return _num_humongous_chunks;
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84 }
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85
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86 size_t specialized_chunks_size_in_bytes() const {
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87 return _specialized_chunks_size_in_bytes;
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88 }
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89
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90 size_t small_chunks_size_in_bytes() const {
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91 return _small_chunks_size_in_bytes;
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92 }
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93
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94 size_t medium_chunks_size_in_bytes() const {
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95 return _medium_chunks_size_in_bytes;
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96 }
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97
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98 size_t humongous_chunks_size_in_bytes() const {
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99 return _humongous_chunks_size_in_bytes;
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100 }
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101 };
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102
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103 #endif // SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP