| File: | jdk/src/hotspot/share/gc/z/zRelocationSetSelector.inline.hpp |
| Warning: | line 65, column 17 Value stored to 'type' during its initialization is never read |
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| 1 | /* |
| 2 | * Copyright (c) 2020, 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 | #ifndef SHARE_GC_Z_ZRELOCATIONSETSELECTOR_INLINE_HPP |
| 25 | #define SHARE_GC_Z_ZRELOCATIONSETSELECTOR_INLINE_HPP |
| 26 | |
| 27 | #include "gc/z/zRelocationSetSelector.hpp" |
| 28 | |
| 29 | #include "gc/z/zArray.inline.hpp" |
| 30 | #include "gc/z/zPage.inline.hpp" |
| 31 | |
| 32 | inline size_t ZRelocationSetSelectorGroupStats::npages() const { |
| 33 | return _npages; |
| 34 | } |
| 35 | |
| 36 | inline size_t ZRelocationSetSelectorGroupStats::total() const { |
| 37 | return _total; |
| 38 | } |
| 39 | |
| 40 | inline size_t ZRelocationSetSelectorGroupStats::live() const { |
| 41 | return _live; |
| 42 | } |
| 43 | |
| 44 | inline size_t ZRelocationSetSelectorGroupStats::empty() const { |
| 45 | return _empty; |
| 46 | } |
| 47 | |
| 48 | inline size_t ZRelocationSetSelectorGroupStats::relocate() const { |
| 49 | return _relocate; |
| 50 | } |
| 51 | |
| 52 | inline const ZRelocationSetSelectorGroupStats& ZRelocationSetSelectorStats::small() const { |
| 53 | return _small; |
| 54 | } |
| 55 | |
| 56 | inline const ZRelocationSetSelectorGroupStats& ZRelocationSetSelectorStats::medium() const { |
| 57 | return _medium; |
| 58 | } |
| 59 | |
| 60 | inline const ZRelocationSetSelectorGroupStats& ZRelocationSetSelectorStats::large() const { |
| 61 | return _large; |
| 62 | } |
| 63 | |
| 64 | inline void ZRelocationSetSelectorGroup::register_live_page(ZPage* page) { |
| 65 | const uint8_t type = page->type(); |
Value stored to 'type' during its initialization is never read | |
| 66 | const size_t size = page->size(); |
| 67 | const size_t live = page->live_bytes(); |
| 68 | const size_t garbage = size - live; |
| 69 | |
| 70 | if (garbage > _fragmentation_limit) { |
| 71 | _live_pages.append(page); |
| 72 | } |
| 73 | |
| 74 | _stats._npages++; |
| 75 | _stats._total += size; |
| 76 | _stats._live += live; |
| 77 | } |
| 78 | |
| 79 | inline void ZRelocationSetSelectorGroup::register_empty_page(ZPage* page) { |
| 80 | const size_t size = page->size(); |
| 81 | |
| 82 | _stats._npages++; |
| 83 | _stats._total += size; |
| 84 | _stats._empty += size; |
| 85 | } |
| 86 | |
| 87 | inline const ZArray<ZPage*>* ZRelocationSetSelectorGroup::selected() const { |
| 88 | return &_live_pages; |
| 89 | } |
| 90 | |
| 91 | inline size_t ZRelocationSetSelectorGroup::forwarding_entries() const { |
| 92 | return _forwarding_entries; |
| 93 | } |
| 94 | |
| 95 | inline const ZRelocationSetSelectorGroupStats& ZRelocationSetSelectorGroup::stats() const { |
| 96 | return _stats; |
| 97 | } |
| 98 | |
| 99 | inline void ZRelocationSetSelector::register_live_page(ZPage* page) { |
| 100 | const uint8_t type = page->type(); |
| 101 | |
| 102 | if (type == ZPageTypeSmall) { |
| 103 | _small.register_live_page(page); |
| 104 | } else if (type == ZPageTypeMedium) { |
| 105 | _medium.register_live_page(page); |
| 106 | } else { |
| 107 | _large.register_live_page(page); |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | inline void ZRelocationSetSelector::register_empty_page(ZPage* page) { |
| 112 | const uint8_t type = page->type(); |
| 113 | |
| 114 | if (type == ZPageTypeSmall) { |
| 115 | _small.register_empty_page(page); |
| 116 | } else if (type == ZPageTypeMedium) { |
| 117 | _medium.register_empty_page(page); |
| 118 | } else { |
| 119 | _large.register_empty_page(page); |
| 120 | } |
| 121 | |
| 122 | _empty_pages.append(page); |
| 123 | } |
| 124 | |
| 125 | inline bool ZRelocationSetSelector::should_free_empty_pages(int bulk) const { |
| 126 | return _empty_pages.length() >= bulk && _empty_pages.is_nonempty(); |
| 127 | } |
| 128 | |
| 129 | inline const ZArray<ZPage*>* ZRelocationSetSelector::empty_pages() const { |
| 130 | return &_empty_pages; |
| 131 | } |
| 132 | |
| 133 | inline void ZRelocationSetSelector::clear_empty_pages() { |
| 134 | return _empty_pages.clear(); |
| 135 | } |
| 136 | |
| 137 | inline size_t ZRelocationSetSelector::total() const { |
| 138 | return _small.stats().total() + _medium.stats().total() + _large.stats().total(); |
| 139 | } |
| 140 | |
| 141 | inline size_t ZRelocationSetSelector::empty() const { |
| 142 | return _small.stats().empty() + _medium.stats().empty() + _large.stats().empty(); |
| 143 | } |
| 144 | |
| 145 | inline size_t ZRelocationSetSelector::relocate() const { |
| 146 | return _small.stats().relocate() + _medium.stats().relocate() + _large.stats().relocate(); |
| 147 | } |
| 148 | |
| 149 | inline const ZArray<ZPage*>* ZRelocationSetSelector::small() const { |
| 150 | return _small.selected(); |
| 151 | } |
| 152 | |
| 153 | inline const ZArray<ZPage*>* ZRelocationSetSelector::medium() const { |
| 154 | return _medium.selected(); |
| 155 | } |
| 156 | |
| 157 | inline size_t ZRelocationSetSelector::forwarding_entries() const { |
| 158 | return _small.forwarding_entries() + _medium.forwarding_entries(); |
| 159 | } |
| 160 | |
| 161 | #endif // SHARE_GC_Z_ZRELOCATIONSETSELECTOR_INLINE_HPP |