Tue, 19 May 2015 15:49:27 +0200
8061715: gc/g1/TestShrinkAuxiliaryData15.java fails with java.lang.RuntimeException: heap decommit failed - after > before
Summary: added WhiteBox methods to count regions and exact aux data sizes
Reviewed-by: jwilhelm, brutisso
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |
aoqi@0 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |
aoqi@0 | 27 | |
aoqi@0 | 28 | #include "memory/allocation.hpp" |
aoqi@0 | 29 | #include "gc_implementation/g1/heapRegion.hpp" |
aoqi@0 | 30 | |
aoqi@0 | 31 | #define SKIP_RETIRED_FULL_REGIONS 1 |
aoqi@0 | 32 | |
aoqi@0 | 33 | class G1HRPrinter VALUE_OBJ_CLASS_SPEC { |
aoqi@0 | 34 | public: |
aoqi@0 | 35 | typedef enum { |
aoqi@0 | 36 | Alloc, |
aoqi@0 | 37 | AllocForce, |
aoqi@0 | 38 | Retire, |
aoqi@0 | 39 | Reuse, |
aoqi@0 | 40 | CSet, |
aoqi@0 | 41 | EvacFailure, |
aoqi@0 | 42 | Cleanup, |
aoqi@0 | 43 | PostCompaction, |
aoqi@0 | 44 | Commit, |
aoqi@0 | 45 | Uncommit |
aoqi@0 | 46 | } ActionType; |
aoqi@0 | 47 | |
aoqi@0 | 48 | typedef enum { |
aoqi@0 | 49 | Unset, |
aoqi@0 | 50 | Eden, |
aoqi@0 | 51 | Survivor, |
aoqi@0 | 52 | Old, |
aoqi@0 | 53 | SingleHumongous, |
aoqi@0 | 54 | StartsHumongous, |
aoqi@0 | 55 | ContinuesHumongous |
aoqi@0 | 56 | } RegionType; |
aoqi@0 | 57 | |
aoqi@0 | 58 | typedef enum { |
aoqi@0 | 59 | StartGC, |
aoqi@0 | 60 | EndGC, |
aoqi@0 | 61 | StartFullGC, |
aoqi@0 | 62 | EndFullGC |
aoqi@0 | 63 | } PhaseType; |
aoqi@0 | 64 | |
aoqi@0 | 65 | private: |
aoqi@0 | 66 | bool _active; |
aoqi@0 | 67 | |
aoqi@0 | 68 | static const char* action_name(ActionType action); |
aoqi@0 | 69 | static const char* region_type_name(RegionType type); |
aoqi@0 | 70 | static const char* phase_name(PhaseType phase); |
aoqi@0 | 71 | |
aoqi@0 | 72 | // Print an action event. This version is used in most scenarios and |
aoqi@0 | 73 | // only prints the region's bottom. The parameters type and top are |
aoqi@0 | 74 | // optional (the "not set" values are Unset and NULL). |
aoqi@0 | 75 | static void print(ActionType action, RegionType type, |
aoqi@0 | 76 | HeapRegion* hr, HeapWord* top); |
aoqi@0 | 77 | |
aoqi@0 | 78 | // Print an action event. This version prints both the region's |
aoqi@0 | 79 | // bottom and end. Used for Commit / Uncommit events. |
aoqi@0 | 80 | static void print(ActionType action, HeapWord* bottom, HeapWord* end); |
aoqi@0 | 81 | |
aoqi@0 | 82 | // Print a phase event. |
aoqi@0 | 83 | static void print(PhaseType phase, size_t phase_num); |
aoqi@0 | 84 | |
aoqi@0 | 85 | public: |
aoqi@0 | 86 | // In some places we iterate over a list in order to generate output |
aoqi@0 | 87 | // for the list's elements. By exposing this we can avoid this |
aoqi@0 | 88 | // iteration if the printer is not active. |
aoqi@0 | 89 | const bool is_active() { return _active; } |
aoqi@0 | 90 | |
aoqi@0 | 91 | // Have to set this explicitly as we have to do this during the |
aoqi@0 | 92 | // heap's initialize() method, not in the constructor. |
aoqi@0 | 93 | void set_active(bool active) { _active = active; } |
aoqi@0 | 94 | |
aoqi@0 | 95 | // The methods below are convenient wrappers for the print() methods. |
aoqi@0 | 96 | |
aoqi@0 | 97 | void alloc(HeapRegion* hr, RegionType type, bool force = false) { |
aoqi@0 | 98 | if (is_active()) { |
aoqi@0 | 99 | print((!force) ? Alloc : AllocForce, type, hr, NULL); |
aoqi@0 | 100 | } |
aoqi@0 | 101 | } |
aoqi@0 | 102 | |
aoqi@0 | 103 | void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { |
aoqi@0 | 104 | if (is_active()) { |
aoqi@0 | 105 | print(Alloc, type, hr, top); |
aoqi@0 | 106 | } |
aoqi@0 | 107 | } |
aoqi@0 | 108 | |
aoqi@0 | 109 | void retire(HeapRegion* hr) { |
aoqi@0 | 110 | if (is_active()) { |
aoqi@0 | 111 | if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { |
aoqi@0 | 112 | print(Retire, Unset, hr, hr->top()); |
aoqi@0 | 113 | } |
aoqi@0 | 114 | } |
aoqi@0 | 115 | } |
aoqi@0 | 116 | |
aoqi@0 | 117 | void reuse(HeapRegion* hr) { |
aoqi@0 | 118 | if (is_active()) { |
aoqi@0 | 119 | print(Reuse, Unset, hr, NULL); |
aoqi@0 | 120 | } |
aoqi@0 | 121 | } |
aoqi@0 | 122 | |
aoqi@0 | 123 | void cset(HeapRegion* hr) { |
aoqi@0 | 124 | if (is_active()) { |
aoqi@0 | 125 | print(CSet, Unset, hr, NULL); |
aoqi@0 | 126 | } |
aoqi@0 | 127 | } |
aoqi@0 | 128 | |
aoqi@0 | 129 | void evac_failure(HeapRegion* hr) { |
aoqi@0 | 130 | if (is_active()) { |
aoqi@0 | 131 | print(EvacFailure, Unset, hr, NULL); |
aoqi@0 | 132 | } |
aoqi@0 | 133 | } |
aoqi@0 | 134 | |
aoqi@0 | 135 | void cleanup(HeapRegion* hr) { |
aoqi@0 | 136 | if (is_active()) { |
aoqi@0 | 137 | print(Cleanup, Unset, hr, NULL); |
aoqi@0 | 138 | } |
aoqi@0 | 139 | } |
aoqi@0 | 140 | |
aoqi@0 | 141 | void post_compaction(HeapRegion* hr, RegionType type) { |
aoqi@0 | 142 | if (is_active()) { |
aoqi@0 | 143 | print(PostCompaction, type, hr, hr->top()); |
aoqi@0 | 144 | } |
aoqi@0 | 145 | } |
aoqi@0 | 146 | |
aoqi@0 | 147 | void commit(HeapWord* bottom, HeapWord* end) { |
aoqi@0 | 148 | if (is_active()) { |
aoqi@0 | 149 | print(Commit, bottom, end); |
aoqi@0 | 150 | } |
aoqi@0 | 151 | } |
aoqi@0 | 152 | |
aoqi@0 | 153 | void uncommit(HeapWord* bottom, HeapWord* end) { |
aoqi@0 | 154 | if (is_active()) { |
aoqi@0 | 155 | print(Uncommit, bottom, end); |
aoqi@0 | 156 | } |
aoqi@0 | 157 | } |
aoqi@0 | 158 | |
aoqi@0 | 159 | void start_gc(bool full, size_t gc_num) { |
aoqi@0 | 160 | if (is_active()) { |
aoqi@0 | 161 | if (!full) { |
aoqi@0 | 162 | print(StartGC, gc_num); |
aoqi@0 | 163 | } else { |
aoqi@0 | 164 | print(StartFullGC, gc_num); |
aoqi@0 | 165 | } |
aoqi@0 | 166 | } |
aoqi@0 | 167 | } |
aoqi@0 | 168 | |
aoqi@0 | 169 | void end_gc(bool full, size_t gc_num) { |
aoqi@0 | 170 | if (is_active()) { |
aoqi@0 | 171 | if (!full) { |
aoqi@0 | 172 | print(EndGC, gc_num); |
aoqi@0 | 173 | } else { |
aoqi@0 | 174 | print(EndFullGC, gc_num); |
aoqi@0 | 175 | } |
aoqi@0 | 176 | } |
aoqi@0 | 177 | } |
aoqi@0 | 178 | |
aoqi@0 | 179 | G1HRPrinter() : _active(false) { } |
aoqi@0 | 180 | }; |
aoqi@0 | 181 | |
aoqi@0 | 182 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |