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src/share/vm/gc_implementation/g1/g1RemSetSummary.hpp@710a3c8b516e (annotated)
src/share/vm/gc_implementation/g1/g1RemSetSummary.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 5812
- 7ec10139bf37
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, 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_G1REMSETSUMMARY_HPP |
| aoqi@0 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSETSUMMARY_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "utilities/ostream.hpp" |
| aoqi@0 | 29 | |
| aoqi@0 | 30 | class G1RemSet; |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // A G1RemSetSummary manages statistical information about the G1RemSet |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | class G1RemSetSummary VALUE_OBJ_CLASS_SPEC { |
| aoqi@0 | 35 | private: |
| aoqi@0 | 36 | friend class GetRSThreadVTimeClosure; |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | G1RemSet* _remset; |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | G1RemSet* remset() const { |
| aoqi@0 | 41 | return _remset; |
| aoqi@0 | 42 | } |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | size_t _num_refined_cards; |
| aoqi@0 | 45 | size_t _num_processed_buf_mutator; |
| aoqi@0 | 46 | size_t _num_processed_buf_rs_threads; |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | size_t _num_coarsenings; |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | double* _rs_threads_vtimes; |
| aoqi@0 | 51 | size_t _num_vtimes; |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | double _sampling_thread_vtime; |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | void set_rs_thread_vtime(uint thread, double value); |
| aoqi@0 | 56 | void set_sampling_thread_vtime(double value) { |
| aoqi@0 | 57 | _sampling_thread_vtime = value; |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | void free_and_null() { |
| aoqi@0 | 61 | if (_rs_threads_vtimes) { |
| aoqi@0 | 62 | FREE_C_HEAP_ARRAY(double, _rs_threads_vtimes, mtGC); |
| aoqi@0 | 63 | _rs_threads_vtimes = NULL; |
| aoqi@0 | 64 | _num_vtimes = 0; |
| aoqi@0 | 65 | } |
| aoqi@0 | 66 | } |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | // update this summary with current data from various places |
| aoqi@0 | 69 | void update(); |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | public: |
| aoqi@0 | 72 | G1RemSetSummary() : _remset(NULL), _num_refined_cards(0), |
| aoqi@0 | 73 | _num_processed_buf_mutator(0), _num_processed_buf_rs_threads(0), _num_coarsenings(0), |
| aoqi@0 | 74 | _rs_threads_vtimes(NULL), _num_vtimes(0), _sampling_thread_vtime(0.0f) { |
| aoqi@0 | 75 | } |
| aoqi@0 | 76 | |
| aoqi@0 | 77 | ~G1RemSetSummary() { |
| aoqi@0 | 78 | free_and_null(); |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | // set the counters in this summary to the values of the others |
| aoqi@0 | 82 | void set(G1RemSetSummary* other); |
| aoqi@0 | 83 | // subtract all counters from the other summary, and set them in the current |
| aoqi@0 | 84 | void subtract_from(G1RemSetSummary* other); |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | // initialize and get the first sampling |
| aoqi@0 | 87 | void initialize(G1RemSet* remset); |
| aoqi@0 | 88 | |
| aoqi@0 | 89 | void print_on(outputStream* out); |
| aoqi@0 | 90 | |
| aoqi@0 | 91 | double rs_thread_vtime(uint thread) const; |
| aoqi@0 | 92 | |
| aoqi@0 | 93 | double sampling_thread_vtime() const { |
| aoqi@0 | 94 | return _sampling_thread_vtime; |
| aoqi@0 | 95 | } |
| aoqi@0 | 96 | |
| aoqi@0 | 97 | size_t num_concurrent_refined_cards() const { |
| aoqi@0 | 98 | return _num_refined_cards; |
| aoqi@0 | 99 | } |
| aoqi@0 | 100 | |
| aoqi@0 | 101 | size_t num_processed_buf_mutator() const { |
| aoqi@0 | 102 | return _num_processed_buf_mutator; |
| aoqi@0 | 103 | } |
| aoqi@0 | 104 | |
| aoqi@0 | 105 | size_t num_processed_buf_rs_threads() const { |
| aoqi@0 | 106 | return _num_processed_buf_rs_threads; |
| aoqi@0 | 107 | } |
| aoqi@0 | 108 | |
| aoqi@0 | 109 | size_t num_processed_buf_total() const { |
| aoqi@0 | 110 | return num_processed_buf_mutator() + num_processed_buf_rs_threads(); |
| aoqi@0 | 111 | } |
| aoqi@0 | 112 | |
| aoqi@0 | 113 | size_t num_coarsenings() const { |
| aoqi@0 | 114 | return _num_coarsenings; |
| aoqi@0 | 115 | } |
| aoqi@0 | 116 | }; |
| aoqi@0 | 117 | |
| aoqi@0 | 118 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSETSUMMARY_HPP |
