1/*
2 * Copyright (c) 2013, 2019, 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24
25#ifndef SHARE_GC_G1_G1REMSETSUMMARY_HPP
26#define SHARE_GC_G1_G1REMSETSUMMARY_HPP
27
28#include "utilities/globalDefinitions.hpp"
29#include "utilities/ostream.hpp"
30
31class G1RemSet;
32
33// A G1RemSetSummary manages statistical information about the G1RemSet
34
35class G1RemSetSummary {
36private:
37 friend class GetRSThreadVTimeClosure;
38
39 G1RemSet* _rem_set;
40
41 size_t _num_conc_refined_cards;
42 size_t _num_processed_buf_mutator;
43 size_t _num_processed_buf_rs_threads;
44
45 size_t _num_coarsenings;
46
47 size_t _num_vtimes;
48 double* _rs_threads_vtimes;
49
50 double _sampling_thread_vtime;
51
52 void set_rs_thread_vtime(uint thread, double value);
53 void set_sampling_thread_vtime(double value) {
54 _sampling_thread_vtime = value;
55 }
56
57 // update this summary with current data from various places
58 void update();
59
60public:
61 G1RemSetSummary();
62 G1RemSetSummary(G1RemSet* remset);
63
64 ~G1RemSetSummary();
65
66 // set the counters in this summary to the values of the others
67 void set(G1RemSetSummary* other);
68 // subtract all counters from the other summary, and set them in the current
69 void subtract_from(G1RemSetSummary* other);
70
71 void print_on(outputStream* out);
72
73 double rs_thread_vtime(uint thread) const;
74
75 double sampling_thread_vtime() const {
76 return _sampling_thread_vtime;
77 }
78
79 size_t num_conc_refined_cards() const {
80 return _num_conc_refined_cards;
81 }
82
83 size_t num_processed_buf_mutator() const {
84 return _num_processed_buf_mutator;
85 }
86
87 size_t num_processed_buf_rs_threads() const {
88 return _num_processed_buf_rs_threads;
89 }
90
91 size_t num_processed_buf_total() const {
92 return num_processed_buf_mutator() + num_processed_buf_rs_threads();
93 }
94
95 size_t num_coarsenings() const {
96 return _num_coarsenings;
97 }
98};
99
100#endif // SHARE_GC_G1_G1REMSETSUMMARY_HPP
101