1 /*
2 * Copyright (c) 2014, 2015, 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
25 #include "precompiled.hpp"
26 #include "gc/g1/g1StringDedupStat.hpp"
27 #include "logging/log.hpp"
28
29 G1StringDedupStat::G1StringDedupStat() :
30 _inspected(0),
31 _skipped(0),
32 _hashed(0),
33 _known(0),
34 _new(0),
35 _new_bytes(0),
36 _deduped(0),
37 _deduped_bytes(0),
38 _deduped_young(0),
39 _deduped_young_bytes(0),
40 _deduped_old(0),
41 _deduped_old_bytes(0),
42 _idle(0),
43 _exec(0),
44 _block(0),
45 _start(0.0),
46 _idle_elapsed(0.0),
47 _exec_elapsed(0.0),
48 _block_elapsed(0.0) {
49 }
50
51 void G1StringDedupStat::add(const G1StringDedupStat& stat) {
52 _inspected += stat._inspected;
53 _skipped += stat._skipped;
54 _hashed += stat._hashed;
55 _known += stat._known;
56 _new += stat._new;
57 _new_bytes += stat._new_bytes;
58 _deduped += stat._deduped;
59 _deduped_bytes += stat._deduped_bytes;
60 _deduped_young += stat._deduped_young;
61 _deduped_young_bytes += stat._deduped_young_bytes;
62 _deduped_old += stat._deduped_old;
63 _deduped_old_bytes += stat._deduped_old_bytes;
64 _idle += stat._idle;
65 _exec += stat._exec;
66 _block += stat._block;
67 _idle_elapsed += stat._idle_elapsed;
68 _exec_elapsed += stat._exec_elapsed;
69 _block_elapsed += stat._block_elapsed;
70 }
71
72 void G1StringDedupStat::print_summary(const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat) {
73 double total_deduped_bytes_percent = 0.0;
74
75 if (total_stat._new_bytes > 0) {
76 // Avoid division by zero
77 total_deduped_bytes_percent = (double)total_stat._deduped_bytes / (double)total_stat._new_bytes * 100.0;
78 }
79
80 log_info(gc, stringdedup)(
81 "Concurrent String Deduplication "
82 G1_STRDEDUP_BYTES_FORMAT_NS "->" G1_STRDEDUP_BYTES_FORMAT_NS "(" G1_STRDEDUP_BYTES_FORMAT_NS "), avg "
83 G1_STRDEDUP_PERCENT_FORMAT_NS ", " G1_STRDEDUP_TIME_FORMAT "]",
84 G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes),
85 G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes - last_stat._deduped_bytes),
86 G1_STRDEDUP_BYTES_PARAM(last_stat._deduped_bytes),
87 total_deduped_bytes_percent,
88 last_stat._exec_elapsed);
89 }
90
91 void G1StringDedupStat::print_statistics(const G1StringDedupStat& stat, bool total) {
92 double young_percent = 0.0;
93 double old_percent = 0.0;
94 double skipped_percent = 0.0;
95 double hashed_percent = 0.0;
96 double known_percent = 0.0;
97 double new_percent = 0.0;
98 double deduped_percent = 0.0;
99 double deduped_bytes_percent = 0.0;
100 double deduped_young_percent = 0.0;
101 double deduped_young_bytes_percent = 0.0;
102 double deduped_old_percent = 0.0;
103 double deduped_old_bytes_percent = 0.0;
104
105 if (stat._inspected > 0) {
106 // Avoid division by zero
107 skipped_percent = (double)stat._skipped / (double)stat._inspected * 100.0;
108 hashed_percent = (double)stat._hashed / (double)stat._inspected * 100.0;
109 known_percent = (double)stat._known / (double)stat._inspected * 100.0;
110 new_percent = (double)stat._new / (double)stat._inspected * 100.0;
111 }
112
113 if (stat._new > 0) {
114 // Avoid division by zero
115 deduped_percent = (double)stat._deduped / (double)stat._new * 100.0;
116 }
117
118 if (stat._deduped > 0) {
119 // Avoid division by zero
120 deduped_young_percent = (double)stat._deduped_young / (double)stat._deduped * 100.0;
121 deduped_old_percent = (double)stat._deduped_old / (double)stat._deduped * 100.0;
122 }
123
124 if (stat._new_bytes > 0) {
125 // Avoid division by zero
126 deduped_bytes_percent = (double)stat._deduped_bytes / (double)stat._new_bytes * 100.0;
127 }
128
129 if (stat._deduped_bytes > 0) {
130 // Avoid division by zero
131 deduped_young_bytes_percent = (double)stat._deduped_young_bytes / (double)stat._deduped_bytes * 100.0;
132 deduped_old_bytes_percent = (double)stat._deduped_old_bytes / (double)stat._deduped_bytes * 100.0;
133 }
134
135 if (total) {
136 log_debug(gc, stringdedup)(
137 " [Total Exec: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT ", Idle: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT ", Blocked: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT "]",
138 stat._exec, stat._exec_elapsed, stat._idle, stat._idle_elapsed, stat._block, stat._block_elapsed);
139 } else {
140 log_debug(gc, stringdedup)(
141 " [Last Exec: " G1_STRDEDUP_TIME_FORMAT ", Idle: " G1_STRDEDUP_TIME_FORMAT ", Blocked: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT "]",
142 stat._exec_elapsed, stat._idle_elapsed, stat._block, stat._block_elapsed);
143 }
144 log_debug(gc, stringdedup)(" [Inspected: " G1_STRDEDUP_OBJECTS_FORMAT "]", stat._inspected);
145 log_debug(gc, stringdedup)(" [Skipped: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]", stat._skipped, skipped_percent);
146 log_debug(gc, stringdedup)(" [Hashed: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]", stat._hashed, hashed_percent);
147 log_debug(gc, stringdedup)(" [Known: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]", stat._known, known_percent);
148 log_debug(gc, stringdedup)(" [New: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "]",
149 stat._new, new_percent, G1_STRDEDUP_BYTES_PARAM(stat._new_bytes));
150 log_debug(gc, stringdedup)(" [Deduplicated: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]",
151 stat._deduped, deduped_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_bytes), deduped_bytes_percent);
152 log_debug(gc, stringdedup)(" [Young: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]",
153 stat._deduped_young, deduped_young_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_young_bytes), deduped_young_bytes_percent);
154 log_debug(gc, stringdedup)(" [Old: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]",
155 stat._deduped_old, deduped_old_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_old_bytes), deduped_old_bytes_percent);
156 }