g1StringDedupStat.cpp revision 9727:f944761a3ce3 
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
29G1StringDedupStat::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
51void 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
72void 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
91void 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}
157