g1StringDedupStat.cpp revision 8638:767f36deb0dc 
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.
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23 */
24
25#include "precompiled.hpp"
26#include "gc/g1/g1StringDedupStat.hpp"
27
28G1StringDedupStat::G1StringDedupStat() :
29  _inspected(0),
30  _skipped(0),
31  _hashed(0),
32  _known(0),
33  _new(0),
34  _new_bytes(0),
35  _deduped(0),
36  _deduped_bytes(0),
37  _deduped_young(0),
38  _deduped_young_bytes(0),
39  _deduped_old(0),
40  _deduped_old_bytes(0),
41  _idle(0),
42  _exec(0),
43  _block(0),
44  _start(0.0),
45  _idle_elapsed(0.0),
46  _exec_elapsed(0.0),
47  _block_elapsed(0.0) {
48}
49
50void G1StringDedupStat::add(const G1StringDedupStat& stat) {
51  _inspected           += stat._inspected;
52  _skipped             += stat._skipped;
53  _hashed              += stat._hashed;
54  _known               += stat._known;
55  _new                 += stat._new;
56  _new_bytes           += stat._new_bytes;
57  _deduped             += stat._deduped;
58  _deduped_bytes       += stat._deduped_bytes;
59  _deduped_young       += stat._deduped_young;
60  _deduped_young_bytes += stat._deduped_young_bytes;
61  _deduped_old         += stat._deduped_old;
62  _deduped_old_bytes   += stat._deduped_old_bytes;
63  _idle                += stat._idle;
64  _exec                += stat._exec;
65  _block               += stat._block;
66  _idle_elapsed        += stat._idle_elapsed;
67  _exec_elapsed        += stat._exec_elapsed;
68  _block_elapsed       += stat._block_elapsed;
69}
70
71void G1StringDedupStat::print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat) {
72  double total_deduped_bytes_percent = 0.0;
73
74  if (total_stat._new_bytes > 0) {
75    // Avoid division by zero
76    total_deduped_bytes_percent = (double)total_stat._deduped_bytes / (double)total_stat._new_bytes * 100.0;
77  }
78
79  st->date_stamp(PrintGCDateStamps);
80  st->stamp(PrintGCTimeStamps);
81  st->print_cr(
82    "[GC concurrent-string-deduplication, "
83    G1_STRDEDUP_BYTES_FORMAT_NS "->" G1_STRDEDUP_BYTES_FORMAT_NS "(" G1_STRDEDUP_BYTES_FORMAT_NS "), avg "
84    G1_STRDEDUP_PERCENT_FORMAT_NS ", " G1_STRDEDUP_TIME_FORMAT "]",
85    G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes),
86    G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes - last_stat._deduped_bytes),
87    G1_STRDEDUP_BYTES_PARAM(last_stat._deduped_bytes),
88    total_deduped_bytes_percent,
89    last_stat._exec_elapsed);
90}
91
92void G1StringDedupStat::print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total) {
93  double young_percent               = 0.0;
94  double old_percent                 = 0.0;
95  double skipped_percent             = 0.0;
96  double hashed_percent              = 0.0;
97  double known_percent               = 0.0;
98  double new_percent                 = 0.0;
99  double deduped_percent             = 0.0;
100  double deduped_bytes_percent       = 0.0;
101  double deduped_young_percent       = 0.0;
102  double deduped_young_bytes_percent = 0.0;
103  double deduped_old_percent         = 0.0;
104  double deduped_old_bytes_percent   = 0.0;
105
106  if (stat._inspected > 0) {
107    // Avoid division by zero
108    skipped_percent = (double)stat._skipped / (double)stat._inspected * 100.0;
109    hashed_percent  = (double)stat._hashed / (double)stat._inspected * 100.0;
110    known_percent   = (double)stat._known / (double)stat._inspected * 100.0;
111    new_percent     = (double)stat._new / (double)stat._inspected * 100.0;
112  }
113
114  if (stat._new > 0) {
115    // Avoid division by zero
116    deduped_percent = (double)stat._deduped / (double)stat._new * 100.0;
117  }
118
119  if (stat._deduped > 0) {
120    // Avoid division by zero
121    deduped_young_percent = (double)stat._deduped_young / (double)stat._deduped * 100.0;
122    deduped_old_percent   = (double)stat._deduped_old / (double)stat._deduped * 100.0;
123  }
124
125  if (stat._new_bytes > 0) {
126    // Avoid division by zero
127    deduped_bytes_percent = (double)stat._deduped_bytes / (double)stat._new_bytes * 100.0;
128  }
129
130  if (stat._deduped_bytes > 0) {
131    // Avoid division by zero
132    deduped_young_bytes_percent = (double)stat._deduped_young_bytes / (double)stat._deduped_bytes * 100.0;
133    deduped_old_bytes_percent   = (double)stat._deduped_old_bytes / (double)stat._deduped_bytes * 100.0;
134  }
135
136  if (total) {
137    st->print_cr(
138      "   [Total Exec: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT ", Idle: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT ", Blocked: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT "]",
139      stat._exec, stat._exec_elapsed, stat._idle, stat._idle_elapsed, stat._block, stat._block_elapsed);
140  } else {
141    st->print_cr(
142      "   [Last Exec: " G1_STRDEDUP_TIME_FORMAT ", Idle: " G1_STRDEDUP_TIME_FORMAT ", Blocked: " UINTX_FORMAT "/" G1_STRDEDUP_TIME_FORMAT "]",
143      stat._exec_elapsed, stat._idle_elapsed, stat._block, stat._block_elapsed);
144  }
145  st->print_cr(
146    "      [Inspected:    " G1_STRDEDUP_OBJECTS_FORMAT "]\n"
147    "         [Skipped:   " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]\n"
148    "         [Hashed:    " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]\n"
149    "         [Known:     " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]\n"
150    "         [New:       " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "]\n"
151    "      [Deduplicated: " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]\n"
152    "         [Young:     " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]\n"
153    "         [Old:       " G1_STRDEDUP_OBJECTS_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ") " G1_STRDEDUP_BYTES_FORMAT "(" G1_STRDEDUP_PERCENT_FORMAT ")]",
154    stat._inspected,
155    stat._skipped, skipped_percent,
156    stat._hashed, hashed_percent,
157    stat._known, known_percent,
158    stat._new, new_percent, G1_STRDEDUP_BYTES_PARAM(stat._new_bytes),
159    stat._deduped, deduped_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_bytes), deduped_bytes_percent,
160    stat._deduped_young, deduped_young_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_young_bytes), deduped_young_bytes_percent,
161    stat._deduped_old, deduped_old_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_old_bytes), deduped_old_bytes_percent);
162}
163