1 #!/usr/bin/env perl 1 #!/usr/bin/env perl
2 # SPDX-License-Identifier: GPL-2.0-only <<
3 2
4 # Copyright 2008, Intel Corporation 3 # Copyright 2008, Intel Corporation
5 # 4 #
6 # This file is part of the Linux kernel 5 # This file is part of the Linux kernel
>> 6 #
>> 7 # This program file is free software; you can redistribute it and/or modify it
>> 8 # under the terms of the GNU General Public License as published by the
>> 9 # Free Software Foundation; version 2 of the License.
>> 10 #
>> 11 # This program is distributed in the hope that it will be useful, but WITHOUT
>> 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
>> 13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
>> 14 # for more details.
>> 15 #
>> 16 # You should have received a copy of the GNU General Public License
>> 17 # along with this program in a file named COPYING; if not, write to the
>> 18 # Free Software Foundation, Inc.,
>> 19 # 51 Franklin Street, Fifth Floor,
>> 20 # Boston, MA 02110-1301 USA
7 # 21 #
8 # Authors: 22 # Authors:
9 # Arjan van de Ven <arjan@linux.intel.com 23 # Arjan van de Ven <arjan@linux.intel.com>
10 24
11 25
12 # 26 #
13 # This script turns a dmesg output into a SVG 27 # This script turns a dmesg output into a SVG graphic that shows which
14 # functions take how much time. You can view S 28 # functions take how much time. You can view SVG graphics with various
15 # programs, including Inkscape, The Gimp and F 29 # programs, including Inkscape, The Gimp and Firefox.
16 # 30 #
17 # 31 #
18 # For this script to work, the kernel needs to 32 # For this script to work, the kernel needs to be compiled with the
19 # CONFIG_PRINTK_TIME configuration option enab 33 # CONFIG_PRINTK_TIME configuration option enabled, and with
20 # "initcall_debug" passed on the kernel comman 34 # "initcall_debug" passed on the kernel command line.
21 # 35 #
22 # usage: 36 # usage:
23 # dmesg | perl scripts/bootgraph.pl > ou 37 # dmesg | perl scripts/bootgraph.pl > output.svg
24 # 38 #
25 39
26 use strict; 40 use strict;
27 use Getopt::Long; 41 use Getopt::Long;
28 my $header = 0; 42 my $header = 0;
29 43
30 sub help { 44 sub help {
31 my $text = << "EOM"; 45 my $text = << "EOM";
32 Usage: 46 Usage:
33 1) dmesg | perl scripts/bootgraph.pl [OPTION] 47 1) dmesg | perl scripts/bootgraph.pl [OPTION] > output.svg
34 2) perl scripts/bootgraph.pl -h 48 2) perl scripts/bootgraph.pl -h
35 49
36 Options: 50 Options:
37 -header Insert kernel version and date 51 -header Insert kernel version and date
38 EOM 52 EOM
39 my $std=shift; 53 my $std=shift;
40 if ($std == 1) { 54 if ($std == 1) {
41 print STDERR $text; 55 print STDERR $text;
42 } else { 56 } else {
43 print $text; 57 print $text;
44 } 58 }
45 exit; 59 exit;
46 } 60 }
47 61
48 GetOptions( 62 GetOptions(
49 'h|help' =>\&help, 63 'h|help' =>\&help,
50 'header' =>\$header 64 'header' =>\$header
51 ); 65 );
52 66
53 my %start; 67 my %start;
54 my %end; 68 my %end;
55 my %type; 69 my %type;
56 my $done = 0; 70 my $done = 0;
57 my $maxtime = 0; 71 my $maxtime = 0;
58 my $firsttime = 99999; 72 my $firsttime = 99999;
59 my $count = 0; 73 my $count = 0;
60 my %pids; 74 my %pids;
61 my %pidctr; 75 my %pidctr;
62 76
63 my $headerstep = 20; 77 my $headerstep = 20;
64 my $xheader = 15; 78 my $xheader = 15;
65 my $yheader = 25; 79 my $yheader = 25;
66 my $cyheader = 0; 80 my $cyheader = 0;
67 81
68 while (<>) { 82 while (<>) {
69 my $line = $_; 83 my $line = $_;
70 if ($line =~ /([0-9\.]+)\] calling ([ 84 if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z0-9\_\.]+)\+/) {
71 my $func = $2; 85 my $func = $2;
72 if ($done == 0) { 86 if ($done == 0) {
73 $start{$func} = $1; 87 $start{$func} = $1;
74 $type{$func} = 0; 88 $type{$func} = 0;
75 if ($1 < $firsttime) { 89 if ($1 < $firsttime) {
76 $firsttime = $ 90 $firsttime = $1;
77 } 91 }
78 } 92 }
79 if ($line =~ /\@ ([0-9]+)/) { 93 if ($line =~ /\@ ([0-9]+)/) {
80 $pids{$func} = $1; 94 $pids{$func} = $1;
81 } 95 }
82 $count = $count + 1; 96 $count = $count + 1;
83 } 97 }
84 98
85 if ($line =~ /([0-9\.]+)\] async_waiti 99 if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
86 my $pid = $2; 100 my $pid = $2;
87 my $func; 101 my $func;
88 if (!defined($pidctr{$pid})) { 102 if (!defined($pidctr{$pid})) {
89 $func = "wait_" . $pid 103 $func = "wait_" . $pid . "_1";
90 $pidctr{$pid} = 1; 104 $pidctr{$pid} = 1;
91 } else { 105 } else {
92 $pidctr{$pid} = $pidct 106 $pidctr{$pid} = $pidctr{$pid} + 1;
93 $func = "wait_" . $pid 107 $func = "wait_" . $pid . "_" . $pidctr{$pid};
94 } 108 }
95 if ($done == 0) { 109 if ($done == 0) {
96 $start{$func} = $1; 110 $start{$func} = $1;
97 $type{$func} = 1; 111 $type{$func} = 1;
98 if ($1 < $firsttime) { 112 if ($1 < $firsttime) {
99 $firsttime = $ 113 $firsttime = $1;
100 } 114 }
101 } 115 }
102 $pids{$func} = $pid; 116 $pids{$func} = $pid;
103 $count = $count + 1; 117 $count = $count + 1;
104 } 118 }
105 119
106 if ($line =~ /([0-9\.]+)\] initcall ([ 120 if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_\.]+)\+.*returned/) {
107 if ($done == 0) { 121 if ($done == 0) {
108 $end{$2} = $1; 122 $end{$2} = $1;
109 $maxtime = $1; 123 $maxtime = $1;
110 } 124 }
111 } 125 }
112 126
113 if ($line =~ /([0-9\.]+)\] async_conti 127 if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
114 my $pid = $2; 128 my $pid = $2;
115 my $func = "wait_" . $pid . " 129 my $func = "wait_" . $pid . "_" . $pidctr{$pid};
116 $end{$func} = $1; 130 $end{$func} = $1;
117 $maxtime = $1; 131 $maxtime = $1;
118 } 132 }
119 if ($line =~ /Write protecting the/) { 133 if ($line =~ /Write protecting the/) {
120 $done = 1; 134 $done = 1;
121 } 135 }
122 if ($line =~ /Freeing unused kernel me 136 if ($line =~ /Freeing unused kernel memory/) {
123 $done = 1; 137 $done = 1;
124 } 138 }
125 } 139 }
126 140
127 if ($count == 0) { 141 if ($count == 0) {
128 print STDERR <<END; 142 print STDERR <<END;
129 No data found in the dmesg. Make sure that 'pr 143 No data found in the dmesg. Make sure that 'printk.time=1' and
130 'initcall_debug' are passed on the kernel comm 144 'initcall_debug' are passed on the kernel command line.
131 END 145 END
132 help(1); 146 help(1);
133 exit 1; 147 exit 1;
134 } 148 }
135 149
136 print "<?xml version=\"1.0\" standalone=\"no\" 150 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
137 print "<svg width=\"2000\" height=\"100%\" ver 151 print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
138 152
139 153
140 if ($header) { 154 if ($header) {
141 my $version = `uname -a`; 155 my $version = `uname -a`;
142 my $date = `date`; 156 my $date = `date`;
143 print "<text transform=\"translate($xh 157 print "<text transform=\"translate($xheader,$yheader)\">Kernel version: $version</text>\n";
144 $cyheader = $yheader+$headerstep; 158 $cyheader = $yheader+$headerstep;
145 print "<text transform=\"translate($xh 159 print "<text transform=\"translate($xheader,$cyheader)\">Date: $date</text>\n";
146 } 160 }
147 161
148 my @styles; 162 my @styles;
149 163
150 $styles[0] = "fill:rgb(0,0,255);fill-opacity:0 164 $styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
151 $styles[1] = "fill:rgb(0,255,0);fill-opacity:0 165 $styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
152 $styles[2] = "fill:rgb(255,0,20);fill-opacity: 166 $styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
153 $styles[3] = "fill:rgb(255,255,20);fill-opacit 167 $styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
154 $styles[4] = "fill:rgb(255,0,255);fill-opacity 168 $styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
155 $styles[5] = "fill:rgb(0,255,255);fill-opacity 169 $styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
156 $styles[6] = "fill:rgb(0,128,255);fill-opacity 170 $styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
157 $styles[7] = "fill:rgb(0,255,128);fill-opacity 171 $styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
158 $styles[8] = "fill:rgb(255,0,128);fill-opacity 172 $styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
159 $styles[9] = "fill:rgb(255,255,128);fill-opaci 173 $styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
160 $styles[10] = "fill:rgb(255,128,255);fill-opac 174 $styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
161 $styles[11] = "fill:rgb(128,255,255);fill-opac 175 $styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
162 176
163 my $style_wait = "fill:rgb(128,128,128);fill-o 177 my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
164 178
165 my $mult = 1950.0 / ($maxtime - $firsttime); 179 my $mult = 1950.0 / ($maxtime - $firsttime);
166 my $threshold2 = ($maxtime - $firsttime) / 120 180 my $threshold2 = ($maxtime - $firsttime) / 120.0;
167 my $threshold = $threshold2/10; 181 my $threshold = $threshold2/10;
168 my $stylecounter = 0; 182 my $stylecounter = 0;
169 my %rows; 183 my %rows;
170 my $rowscount = 1; 184 my $rowscount = 1;
171 my @initcalls = sort { $start{$a} <=> $start{$ 185 my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
172 186
173 foreach my $key (@initcalls) { 187 foreach my $key (@initcalls) {
174 my $duration = $end{$key} - $start{$ke 188 my $duration = $end{$key} - $start{$key};
175 189
176 if ($duration >= $threshold) { 190 if ($duration >= $threshold) {
177 my ($s, $s2, $s3, $e, $w, $y, 191 my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
178 my $pid = $pids{$key}; 192 my $pid = $pids{$key};
179 193
180 if (!defined($rows{$pid})) { 194 if (!defined($rows{$pid})) {
181 $rows{$pid} = $rowscou 195 $rows{$pid} = $rowscount;
182 $rowscount = $rowscoun 196 $rowscount = $rowscount + 1;
183 } 197 }
184 $s = ($start{$key} - $firsttim 198 $s = ($start{$key} - $firsttime) * $mult;
185 $s2 = $s + 6; 199 $s2 = $s + 6;
186 $s3 = $s + 1; 200 $s3 = $s + 1;
187 $e = ($end{$key} - $firsttime) 201 $e = ($end{$key} - $firsttime) * $mult;
188 $w = $e - $s; 202 $w = $e - $s;
189 203
190 $y = $rows{$pid} * 150; 204 $y = $rows{$pid} * 150;
191 $y2 = $y + 4; 205 $y2 = $y + 4;
192 206
193 $style = $styles[$stylecounter 207 $style = $styles[$stylecounter];
194 $stylecounter = $stylecounter 208 $stylecounter = $stylecounter + 1;
195 if ($stylecounter > 11) { 209 if ($stylecounter > 11) {
196 $stylecounter = 0; 210 $stylecounter = 0;
197 }; 211 };
198 212
199 if ($type{$key} == 1) { 213 if ($type{$key} == 1) {
200 $y = $y + 15; 214 $y = $y + 15;
201 print "<rect x=\"$s\" 215 print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
202 } else { 216 } else {
203 print "<rect x=\"$s\" 217 print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
204 if ($duration >= $thre 218 if ($duration >= $threshold2) {
205 print "<text t 219 print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
206 } else { 220 } else {
207 print "<text t 221 print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
208 } 222 }
209 } 223 }
210 } 224 }
211 } 225 }
212 226
213 227
214 # print the time line on top 228 # print the time line on top
215 my $time = $firsttime; 229 my $time = $firsttime;
216 my $step = ($maxtime - $firsttime) / 15; 230 my $step = ($maxtime - $firsttime) / 15;
217 while ($time < $maxtime) { 231 while ($time < $maxtime) {
218 my $s3 = ($time - $firsttime) * $mult; 232 my $s3 = ($time - $firsttime) * $mult;
219 my $tm = int($time * 100) / 100.0; 233 my $tm = int($time * 100) / 100.0;
220 print "<text transform=\"translate($s3 234 print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
221 $time = $time + $step; 235 $time = $time + $step;
222 } 236 }
223 237
224 print "</svg>\n"; 238 print "</svg>\n";
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