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v4.17
  1#!/usr/bin/env perl
  2
  3# Copyright 2008, Intel Corporation
  4#
  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
 21#
 22# Authors:
 23# 	Arjan van de Ven <arjan@linux.intel.com>
 24
 25
 26#
 27# This script turns a dmesg output into a SVG graphic that shows which
 28# functions take how much time. You can view SVG graphics with various
 29# programs, including Inkscape, The Gimp and Firefox.
 30#
 31#
 32# For this script to work, the kernel needs to be compiled with the
 33# CONFIG_PRINTK_TIME configuration option enabled, and with
 34# "initcall_debug" passed on the kernel command line.
 35#
 36# usage:
 37# 	dmesg | perl scripts/bootgraph.pl > output.svg
 38#
 39
 40use strict;
 41use Getopt::Long;
 42my $header = 0;
 43
 44sub help {
 45	my $text = << "EOM";
 46Usage:
 471) dmesg | perl scripts/bootgraph.pl [OPTION] > output.svg
 482) perl scripts/bootgraph.pl -h
 49
 50Options:
 51	-header	Insert kernel version and date
 52EOM
 53	my $std=shift;
 54	if ($std == 1) {
 55		print STDERR $text;
 56	} else {
 57		print $text;
 58	}
 59	exit;
 60}
 61
 62GetOptions(
 63	'h|help'	=>\&help,
 64	'header'	=>\$header
 65);
 66
 67my %start;
 68my %end;
 69my %type;
 70my $done = 0;
 71my $maxtime = 0;
 72my $firsttime = 99999;
 73my $count = 0;
 74my %pids;
 75my %pidctr;
 76
 77my $headerstep = 20;
 78my $xheader = 15;
 79my $yheader = 25;
 80my $cyheader = 0;
 81
 82while (<>) {
 83	my $line = $_;
 84	if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
 85		my $func = $2;
 86		if ($done == 0) {
 87			$start{$func} = $1;
 88			$type{$func} = 0;
 89			if ($1 < $firsttime) {
 90				$firsttime = $1;
 91			}
 92		}
 93		if ($line =~ /\@ ([0-9]+)/) {
 94			$pids{$func} = $1;
 95		}
 96		$count = $count + 1;
 97	}
 98
 99	if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
100		my $pid = $2;
101		my $func;
102		if (!defined($pidctr{$pid})) {
103			$func = "wait_" . $pid . "_1";
104			$pidctr{$pid} = 1;
105		} else {
106			$pidctr{$pid} = $pidctr{$pid} + 1;
107			$func = "wait_" . $pid . "_" . $pidctr{$pid};
108		}
109		if ($done == 0) {
110			$start{$func} = $1;
111			$type{$func} = 1;
112			if ($1 < $firsttime) {
113				$firsttime = $1;
114			}
115		}
116		$pids{$func} = $pid;
117		$count = $count + 1;
118	}
119
120	if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_\.]+)\+.*returned/) {
121		if ($done == 0) {
122			$end{$2} = $1;
123			$maxtime = $1;
124		}
125	}
126
127	if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
128		my $pid = $2;
129		my $func =  "wait_" . $pid . "_" . $pidctr{$pid};
130		$end{$func} = $1;
131		$maxtime = $1;
132	}
133	if ($line =~ /Write protecting the/) {
134		$done = 1;
135	}
136	if ($line =~ /Freeing unused kernel memory/) {
137		$done = 1;
138	}
139}
140
141if ($count == 0) {
142    print STDERR <<END;
143No data found in the dmesg. Make sure that 'printk.time=1' and
144'initcall_debug' are passed on the kernel command line.
 
 
145END
146	help(1);
147    exit 1;
148}
149
150print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
151print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
152
153
154if ($header) {
155	my $version = `uname -a`;
156	my $date = `date`;
157	print "<text transform=\"translate($xheader,$yheader)\">Kernel version: $version</text>\n";
158	$cyheader = $yheader+$headerstep;
159	print "<text transform=\"translate($xheader,$cyheader)\">Date: $date</text>\n";
160}
161
162my @styles;
163
164$styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
165$styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
166$styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
167$styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
168$styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
169$styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
170$styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
171$styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
172$styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
173$styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
174$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
175$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
176
177my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
178
179my $mult = 1950.0 / ($maxtime - $firsttime);
180my $threshold2 = ($maxtime - $firsttime) / 120.0;
181my $threshold = $threshold2/10;
182my $stylecounter = 0;
183my %rows;
184my $rowscount = 1;
185my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
186
187foreach my $key (@initcalls) {
188	my $duration = $end{$key} - $start{$key};
189
190	if ($duration >= $threshold) {
191		my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
192		my $pid = $pids{$key};
193
194		if (!defined($rows{$pid})) {
195			$rows{$pid} = $rowscount;
196			$rowscount = $rowscount + 1;
197		}
198		$s = ($start{$key} - $firsttime) * $mult;
199		$s2 = $s + 6;
200		$s3 = $s + 1;
201		$e = ($end{$key} - $firsttime) * $mult;
202		$w = $e - $s;
203
204		$y = $rows{$pid} * 150;
205		$y2 = $y + 4;
206
207		$style = $styles[$stylecounter];
208		$stylecounter = $stylecounter + 1;
209		if ($stylecounter > 11) {
210			$stylecounter = 0;
211		};
212
213		if ($type{$key} == 1) {
214			$y = $y + 15;
215			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
216		} else {
217			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
218			if ($duration >= $threshold2) {
219				print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
220			} else {
221				print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
222			}
223		}
224	}
225}
226
227
228# print the time line on top
229my $time = $firsttime;
230my $step = ($maxtime - $firsttime) / 15;
231while ($time < $maxtime) {
232	my $s3 = ($time - $firsttime) * $mult;
233	my $tm = int($time * 100) / 100.0;
234	print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
235	$time = $time + $step;
236}
237
238print "</svg>\n";
v3.1
  1#!/usr/bin/perl
  2
  3# Copyright 2008, Intel Corporation
  4#
  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
 21#
 22# Authors:
 23# 	Arjan van de Ven <arjan@linux.intel.com>
 24
 25
 26#
 27# This script turns a dmesg output into a SVG graphic that shows which
 28# functions take how much time. You can view SVG graphics with various
 29# programs, including Inkscape, The Gimp and Firefox.
 30#
 31#
 32# For this script to work, the kernel needs to be compiled with the
 33# CONFIG_PRINTK_TIME configuration option enabled, and with
 34# "initcall_debug" passed on the kernel command line.
 35#
 36# usage:
 37# 	dmesg | perl scripts/bootgraph.pl > output.svg
 38#
 39
 40use strict;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 41
 42my %start;
 43my %end;
 44my %type;
 45my $done = 0;
 46my $maxtime = 0;
 47my $firsttime = 99999;
 48my $count = 0;
 49my %pids;
 50my %pidctr;
 51
 
 
 
 
 
 52while (<>) {
 53	my $line = $_;
 54	if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
 55		my $func = $2;
 56		if ($done == 0) {
 57			$start{$func} = $1;
 58			$type{$func} = 0;
 59			if ($1 < $firsttime) {
 60				$firsttime = $1;
 61			}
 62		}
 63		if ($line =~ /\@ ([0-9]+)/) {
 64			$pids{$func} = $1;
 65		}
 66		$count = $count + 1;
 67	}
 68
 69	if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
 70		my $pid = $2;
 71		my $func;
 72		if (!defined($pidctr{$pid})) {
 73			$func = "wait_" . $pid . "_1";
 74			$pidctr{$pid} = 1;
 75		} else {
 76			$pidctr{$pid} = $pidctr{$pid} + 1;
 77			$func = "wait_" . $pid . "_" . $pidctr{$pid};
 78		}
 79		if ($done == 0) {
 80			$start{$func} = $1;
 81			$type{$func} = 1;
 82			if ($1 < $firsttime) {
 83				$firsttime = $1;
 84			}
 85		}
 86		$pids{$func} = $pid;
 87		$count = $count + 1;
 88	}
 89
 90	if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_\.]+)\+.*returned/) {
 91		if ($done == 0) {
 92			$end{$2} = $1;
 93			$maxtime = $1;
 94		}
 95	}
 96
 97	if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
 98		my $pid = $2;
 99		my $func =  "wait_" . $pid . "_" . $pidctr{$pid};
100		$end{$func} = $1;
101		$maxtime = $1;
102	}
103	if ($line =~ /Write protecting the/) {
104		$done = 1;
105	}
106	if ($line =~ /Freeing unused kernel memory/) {
107		$done = 1;
108	}
109}
110
111if ($count == 0) {
112    print STDERR <<END;
113No data found in the dmesg. Make sure that 'printk.time=1' and
114'initcall_debug' are passed on the kernel command line.
115Usage:
116      dmesg | perl scripts/bootgraph.pl > output.svg
117END
 
118    exit 1;
119}
120
121print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
122print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
 
 
 
 
 
 
 
 
 
123
124my @styles;
125
126$styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
127$styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
128$styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
129$styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
130$styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
131$styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
132$styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
133$styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
134$styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
135$styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
136$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
137$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
138
139my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
140
141my $mult = 1950.0 / ($maxtime - $firsttime);
142my $threshold2 = ($maxtime - $firsttime) / 120.0;
143my $threshold = $threshold2/10;
144my $stylecounter = 0;
145my %rows;
146my $rowscount = 1;
147my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
148
149foreach my $key (@initcalls) {
150	my $duration = $end{$key} - $start{$key};
151
152	if ($duration >= $threshold) {
153		my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
154		my $pid = $pids{$key};
155
156		if (!defined($rows{$pid})) {
157			$rows{$pid} = $rowscount;
158			$rowscount = $rowscount + 1;
159		}
160		$s = ($start{$key} - $firsttime) * $mult;
161		$s2 = $s + 6;
162		$s3 = $s + 1;
163		$e = ($end{$key} - $firsttime) * $mult;
164		$w = $e - $s;
165
166		$y = $rows{$pid} * 150;
167		$y2 = $y + 4;
168
169		$style = $styles[$stylecounter];
170		$stylecounter = $stylecounter + 1;
171		if ($stylecounter > 11) {
172			$stylecounter = 0;
173		};
174
175		if ($type{$key} == 1) {
176			$y = $y + 15;
177			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
178		} else {
179			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
180			if ($duration >= $threshold2) {
181				print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
182			} else {
183				print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
184			}
185		}
186	}
187}
188
189
190# print the time line on top
191my $time = $firsttime;
192my $step = ($maxtime - $firsttime) / 15;
193while ($time < $maxtime) {
194	my $s3 = ($time - $firsttime) * $mult;
195	my $tm = int($time * 100) / 100.0;
196	print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
197	$time = $time + $step;
198}
199
200print "</svg>\n";