#!/usr/bin/perl # Copyright 2008, Intel Corporation## This file is part of the Linux kernel## This program file is free software; you can redistribute it and/or modify it# under the terms of the GNU General Public License as published by the# Free Software Foundation; version 2 of the License.## This program is distributed in the hope that it will be useful, but WITHOUT# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License# for more details.## You should have received a copy of the GNU General Public License# along with this program in a file named COPYING; if not, write to the# Free Software Foundation, Inc.,# 51 Franklin Street, Fifth Floor,# Boston, MA 02110-1301 USA## Authors:# Arjan van de Ven <arjan@linux.intel.com> ## This script turns a dmesg output into a SVG graphic that shows which# functions take how much time. You can view SVG graphics with various# programs, including Inkscape, The Gimp and Firefox.### For this script to work, the kernel needs to be compiled with the# CONFIG_PRINTK_TIME configuration option enabled, and with# "initcall_debug" passed on the kernel command line.## usage:# dmesg | perl scripts/bootgraph.pl > output.svg# my %start, %end;my $done = 0;my $maxtime = 0;my $firsttime = 100;my $count = 0;my %pids; while (<>) { my $line = $_; if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z0-9\_]+)\+/) { my $func = $2; if ($done == 0) { $start{$func} = $1; if ($1 < $firsttime) { $firsttime = $1; } } if ($line =~ /\@ ([0-9]+)/) { $pids{$func} = $1; } $count = $count + 1; } if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) { if ($done == 0) { $end{$2} = $1; $maxtime = $1; } } if ($line =~ /Write protecting the/) { $done = 1; } if ($line =~ /Freeing unused kernel memory/) { $done = 1; }} if ($count == 0) { print "No data found in the dmesg. Make sure that 'printk.time=1' and\n"; print "'initcall_debug' are passed on the kernel command line.\n\n"; print "Usage: \n"; print " dmesg | perl scripts/bootgraph.pl > output.svg\n\n"; exit;} print "<?xml version=\"1.0\" standalone=\"no\"?> \n";print "<svg width=\"1000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n"; my @styles; $styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)"; my $mult = 950.0 / ($maxtime - $firsttime);my $threshold = ($maxtime - $firsttime) / 60.0;my $stylecounter = 0;my %rows;my $rowscount = 1;while (($key,$value) = each %start) { my $duration = $end{$key} - $start{$key}; if ($duration >= $threshold) { my $s, $s2, $e, $y; $pid = $pids{$key}; if (!defined($rows{$pid})) { $rows{$pid} = $rowscount; $rowscount = $rowscount + 1; } $s = ($value - $firsttime) * $mult; $s2 = $s + 6; $e = ($end{$key} - $firsttime) * $mult; $w = $e - $s; $y = $rows{$pid} * 150; $y2 = $y + 4; $style = $styles[$stylecounter]; $stylecounter = $stylecounter + 1; if ($stylecounter > 11) { $stylecounter = 0; }; print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n"; print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n"; }} # print the time line on topmy $time = $firsttime;my $step = ($maxtime - $firsttime) / 15;while ($time < $maxtime) { my $s2 = ($time - $firsttime) * $mult; my $tm = int($time * 100) / 100.0; print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n"; $time = $time + $step;} print "</svg>\n";
#!/usr/bin/perl
# Copyright 2008, Intel Corporation
#
# This file is part of the Linux kernel
#
# This program file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program in a file named COPYING; if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301 USA
#
# Authors:
# Arjan van de Ven <arjan@linux.intel.com>
#
# This script turns a dmesg output into a SVG graphic that shows which
# functions take how much time. You can view SVG graphics with various
# programs, including Inkscape, The Gimp and Firefox.
#
#
# For this script to work, the kernel needs to be compiled with the
# CONFIG_PRINTK_TIME configuration option enabled, and with
# "initcall_debug" passed on the kernel command line.
#
# usage:
# dmesg | perl scripts/bootgraph.pl > output.svg
#
my %start, %end;
my $done = 0;
my $maxtime = 0;
my $firsttime = 100;
my $count = 0;
my %pids;
while (<>) {
my $line = $_;
if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z0-9\_]+)\+/) {
my $func = $2;
if ($done == 0) {
$start{$func} = $1;
if ($1 < $firsttime) {
$firsttime = $1;
}
}
if ($line =~ /\@ ([0-9]+)/) {
$pids{$func} = $1;
}
$count = $count + 1;
}
if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
if ($done == 0) {
$end{$2} = $1;
$maxtime = $1;
}
}
if ($line =~ /Write protecting the/) {
$done = 1;
}
if ($line =~ /Freeing unused kernel memory/) {
$done = 1;
}
}
if ($count == 0) {
print "No data found in the dmesg. Make sure that 'printk.time=1' and\n";
print "'initcall_debug' are passed on the kernel command line.\n\n";
print "Usage: \n";
print " dmesg | perl scripts/bootgraph.pl > output.svg\n\n";
exit;
}
print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
print "<svg width=\"1000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
my @styles;
$styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
my $mult = 950.0 / ($maxtime - $firsttime);
my $threshold = ($maxtime - $firsttime) / 60.0;
my $stylecounter = 0;
my %rows;
my $rowscount = 1;
while (($key,$value) = each %start) {
my $duration = $end{$key} - $start{$key};
if ($duration >= $threshold) {
my $s, $s2, $e, $y;
$pid = $pids{$key};
if (!defined($rows{$pid})) {
$rows{$pid} = $rowscount;
$rowscount = $rowscount + 1;
}
$s = ($value - $firsttime) * $mult;
$s2 = $s + 6;
$e = ($end{$key} - $firsttime) * $mult;
$w = $e - $s;
$y = $rows{$pid} * 150;
$y2 = $y + 4;
$style = $styles[$stylecounter];
$stylecounter = $stylecounter + 1;
if ($stylecounter > 11) {
$stylecounter = 0;
};
print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
}
}
# print the time line on top
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
my $s2 = ($time - $firsttime) * $mult;
my $tm = int($time * 100) / 100.0;
print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n";
$time = $time + $step;
}
print "</svg>\n";