[mirror_ubuntu-bionic-kernel.git] / scripts / bootgraph.pl

#!/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 @rows;
my %start, %end, %row;
my $done = 0;
my $rowcount = 0;
my $maxtime = 0;
my $count = 0;
while (<>) {
	my $line = $_;
	if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z\_]+)\+/) {
		my $func = $2;
		if ($done == 0) {
			$start{$func} = $1;
		}
		$row{$func} = 1;
		if ($line =~ /\@ ([0-9]+)/) {
			my $pid = $1;
			if (!defined($rows[$pid])) {
				$rowcount = $rowcount + 1;
				$rows[$pid] = $rowcount;
			}
			$row{$func} = $rows[$pid];
		}
		$count = $count + 1;
	}

	if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z\_]+)\+.*returned/) {
		if ($done == 0) {
			$end{$2} = $1;
			$maxtime = $1;
		}
	}
	if ($line =~ /Write protecting the/) {
		$done = 1;
	}
}

if ($count == 0) {
	print "No data found in the dmesg. Make sure CONFIG_PRINTK_TIME is enabled and\n";
	print "that initcall_debug is 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;
my $threshold = 0.0500 / $maxtime;
my $stylecounter = 0;
while (($key,$value) = each %start) {
	my $duration = $end{$key} - $start{$key};

	if ($duration >= $threshold) {
		my $s, $s2, $e, $y;
		$s = $value * $mult;
		$s2 = $s + 6;
		$e = $end{$key} * $mult;
		$w = $e - $s;

		$y = $row{$key} * 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 $time = 0.0;
while ($time < $maxtime) {
	my $s2 = $time * $mult;
	print "<text transform=\"translate($s2,89) rotate(90)\">$time</text>\n";
	$time = $time + 0.1;
}

print "</svg>\n";
Commit	Line	Data
aa5d9151 AV	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
	40	my @rows;
	41	my %start, %end, %row;
	42	my $done = 0;
	43	my $rowcount = 0;
	44	my $maxtime = 0;
	45	my $count = 0;
	46	while (<>) {
	47	my $line = $_;
	48	if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z\_]+)\+/) {
	49	my $func = $2;
	50	if ($done == 0) {
	51	$start{$func} = $1;
	52	}
	53	$row{$func} = 1;
	54	if ($line =~ /\@ ([0-9]+)/) {
	55	my $pid = $1;
	56	if (!defined($rows[$pid])) {
	57	$rowcount = $rowcount + 1;
	58	$rows[$pid] = $rowcount;
	59	}
	60	$row{$func} = $rows[$pid];
	61	}
	62	$count = $count + 1;
	63	}
	64
65	if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z\_]+)\+.*returned/) {
66	if ($done == 0) {
67	$end{$2} = $1;
68	$maxtime = $1;
69	}
70	}
71	if ($line =~ /Write protecting the/) {
72	$done = 1;
73	}
74	}
75
76	if ($count == 0) {
77	print "No data found in the dmesg. Make sure CONFIG_PRINTK_TIME is enabled and\n";
78	print "that initcall_debug is passed on the kernel command line.\n\n";
79	print "Usage: \n";
80	print " dmesg \| perl scripts/bootgraph.pl > output.svg\n\n";
81	exit;
82	}
83
84	print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
85	print "<svg width=\"1000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
86
87	my @styles;
88
89	$styles[0] = "fill:rgb(0,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
90	$styles[1] = "fill:rgb(0,255,0);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
91	$styles[2] = "fill:rgb(255,0,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
92	$styles[3] = "fill:rgb(255,255,20);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
93	$styles[4] = "fill:rgb(255,0,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
94	$styles[5] = "fill:rgb(0,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
95	$styles[6] = "fill:rgb(0,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
96	$styles[7] = "fill:rgb(0,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
97	$styles[8] = "fill:rgb(255,0,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
98	$styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
99	$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
100	$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
101
102	my $mult = 950.0 / $maxtime;
103	my $threshold = 0.0500 / $maxtime;
104	my $stylecounter = 0;
105	while (($key,$value) = each %start) {
106	my $duration = $end{$key} - $start{$key};
107
108	if ($duration >= $threshold) {
109	my $s, $s2, $e, $y;
110	$s = $value * $mult;
111	$s2 = $s + 6;
112	$e = $end{$key} * $mult;
113	$w = $e - $s;
114
115	$y = $row{$key} * 150;
116	$y2 = $y + 4;
117
118	$style = $styles[$stylecounter];
119	$stylecounter = $stylecounter + 1;
120	if ($stylecounter > 11) {
121	$stylecounter = 0;
122	};
123
124	print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
125	print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
126	}
127	}
128
129
130	# print the time line on top
131	my $time = 0.0;
132	while ($time < $maxtime) {
133	my $s2 = $time * $mult;
134	print "<text transform=\"translate($s2,89) rotate(90)\">$time</text>\n";
135	$time = $time + 0.1;
136	}
137
138	print "</svg>\n";