• Thomas Gleixner's avatar
    treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391 · c2e30119
    Thomas Gleixner authored
    
    Based on 1 normalized pattern(s):
    
      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
    
    extracted by the scancode license scanner the SPDX license identifier
    
      GPL-2.0-only
    
    has been chosen to replace the boilerplate/reference in 1 file(s).
    Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Reviewed-by: Richard Fontana <rfontana@redhat....
    c2e30119
bootgraph.pl 5.64 KB
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0-only

# Copyright 2008, Intel Corporation
#
# This file is part of the Linux kernel
#
# 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
#

use strict;
use Getopt::Long;
my $header = 0;

sub help {
	my $text = << "EOM";
Usage:
1) dmesg | perl scripts/bootgraph.pl [OPTION] > output.svg
2) perl scripts/bootgraph.pl -h

Options:
	-header	Insert kernel version and date
EOM
	my $std=shift;
	if ($std == 1) {
		print STDERR $text;
	} else {
		print $text;
	}
	exit;
}

GetOptions(
	'h|help'	=>\&help,
	'header'	=>\$header
);

my %start;
my %end;
my %type;
my $done = 0;
my $maxtime = 0;
my $firsttime = 99999;
my $count = 0;
my %pids;
my %pidctr;

my $headerstep = 20;
my $xheader = 15;
my $yheader = 25;
my $cyheader = 0;

while (<>) {
	my $line = $_;
	if ($line =~ /([0-9\.]+)\] calling  ([a-zA-Z0-9\_\.]+)\+/) {
		my $func = $2;
		if ($done == 0) {
			$start{$func} = $1;
			$type{$func} = 0;
			if ($1 < $firsttime) {
				$firsttime = $1;
			}
		}
		if ($line =~ /\@ ([0-9]+)/) {
			$pids{$func} = $1;
		}
		$count = $count + 1;
	}

	if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
		my $pid = $2;
		my $func;
		if (!defined($pidctr{$pid})) {
			$func = "wait_" . $pid . "_1";
			$pidctr{$pid} = 1;
		} else {
			$pidctr{$pid} = $pidctr{$pid} + 1;
			$func = "wait_" . $pid . "_" . $pidctr{$pid};
		}
		if ($done == 0) {
			$start{$func} = $1;
			$type{$func} = 1;
			if ($1 < $firsttime) {
				$firsttime = $1;
			}
		}
		$pids{$func} = $pid;
		$count = $count + 1;
	}

	if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_\.]+)\+.*returned/) {
		if ($done == 0) {
			$end{$2} = $1;
			$maxtime = $1;
		}
	}

	if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
		my $pid = $2;
		my $func =  "wait_" . $pid . "_" . $pidctr{$pid};
		$end{$func} = $1;
		$maxtime = $1;
	}
	if ($line =~ /Write protecting the/) {
		$done = 1;
	}
	if ($line =~ /Freeing unused kernel memory/) {
		$done = 1;
	}
}

if ($count == 0) {
    print STDERR <<END;
No data found in the dmesg. Make sure that 'printk.time=1' and
'initcall_debug' are passed on the kernel command line.
END
	help(1);
    exit 1;
}

print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";


if ($header) {
	my $version = `uname -a`;
	my $date = `date`;
	print "<text transform=\"translate($xheader,$yheader)\">Kernel version: $version</text>\n";
	$cyheader = $yheader+$headerstep;
	print "<text transform=\"translate($xheader,$cyheader)\">Date: $date</text>\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 $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";

my $mult = 1950.0 / ($maxtime - $firsttime);
my $threshold2 = ($maxtime - $firsttime) / 120.0;
my $threshold = $threshold2/10;
my $stylecounter = 0;
my %rows;
my $rowscount = 1;
my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);

foreach my $key (@initcalls) {
	my $duration = $end{$key} - $start{$key};

	if ($duration >= $threshold) {
		my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
		my $pid = $pids{$key};

		if (!defined($rows{$pid})) {
			$rows{$pid} = $rowscount;
			$rowscount = $rowscount + 1;
		}
		$s = ($start{$key} - $firsttime) * $mult;
		$s2 = $s + 6;
		$s3 = $s + 1;
		$e = ($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;
		};

		if ($type{$key} == 1) {
			$y = $y + 15;
			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
		} else {
			print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
			if ($duration >= $threshold2) {
				print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
			} else {
				print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
			}
		}
	}
}


# print the time line on top
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
	my $s3 = ($time - $firsttime) * $mult;
	my $tm = int($time * 100) / 100.0;
	print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
	$time = $time + $step;
}

print "</svg>\n";