# dmesg | perl scripts/bootgraph.pl > output.svg
#
-my %start, %end;
+use strict;
+
+my %start;
+my %end;
my $done = 0;
my $maxtime = 0;
my $firsttime = 100;
while (<>) {
my $line = $_;
- if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z\_]+)\+/) {
+ if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z0-9\_]+)\+/) {
my $func = $2;
if ($done == 0) {
$start{$func} = $1;
$count = $count + 1;
}
- if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z\_]+)\+.*returned/) {
+ if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
if ($done == 0) {
$end{$2} = $1;
$maxtime = $1;
}
if ($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 "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;
my $stylecounter = 0;
my %rows;
my $rowscount = 1;
-while (($key,$value) = each %start) {
+my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
+my $key;
+foreach $key (@initcalls) {
my $duration = $end{$key} - $start{$key};
if ($duration >= $threshold) {
- my $s, $s2, $e, $y;
- $s = ($value - $firsttime) * $mult;
+ my ($s, $s2, $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;
$e = ($end{$key} - $firsttime) * $mult;
$w = $e - $s;
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
- my $s2 = ($time - $firsttime) * $mult;
+ my $s3 = ($time - $firsttime) * $mult;
my $tm = int($time * 100) / 100.0;
- print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n";
+ print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
$time = $time + $step;
}