Commit 06d1cd26 authored Oct 14, 2008 by Alan Jenkins Committed by Ingo Molnar Oct 22, 2008

tracing/fastboot: fix row order in bootgraph.pl



When bootgraph.pl parses a file, it gives one row for each initcall's
pid.  But they are displayed in random (perl hash) order.  Let's
sort the pids by the start time of their first initcall instead.

This helps trace module initcalls, where each has a separate pid.
bootgraph.pl will show module initcalls during the initramfs; it may
also be adapted to show subsequent module initcalls.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 2a813f8c

scripts/bootgraph.pl

+3 −3

Original line number	Diff line number	Diff line
		@@ -108,9 +108,9 @@ my $threshold = ($maxtime - $firsttime) / 60.0;
		my $stylecounter = 0;
		my %rows;
		my $rowscount = 1;
		my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
		my $key;
		my $value;
		while (($key,$value) = each %start) {
		foreach $key (@initcalls) {
		my $duration = $end{$key} - $start{$key};

		if ($duration >= $threshold) {
		@@ -121,7 +121,7 @@ while (($key,$value) = each %start) {
		$rows{$pid} = $rowscount;
		$rowscount = $rowscount + 1;
		}
		$s = ($value - $firsttime) * $mult;
		$s = ($start{$key} - $firsttime) * $mult;
		$s2 = $s + 6;
		$e = ($end{$key} - $firsttime) * $mult;
		$w = $e - $s;

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