Commit 74922be1 authored Oct 07, 2007 by Anton Blanchard Committed by Linus Torvalds Oct 07, 2007

Fix timer_stats printout of events/sec



When using /proc/timer_stats on ppc64 I noticed the events/sec field wasnt
accurate.  Sometimes the integer part was incorrect due to rounding (we
werent taking the fractional seconds into consideration).

The fraction part is also wrong, we need to pad the printf statement and
take the bottom three digits of 1000 times the value.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 0c2043ab

kernel/time/timer_stats.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -327,8 +327,9 @@ static int tstats_show(struct seq_file m, void v)
		ms = 1;

		if (events && period.tv_sec)
		seq_printf(m, "%ld total events, %ld.%ld events/sec\n", events,
		events / period.tv_sec, events * 1000 / ms);
		seq_printf(m, "%ld total events, %ld.%03ld events/sec\n",
		events, events * 1000 / ms,
		(events * 1000000 / ms) % 1000);
		else
		seq_printf(m, "%ld total events\n", events);