lkml.org 
[lkml]   [2006]   [Jan]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.15-ck1
On Wed, Jan 04, 2006 at 09:33:56PM +0100, Arjan van de Ven wrote:

> > Ah interesting. It needs to be totally idle for a period of time before
> > anything starts to happen at all. After about a minute of doing nothing,
> > it started to fluctuate once a second 20,21,19,20,19,20,18,21,19,20,22 etc..
>
>
> sounds like we need some sort of profiler or benchmarker or at least a
> tool that helps finding out which timers are regularly firing, with the
> aim at either grouping them or trying to reduce their disturbance in
> some form.

And the winner (by a *big* margin) is...

USB.

rh_timer_func() gets called quite a *lot*. (Looks like every 250ms)

cursor_timer_handler() too. *blinky blinky*

X causes lots of hits to it_real_fn()
(incidentally, the power fluctuation only happens when at the
console. When in X, it never happens, so we're probably hitting
this a little too often in that case).

lots of apps cause process_timeout to be hit frequently.

Dave

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-04 22:25    [from the cache]
©2003-2011 Jasper Spaans