Kazehakase waking up CPU too frequently

[Mike Hommey]

On Sun, Jun 03, 2007 at 11:13:34AM -0700, Arjan van de Ven <arjan at linux.intel.com> wrote:
> Frank Bauer wrote:
> >Hi,
> >
> >I just installed powertop 1.5 on my Debian Etch laptop (+kernel 2.6.21) 
> >and found out
> >that idle kazehakase is responsible for most wakeups (100 per second) on 
> >this box:
> >
> >  47,6% ( 99,8)        kazehakase : do_nanosleep (hrtimer_wakeup)
> >
> >Would it be possible to optimize the idle behaviour to conserve some power?
> >
> 
> I just tried kazehakase on my FC7 machine and it doesn't show this 
> behavior... so either mine is newer and it got fixed already, or yours 
> is newer and it got broken, or... yours is built very different....

I think it pretty much depends on what the page is doing. I notice some
high amount of wakeup with epiphany when there are javascript timers on
a web page.

Mike