Building cpufreq modules into F16 kernel is it right or wrong?

Simo Sorce simo at
Tue Oct 18 12:02:41 UTC 2011

On Tue, 2011-10-18 at 07:57 -0400, Simo Sorce wrote:
> On Tue, 2011-10-18 at 12:49 +0200, Vratislav Podzimek wrote:
> > On Mon, 2011-10-17 at 22:40 +0300, alekcejk at wrote:
> > > Frequency scaling have negative effects for me
> > > so I need to have it disabled in BIOS.
> > What negative effects does frequency scaling have for you when using
> > governor performance?
> Dunno for alexey, but for me it causes my machine to go in thermal
> shutdown quite soon.
> Even switching to ondemand doesn't work as the machine keeps running at
> 100% speed until the temp is too high and the ACPI commands to shutdown
> because the CPU is too hot.
> I now have a script I run that monitors the temperature and switches
> between ondemand and powersave (runs at 800Mhz fixed frequency) states,
> so that if temp is too high it slows everything down untill temp comes
> back down to a cool 60C.
> Even with my script that does just simple polling every few seconds,
> sometimes I still suffer from thermal shutdwon due to the fact the
> kernel is too dumb to understand it has to trhottle when temp is too
> high.
> This didn't happen on F15 (samba hardware) so I guess we will have happy

I meant "same" here of course ^^^^ :-)

> F16 users very soon :-/
> Simo.
> -- 
> Simo Sorce * Red Hat, Inc * New York

Simo Sorce * Red Hat, Inc * New York

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