Re: [gpm] CPU throttling based on CPU temperature

[Richard Hughes <hughsient gmail com>]

On Wed, 2006-11-29 at 11:26 +0100, Arne John Glenstrup wrote:
> Richard Hughes wrote:
> > On Wed, 2006-11-29 at 09:25 +0100, Arne John Glenstrup wrote:
> 
> >> Is there some way for me to set the CPU throttling based on
> >> CPU temperature?
> > 
> > No - I think you need to do "modprobe cpufreq_conservative" or "modprobe
> > cpufreq_ondemand", and then the frequency will go up with processor
> > load. I'm not sure it's safe to do policy based on CPU temperature.
> 
> I'm not quite sure what you mean by safety here.  Currently,
> I can manually use the cpuspeed daemon of the Fedora cpuspeed
> package to keep my laptop running quietly on AC power, yet
> still allowing high frequency bursts when the processor is cool.
> This does not seem to cause any observable problems.
> 
> Couldn't this feature also be possible via hald-addon-cpufreq
> and GNOME Power Manager?

I don't think it belongs in the UI - it's not a typical use case. Also,
you've got to bear in mind it's difficult to identify and process the
cpu temperature on all architectures, and 100% reliably.

Richard.