Re: what is throttling?

["Ville Syrjälä" <syrjala-ORSVBvAovxo@public.gmane.org>]

On Wed, Oct 06, 2004 at 01:49:35PM +0200, Andi Kleen wrote:
> On Wed, Oct 06, 2004 at 11:04:08AM +0200, Keld J?rn Simonsen wrote:
> > Hi!
> > 
> > I have googled around for a couple of hours to find out precisely what
> > throttling means. I did it before and found some useful information, but
> > this time I did not find the relevant data.
> > 
> > I would like to find out, which state precisely that the CPU enters when
> > throttling. Maybe it is different from CPU to CPU. Specifically I would
> > like to know if the CPU is completely powered off, my recollection of
> > some information I have seen earlier is that this may be the case.
> 
> On Intel CPUs Throttling means that the CPU skips each other
> (or more) clock. This is quite slow, but only done to get 
> the temperature down.
> 
> AMD CPUs don't have it afaik.

My AMD system (Duron 1300 + Abit KT7) can be throttled by 50%. In reality 
it feels more like 90% since even a temperature/fan monitor applet eats 
15% of my CPU when throttled. I haven't seen any benefits from throttling 
though.

-- 
Ville Syrjälä
syrjala-ORSVBvAovxo@public.gmane.org
http://www.sci.fi/~syrjala/


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