Detecting CPU throttling on over temperature

[Daniel O'Connor]

On Wed, 9 Sep 2009, Ian Smith wrote:
>  > > Does anyone know if it is possible to determine if this is the
>  > > case? ie is there a way to be informed if throttling has
>  > > occurred?
>
> Might be easier to hack powerd.c as an existing pretty lightweight
> way of monitoring CPU freq (to log or signal on detected freq lowered
> by throttling, say?) even if you don't need/want it to actually vary
> freq according to load, eg setting idle/busy shift factors to
> 'never/always'?

Hmm, that could work.

It seems odd to me that there is no direct way the BIOS can notify the 
OS it's throttling the CPU though.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
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