FreeBSD & SpeedStep

[Bruno Ducrot]

On Fri, Jun 11, 2004 at 11:01:31AM +0200, Frank Altpeter wrote:
> 
> Hello!
> 
> Bruno Ducrot wrote on 2004-06-11 03:25:07 +0200:
> > On Thu, Jun 10, 2004 at 11:47:01PM +0200, Eduardo Mínguez Pérez wrote:
> > > Hi!
> > > This is my first mail to the list and I want to sorry for my english
> > > (I'm spanish ;D)
> > > My question is... Is speedstep supported by FreeBSD? My notebook is a p4
> > > mobile (1,7 Ghz)
> > 
> > Not yet.
> This answer only applies AFAIK to 4.x FreeBSD versions. 5.2-CURRENT
> does indeed support speedstep technology.

No.

> 
> # dmesg | grep step
> acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%

The processor will be throttled, so frequency will change somehow.  But
the voltage (which is the key to speedstep technology) will be the same.

Cheers,

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.