Dave Jones wrote:
On Mon, Mar 19, 2007 at 12:31:55PM +0000, Richard Hughes wrote:
> On Mon, 2007-03-19 at 12:29 +0100, Benny Amorsen wrote:
> > JB> cpuspeed is very useful, especially in the case of a laptop which
> > JB> several people use as their desktop. Your narrow definition of a
> > JB> desktop is perhaps too limiting.
> >
> > cpuspeed really isn't optional on modern desktop machines either.
> > Rahul Sundaram may have lots of machines with fixed clockspeeds, but
> > that is no reason to not support newer stuff.
>
> GNOME Power Manager can control CPU speed with policy set in the
> session, usually saving power more aggressively than cpuspeed. It also
> has the benefit of using a HAL addon rather than a system service, which
> is only loaded if the machine is frequency scale supported.
It does that by checking for existance of files in sysfs doesn't it?
If so, nuking the cpuspeed service will break that, as the modules won't
get loaded, and the sysfs files won't exist.
I think it depends on the frequency scaling driver. If I recall
correctly, you get nothing in the acpi-cpufreq case, but in the
powernow-k8 case, you still have most of the sysfs bits present
(including access to the performance and userspace governors).
--
Jarod Wilson
jwilson@xxxxxxxxxx
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