cpu frequency scaling

[Brian Gaynor]

On Mon, 2005-08-01 at 19:58 -0500, Jeff Vian wrote:
> On Mon, 2005-08-01 at 15:21 -0700, Josh Coffman wrote:
> > Hi all,
> > 
> >    Can anyone post some info or link on configuring
> > the cpuspeed daemon that comes with FC4. It's working,
> > but only with two steps: 50% and 100%. .. My cpu says
> > 8 steps are available, but I don't know what
> > frequencies I can configure. Also, when I try to edit
> > available_scaling_frequencies, I get an error that the
> > file is READONLY. (I tried echo -n, vi, and gedit all
> > as root.)
> > 
> The file is likely marked as read-only for the owner (root).
> With vi that can be overcome by doing a forced write ( :w! ).
> 
> >    I'd also like to know more about the governor
> > modes. I was getting help setting up powernowd, but I
> > could quite get it to work. (Mostly because I'm a
> > noob, I'm sure.)

Where are you checking to see how many steps are available? The
"stepping" listed under /proc/cpuinfo refers to the manufacturing
revision of the cpu, not to the number of power states. Try looking
at /proc/acpi/processor/CPU0/throttling instead.

-- 
Brian Gaynor
www.pmccorp.com
FC4/Linux on DELL Inspiron 5160 3.0Ghz 
canis 10:45:14 up 2:17, 2 users, 
load average: 0.10, 0.15, 0.17