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Home > Archive > Debian Developers > November 2006 > Bug#396117: ITP: cpufreq-detect -- detect CPU frequency control driver
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Bug#396117: ITP: cpufreq-detect -- detect CPU frequency control driver
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| Chris Hanson 2006-10-30, 1:19 pm |
| Per Olofsson wrote:
> Hi,
>
> Marco d'Itri:
>
> Chris, would you accept the cpufreq-detect script into powermgmt-base?
Probably yes, but I'd like to see it before I decide.
Does this have to make it into etch?
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| Peter Palfrader 2006-10-30, 7:31 pm |
| On Mon, 30 Oct 2006, Per Olofsson wrote:
> Chris Hanson:
>
> Attached. I will probably change a few things though, it should
> probably by default try to load the module instead of merely
> outputting it.
How come it never outputs p4_clockmod? I use that happily on several
different machines.
Peter
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| Matthew Garrett 2006-10-30, 7:31 pm |
| Peter Palfrader <weasel@debian.org> wrote:
> How come it never outputs p4_clockmod? I use that happily on several
> different machines.
In most workloads, p4_clockmod will have a negligable effect on power
consumption and has a sufficiently high latency that it creates a
noticable reduction in interactive performance. When I worked on that
script originally, I decided that anyone who wanted that could just add
p4_clockmod to /etc/modules.
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Matthew Garrett | mjg59-chiark.mail.debian.devel@srcf.ucam.org
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| Per Olofsson 2006-10-31, 7:23 am |
| Peter Palfrader:
> How come it never outputs p4_clockmod? I use that happily on several
> different machines.
It's disabled in Ubuntu with the following comment:
# Disabled for now - the latency tends to be bad enough to make it
# fairly pointless.
# echo "FREQDRIVER=p4-clockmod" >/etc/default/powernowd
# to override this
Maybe they're wrong?
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Pelle
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| Mattia Dongili 2006-11-01, 7:23 am |
| On Wed, Nov 01, 2006 at 10:07:24AM +0100, Brice Goglin wrote:
> Anthony DeRobertis wrote:
>
>
> p4-clockmod is not that interesting because it only does throttling
> (divides the frequency only) while the important thing to do to reduce
Yes, p4-clockmod is mostly useless for power saving but it helps
reducing the processor temperature. And this is the only driver working
for my p4 desktop.
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mattia
:wq!
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