Re: is it really better speedstep-ich vs. p4-clockmod cpufreq driver?

From: Rutger Nijlunsing
Date: Sun Jul 25 2004 - 11:56:44 EST


On Fri, Jul 23, 2004 at 08:54:39PM +0200, Riccardo Vestrini wrote:
> it seems that speedstep-ich and acpi cpufreq driver have only two usable
> clock frequencies, while p4-clockmod has eight
> my cpu is: Intel Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz stepping 09
>
[snip]
>
> i do not know what driver is supposed to be better and why speedstep-ich
> driver has only two frequencies

p4-clockmod is not really a cpufreq driver: it does not change the
frequency. The only function is to have 'idle-cycles' to cool down the
processor during intensive CPU programs: this is what the processor
does when it gets too hot.

The speedstep driver _does_ change the frequency (and/or voltage) and
gives other advantages like less power consumption.

So use speedstep.

--
Rutger Nijlunsing ---------------------------- rutger ed tux tmfweb nl
never attribute to a conspiracy which can be explained by incompetence
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