Building cpufreq modules into F16 kernel is it right or wrong?

[Vratislav Podzimek]

On Mon, 2011-10-17 at 22:40 +0300, alekcejk at googlemail.com wrote:
> Frequency scaling have negative effects for me
> so I need to have it disabled in BIOS.
What negative effects does frequency scaling have for you when using
governor performance?

--
Vratislav Podzimek

> 
> I think that this is not BIOS option broken
> but broken kernel with built-in cpufreq modules.
> If hardware supports disabling frequency scaling
> then should be possibility to do this.
> BIOS have such possibility, Fedora kernels before F16
> also makes it possible to use or not to use scaling.
> But with F16+ kernels this becomes impossible.
> 
> Adam Jackson wrote:
> 
> > On Mon, 2011-10-17 at 21:54 +0300, alekcejk at googlemail.com wrote:
> > 
> >> But this assumption was wrong for my system which have BIOS option
> >> for disabling CPU frequency scaling (SpeedStep).
> >> 
> >> If SpeedStep is enabled in BIOS then kernel uses acpi-cpufreq built-in module
> >> but if I will disable frequency scaling in BIOS kernel still loads cpufreq module
> >> but p4-clockmod instead of acpi-cpufreq.
> > 
> > Why would you choose broken BIOS options?
> > 
> > - ajax
> -- 
> Alexey Kurov <nucleo at fedoraproject.org>
>