Re: 3.2GHz cpus with cpufreq become 2.8GHz

[Krzysztof Oledzki <olel@ans.pl>]

On Thu, 19 Oct 2006, Wes Felter wrote:

> Krzysztof Oledzki wrote:
>
> > Hm... speedstep-centrino on Xeon? AFAIK speedstep-centrino requires "est" 
> > and /proc/cpuinfo does not mention this flag:
> >  fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 
> > clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni 
> > monitor ds_cpl cid cx16 xtpr
>
> Odd; I have a similar processor and it has est and uses the 
> speedstep-centrino driver. But I am using an old kernel (2.6.5) and the flag 
> detection has changed since then.

Anyway, I have just tested speedstep-centrino, but it does not work.

> > BTW: what wrong is with p4-clockmod? I was not able to find any information 
> > that it is broken and should not be used?
>
> It makes the processor slower but only reduces power consumption slightly, 
> making the processor less power-efficient. You probably don't want your 
> processor to be less efficient.

I also tested ACPI Processor P-States driver (X86_ACPI_CPUFREQ), but it 
does not work either.

Any other ideas?

Best regards,

				Krzysztof Olędzki