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Re: CPU power management



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Florian Reitmeir wrote:
> Hi,
> 
> On Mon, 05 Feb 2007, Eddy Petri??or wrote:
> 
>> On a side note, I have found out that FreeBSD is able to bring down the
>> processor speed of a Pentium M processor on a laptop of a friend a LOT
>> lower than what Linux is able to do (200MHz as opposed to 800MHz in Linux).
>>
>> I am wondering if the information is correct. I thought of installing
>> Debian GNU/kFreeBSD but I failed miserably and I don't know when and if
>> I'll try again.
> 
> I know these patches. The 200mhz are only shown in the kernel (in my case
> linux) but the hardware is not capable of that, look for your self into the
> intel datasheets.
> 
> But indeed its possible to "undervolt" the cpu to save power, approx. 10-20%,
> search for the linux-phc patches.
> 
> https://www.dedigentoo.org/trac/linux-phc/

This seems to apply only to older cores. I have a Intel Core 2 Duo
processor. Anybody knows if this is supported? i browsed the forums on
gentoo and found that someone provided baz some info on the Core 2 Duo,
but I don't know what is the current status.

- --
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein
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