FAO Ubuntu team : feature request : CPU frequency control ?

[Vincent Trouilliez]

Le mardi 07 décembre 2004 à 22:16 +1100, David Collett a écrit :
> Not necessarily...
> Someone has produced a cpufreq kernel driver for the nforce2
> motherboard chipset. It allows frequency scaling my modifying the FSB
> rather than the CPU multiplier, so it works with regular desktop
> CPU's. 

Too bad, my motherboard has the nforce chipset not nforce2... :o(

Anyway, I have decided on getting a bi-cpu motherboard in a few months.
What I need to know, as I said, is what model of DESKTOP CPUs feature
frequency/throttling management. Even used, motherboard and CPUs still
cost money, so I would rather not spend money on CPU's, only to find out
that they are not suitable ! :-/

And now that I have brought the subject, maybe someone at Ubuntu can
tell me, does Ubuntu work on bi-cpu motherboards ? Is it just a matter
of getting a kernel that handles it ? Or does any Linux Kernel manage
multiple CPUs ? Are there any problems that may be specific to this set
up, as far as installing and running Ubuntu is concerned ?

Is there any particular brand/manufaturer that are recommended, or best
avoided ? What boards enjoy the best hardware/driver support with
Ubuntu/Linux ? Intel ? MSI ? Gigabyte ? Asus ??


Thanks for any help/info.


Regards,


Vince


> (the nforce2 FSB is aparently asyncronous to the PCI/AGP/RAM
> clocks so this can be done on the fly quite safely) Not sure if/when
> this will make it into the stock kernel but it is a patch thats
> floating around (google cpufreq-nforce2). Also, I'm not sure if it
> changes core voltage (i suspect not) so perhaps the cooling benefit is
> not as great as the cpufreq drivers for mobile CPU's???
> 
> Dave