> We had some annoying problems with performance when using
> cpufrequency scaling on non-mobile systems in the past.

Maybe that was in the P4 age, with powernowd? That I could understand.

I run all my reasonably modern systems (mostly Athlon*/Phenom/Opteron, with a
few core2duo and xeon based ones) with the ondemand governor and haven't really
noticed anything wrong. (With the possible exception of the clock in virtualbox
being waaaaaaaaaay slow on one system, but I'm not yet sure that has anything to
do with cpu frequency scaling at all.)

Just my 2 cents.

Andras