CPUs with variable speed clocks ?

[Paul Lussier]

Has anyone here encountered such a beast?

I ran into a discussion on another mailing list, and that was the
first I had heard about CPUs with variable speed clocks.  Does anyone
know how you muck with these under Linux?  I would guess that there's
some kernel parameter you can toggle to (en|dis)able this feature.
Would there be a /proc thingy you can 'echo 1' into like some of the
iptables features as well?
-- 
Seeya,
Paul