On Wed, Dec 01, 2004 at 09:39:39AM +1100, Benjamin Herrenschmidt wrote: > On Tue, 2004-11-30 at 14:02 +0100, Richard Hult wrote: > > Timo Reimerdes wrote: > > > Could is be something related to hard-drive activity? Or is the > > > processor just doing more work? did the powernowd change? > > > > This is without running any frequency scaling at all (no powernod, > > cpydyn, or cpufreqd), and also without spinning down the hard drive. > > It's a bit of a mystery to me, I looked through the changelog for the > > kernel between 2.6.7 and 2.6.8 and didn't find anything obviously > > related to something like this. > > Note that a good way to lower the power consumption of a Mac laptop is > to reduce HZ back from 1000 to 100 in include/asm-ppc/param.h
As it isn't standard set to 100, there must be some side-effects, could you describe them? Regards, Wouter
