On 3/7/07, Robin Gareus <robin@xxxxxxxxxx> wrote:
PS. can anyone shed some light on the CONFIG_NO_HZ option - seems like it saves quite some power. Does it affect realtime performance. can it be disabled at runtime?
Should not affect realtime performance - it was judged stable enough for mainline and I've seen no reports on LKML of it causing problems.
PPS. i've usually disabled freq. scaling during audio-work as there were x-runs when the cpu speed changed. this does no longer seem to be the case.. is it still a good habit to shut down powernowd ?
JACK was fixed to use gettimeofday() as the clock source so disabling frequency scaling should no longer be needed. Lee