[linux-audio-user] kernel 2.6.20.1 & rt-patch 2.6.20-rt8

Robin Gareus robin at gareus.org
Wed Mar 7 14:41:08 EST 2007


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Lee Revell wrote:
> On 3/7/07, Robin Gareus <robin at gareus.org> 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.

cool. I am already 10 mins into the compiling a tickless kernel (branch
prediction pipelined it) and will report back if there's trouble!

Robin
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