Re: 2.6.15-ck1

[Andi Kleen]

Arjan van de Ven <arjan@xxxxxxxxxxxxx> writes:


> sounds like we need some sort of profiler or benchmarker or at least a
> tool that helps finding out which timers are regularly firing, with the
> aim at either grouping them or trying to reduce their disturbance in
> some form.

I did one some time ago for my own noidletick patch. Can probably dig
it out again. It just profiled which timers interrupted idle.

Executive summary for my laptop: worst was the keyboard driver (it ran
some polling driver to work around some hardware bug, but fired very
often) , followed by the KDE desktop (should be mostly
fixed now, I complained) and the X server and some random kernel 
drivers.

I haven't checked recently if keyboard has been fixed by now.

-Andi

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