On Tue, 2007-09-25 at 08:45 +0200, Ingo Molnar wrote:
> * Daniel Walker <[email protected]> wrote:
>
> > On Mon, 2007-09-24 at 23:45 +0200, Ingo Molnar wrote:
> > > Lots of scheduler updates in the past few days, done by many people.
> > > Most importantly, the SMP latency problems reported and debugged by
> > > Mike
> > > Galbraith should be fixed for good now.
> >
> > Does this have anything to do with idle balancing ? I noticed some
> > fairly large latencies in that code in 2.6.23-rc's ..
>
> any measurements?
Yes, I made this a while ago,
ftp://source.mvista.com/pub/dwalker/misc/long-cfs-load-balance-trace.txt
This was with PREEMPT_RT on btw, so it's not the most recent kernel. I
was able to reproduce it in all the -rc's I tried.
Daniel
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