On Tue, 2007-09-25 at 08:45 +0200, Ingo Molnar wrote:
quoted text
> * Daniel Walker <dwalker@mvista.com> 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

-
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/