Re: jitter test scalability problem - my theory

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On Fri, 2011-07-29 at 16:35 +0200, Peter Zijlstra wrote:
> On Fri, 2011-07-29 at 16:31 +0200, Mike Galbraith wrote:
> > So it seems push/pull logic _may_ be my scalability problem.  Even
> > though there's nothing that can be pushed/pulled, it's hammering a few
> > locks from many cores, so cores perturb each other enough despite
> > isolation, to fail once enough cores are active.
> > 
> > Does that look like a reasonable explanation for my jitter increase? 
> 
> It is, Steve actually had patches for that..

Thanks for confirming. 

I know a guy (me) who would _love_ to test them :)  Diagnosing is one
thing, figuring out how to fix such an issue is quite another matter.

	-Mike

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