Re: [patch] voluntary-preempt-2.6.9-rc1-bk12-R5

[Ingo Molnar]

* Lee Revell <rlrevell@xxxxxxxxxxx> wrote:

> http://krustophenia.net/testresults.php?dataset=2.6.9-rc1-R0#/var/www/2.6.9-rc1-R0/foo.hist
> 
> I find the two smaller spikes to either side of the central spike
> really odd.  These showed up in my jackd tests too, I had attributed
> them to some measurement artifact, but they seem real.  Maybe a
> rounding bug, or some kind of weird cache effect?

interesting - the histograms are pretty symmetric around the center.
E.g. the exponential foo.hist2 diagram is way too symmetric around 50
usecs! What precisely is being measured?

	Ingo
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