Messages in this thread | | | Date | Sat, 26 Jan 2013 13:05:09 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH -v4 0/5] x86,smp: make ticket spinlock proportional backoff w/ auto tuning |
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* Mike Galbraith <bitbucket@online.de> wrote:
> On Fri, 2013-01-25 at 14:05 -0500, Rik van Riel wrote: > > > The performance issue observed with AIM7 is still a mystery. > > Hm. AIM7 mystery _may_ be the same crud I see on a 4 node 40 > core box. Stock scheduler knobs are too preempt happy, produce > unstable results. I twiddle them as below to stabilize > results. > > I'm testing a load balancing series from Alex Shi with AIM7 > and whatnot, added your series on top of it and retested. > What I see is improvement.
Since we want both series that's good news, agreed?
Thanks,
Ingo
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