Messages in this thread |  | | Date | Fri, 12 Oct 2007 07:46:15 +0200 | From | Ingo Molnar <> | Subject | Re: Linux 2.6.23 |
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* Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> ;) I think you snipped the important bit: > > "the peak is terrible but it has virtually no dropoff and performs > better under load than the default 2.6.21 scheduler." (verbatim)
hm, i understood that peak remark to be in reference to FreeBSD's scheduler (which the FreeBSD guys are primarily interested in obviously), not v2.6.21 - but i could be wrong.
In any case, there is indeed a regression with sysbench and a low number of threads, and it's being fixed. The peak got improved visibly in sched-devel:
http://people.redhat.com/mingo/misc/sysbench-sched-devel.jpg
but there is still some peak regression left, i'm testing a patch for that.
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