Messages in this thread | | | Subject | Re: CFS scheduler OLTP perforamnce | From | Peter Zijlstra <> | Date | Fri, 12 Dec 2008 15:22:15 +0100 |
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On Fri, 2008-12-12 at 15:15 +0100, Andi Kleen wrote: > Peter Zijlstra <peterz@infradead.org> writes: > >> > >> It seems that in this case renice to higher priority with CFS did not > >> reduce scheduling latency as well as SCHED_RR. > > > > Is there a question in this email? > > The question is how to make nice perform as well as SCHED_RR.
Depending on the circumstances, you can't - SCHED_RR doesn't bother with fairness.
That is not to say there is no room for improvement, but that really needs more information.
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