Messages in this thread | | | Date | Wed, 25 Jul 2007 14:38:54 -0600 | From | "Chris Friesen" <> | Subject | Re: [RFC] scheduler: improve SMP fairness in CFS |
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Ingo Molnar wrote:
> the 3s is the problem: change that to 60s! We no way want to > over-migrate for SMP fairness, the change i did gives us reasonable > long-term SMP fairness without the need for high-rate rebalancing.
Actually, I do have requirements from our engineering guys for short-term fairness. They'd actually like decent fairness over even shorter intervals...1 second would be nice, 2 is acceptable.
They are willing to trade off random peak performance for predictability.
Chris
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