Messages in this thread | | | Date | Fri, 5 Jun 2009 13:13:16 +0800 | From | Balbir Singh <> | Subject | Re: [RFC] CPU hard limits |
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* Chris Friesen <cfriesen@nortel.com> [2009-06-04 23:09:22]:
> Balbir Singh wrote: > > > But then there is no other way to make a *guarantee*, guarantees come > > at a cost of idling resources, no? Can you show me any other > > combination that will provide the guarantee and without idling the > > system for the specified guarantees? > > The example given was two 10% guaranteed groups and one best-effort > group. Why would this require idling resources? > > If I have a hog in each group, the requirements would be met if the > groups got 33, 33, and 33. (Or 10/10/80, for that matter.) If the > second and third groups go idle, why not let the first group use 100% of > the cpu? > > The only hard restriction is that the sum of the guarantees must be less > than 100%. >
Chris,
I just responded to a variation of this, I think that some of this could be handled during design. I just sent out the email a few minutes ago. Could you look at that and respond.
-- Balbir
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