Messages in this thread |  | | Date | Fri, 05 Jun 2009 08:54:14 -0600 | From | "Chris Friesen" <> | Subject | Re: [RFC] CPU hard limits |
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Avi Kivity wrote:
> I am selling virtual private servers. A 10% cpu share costs $x/month, > and I guarantee you'll get that 10%, or your money back. On the other > hand, I want to limit cpu usage to that 10% (maybe a little more) so > people don't buy 10% shares and use 100% on my underutilized servers. > If they want 100%, let them pay for 100%.
What about taking a page from the networking folks and specifying cpu like a networking SLA?
Something like "group A is guaranteed X percent (or share) of the cpu, but it is allowed to burst up to Y percent for Z milliseconds"
If a rule of this form was the first-class citizen, it would provide both guarantees, limits, and flexible behaviour.
Chris
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