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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html