On Fri, Jun 5, 2009 at 11:33 AM, Avi Kivity <avi@xxxxxxxxxx> wrote: > Bharata B Rao wrote: >>> >>> Another way is to place the 8 groups in a container group, and limit >>> that to 80%. But that doesn't work if I want to provide guarantees to >>> several groups. >>> >> >> Hmm why not ? Reduce the guarantee of the container group and provide >> the same to additional groups ? >> > > This method produces suboptimal results: > > $ cgroup-limits 10 10 0 > [50.0, 50.0, 40.0] > > I want to provide two 10% guaranteed groups and one best-effort group. > Using the limits method, no group can now use more than 50% of the > resources. However, having the first group use 90% of the resources does > not violate any guarantees, but it not allowed by the solution. > How, it works out fine in my calculation 50 + 40 for G2 and G3, make sure that G1 gets 10%, since others are limited to 90% 50 + 40 for G1 and G3, make sure that G2 gets 10%, since others are limited to 90% 50 + 50 for G1 and G2, make sure that G3 gets 0%, since others are limited to 100% Now if we really have zeros, I would recommend using cgroup-limits 10 10 and you'll see that you'll get 90, 90 as output. Adding zeros to the calcuation is not recommended. Does that help? Balbir -- 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
