On Wed, 6 Jul 2011 10:18:05 +0900, Taku Izumi <izumi.taku@xxxxxxxxxxxxxx> wrote: > > > Nikunj is correct here. We only need to ensure that the bandwidth is > > distributed equally between all of the cpus. This can be accomplished > > internally by creating a cgroup for each vcpu and ensuring that > > 'cpu.share' is the same for each vcpu cgroup. > > > When taken together, virsh I/F and domain XML schema > are the following: > > #virsh schedinfo VM --set cpuperiod=100000 --config > #virsh schedinfo VM --set cpuquota=50000 --config > > .. > <vcpu>4</vcpu> > <cputune> > <period>100000</period> > <quota>50000</quota> > </cputune> > > When specified above, the qemu driver creates cgroup for > each vcpus and specified as follows: > > The quota value is divided by the number of vcpus. > vcpu#: (quota/period) > vcpu0: 12500/100000 > vcpu1: 12500/100000 > vcpu2: 12500/100000 > vcpu3: 12500/100000 > I am with you till this point. This is what I was visualizing the interface as, thanks for putting it. > But, these values cannot be confirmed form the domain > XML file. Do not understand what do you mean here. Regards, Nikunj -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list