On 04/02/2013 05:44 AM, 陳韋任 (Wei-Ren Chen) wrote: > Hi all, > > Sorry for the newbie question. But I am confused on how to make cgroup > work on lxc. When I type `lxc-cgroup`, the command gave me the error > below: > > $ lxc-cgroup -n ubuntu cpu.shares > lxc-cgroup: open /sys/fs/cgroup/cpu//lxc/ubuntu/cpu.shares : No such file or directory > lxc-cgroup: failed to retrieve value of 'cpu.shares' for 'ubuntu' > > The articles I read mostly do this at the beginning: > > $ mkdir /cgroup > $ echo "cgroup /cgroup cgroup defaults 0 0" >> /etc/fstab > $ mount cgroup > > I didn't do that because it seems the system already mount cgroup on > /sys/fs. My question is how to make lxc-cgroup work? Should I create > ubuntu directory under /sys/fs/cgroup/cpu/lxc, then everything works? > Hmm, the lxc* tools are not what virt-manager uses to manage containers, it uses libvirt which has a separate userspace lxc implementation. Libvirt is supposed to handle all the cgroup stuff automagically (well, at least on a modern Fedora system it does). > The other question I believe most relate to the virtual machine > manager. When I edit lxc container through the vmm, there is an CPU > limits option. Does that option work? Because from the top or > /proc/cpuinfo I don't see the limit I set works. > Are you talking about virt-manager? There isn't UI in virt-manager for CPU usage limits, what specifically do you mean? Number of CPUs? I don't think libvirt's lxc impl does anything with that value, though just releases libvirt 1.0.4 appears to do something but I'm not sure what. - Cole _______________________________________________ virt-tools-list mailing list virt-tools-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/virt-tools-list
