[libvirt-users] Libvirt LXC vcpu doesn't seem to work

[Dave Riches]

Hi,

I seem to have a problem when creating a LXC container through virsh.

While virsh -c lxc:/// dominfo <container> shows up (for example) 2
VCPUs as defined, if I run a CPU intensive task (such as stress --cpu
10) it will max out 10 CPU cores on the host.

If I echo "0" > /cgroup/cpuset/libvirt/lxc/<domain>/cpuset.cpus

then the container is properly confined to just one CPU core.
Subsequently, running stress --cpu 10 only one core on the host is maxed
out.

Does anyone know what syntax/config I'm missing, while installing the
lxc container via virsh..to ensure that the VCPUs are restricted to the
number defined?

Thanks in advance