5

KVM - Multiple vcpu not pinning to physical cpu

view full story
linux-howto

http://forums.fedoraforum.org – Hi all, I'm using KVM on a 32-core Xeon machine but I'm having an issue where the virtual cpus don't pin to the physical ones. I'm not sure if I'm making a fundamental mistake but the setup of the kvm seems to be very straight-forward using virt-manager. I have successfully created a VM with 4 cpu's. These cpus appear in the VM in /proc/cpuinfo. using virsh vcpuinfo I can also see that these cpus exist. However they all appear to be pinned to the same physical cpu. If I try to change this using "virsh vcpupin machine 0 3" for example, all vcpus get pinned to 3. This is also ob (HowTos)