Hello @pczerny, thanks for message. I was playing with virsh configuration and figure out, that
<numatune>
<memory mode='strict' placement='auto'/>
</numatune>
PINs CPU to only one numa node when vcpu count is 1. When VM has more cpus it doesnt work. So only and best solution is to PIN to numa node programatic. VMS_THREADS are fine, but not pins to all cpus in particular numa node. When I was testing “manual” pinning (Automatic vCPU pinning using VM Hooks) anfter few months in production I figure out, that performance on VMs is worst.
So would you please extend NUMA pinning with option to pins to all cpu cores, cpu threads or cores/threads in particullar numa node? Then I can cherry pick changes and test again.