Numa

Links

• NUMA and vCPU pinning
• Checking for NUMA capabilities
• Numa policy hit/miss statistics
• Proxmox cpu affinity for VMs
• libvirt NUMA Tuning
• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/performance_tuning_guide/main-cpu
• https://forum.proxmox.com/threads/dual-socket-systems.158898/

Tools

numatop

Error messages

CPU is not supported!

Doesn't work in VM? Or just doesn't know the CPU?

numastat

• Numa policy hit/miss statistics

On host=

Also try per guest, get PID of guest and

numastat <PID>

Numatune

Is run on the host

lstopo

• https://www.thomas-krenn.com/en/wiki/Display_Linux_CPU_topology_with_lstopo