Numa: Difference between revisions
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*[https://www.baeldung.com/linux/numa-test-support Checking for NUMA capabilities] | *[https://www.baeldung.com/linux/numa-test-support Checking for NUMA capabilities] | ||
*[https://docs.kernel.org/admin-guide/numastat.html Numa policy hit/miss statistics] | *[https://docs.kernel.org/admin-guide/numastat.html Numa policy hit/miss statistics] | ||
*[https://dev.to/sergelogvinov/proxmox-cpu-affinity-for-vms-4dhb Proxmox CPU affinity for VMs] | *[https://dev.to/sergelogvinov/proxmox-cpu-affinity-for-vms-4dhb Proxmox CPU affinity for VMs] with nice diagram | ||
*[https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/sect-virtualization_tuning_optimization_guide-numa-numa_and_libvirt libvirt NUMA Tuning] | *[https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/sect-virtualization_tuning_optimization_guide-numa-numa_and_libvirt libvirt NUMA Tuning] | ||
*[https://forums.unraid.net/topic/99282-basic-vm-tuning-guide-for-multi-socket-motherboards/ Basic VM tuning guide for multi socket motherboards] | *[https://forums.unraid.net/topic/99282-basic-vm-tuning-guide-for-multi-socket-motherboards/ Basic VM tuning guide for multi socket motherboards] | ||
Revision as of 11:14, 28 January 2026
Links
- NUMA and vCPU pinning
- Checking for NUMA capabilities
- Numa policy hit/miss statistics
- Proxmox CPU affinity for VMs with nice diagram
- libvirt NUMA Tuning
- Basic VM tuning guide for multi socket motherboards
- 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
numactl
numatop
Error messages
CPU is not supported!
Doesn't work in VM? Or just doesn't know the CPU?
numastat
On host
Also try per guest, get PID of guest and
numastat <PID>
On guest
Numatune
Is run on the host
