NUMA Alignment on Proxmox VE — Why It Matters and How to Get It Right
On multi-socket systems, a VM with its vCPUs on one NUMA node and its passed-through device on another loses 20–30% throughput before you’ve even looked at anything else.
Cpu
On multi-socket systems, a VM with its vCPUs on one NUMA node and its passed-through device on another loses 20–30% throughput before you’ve even looked at anything else.