Suricata

This could help with deployments where CPU cores of 1 NUMA node are interleaved with CPU cores of the other NUMA (nodes) and there are NICs on every NUMA node.
In this scenario, the user might want to use CPU cores from both CPU NUMA nodes but control the NUMA assignment per-interface basis.

Supposed we have 2 NUMA nodes and 2 interfaces, we cannot assign CPU cores to the interfaces to be NUMA-friendly:
e.g.:
NUMA CPU1: 0,2,4,6,8
NUMA CPU2: 1,3,5,7,9

iface1 on NUMA1,
iface2 on NUMA2.

The desired assignment - cores 0,2,4,6,8 are assigned to iface1 and cores 1,3,5,7,9 are assigned to iface2.
Currently, the cores are merged together and are getting picked up in order by individual NICs, so iface1 gets cores 0,1,2,3,4 and iface2 gets cores 5,6,7,8,9.

This could be solved by more granular CPU assignment - e.g. CPU mask per interface or the CPU assigning logic could prefer CPU cores from NUMA nodes of the currently configured NIC.