I will give an example of viewing on which NUMA node the network interfaces are located in Linux.
Let’s see the number of NUMA node and interrupt network interfaces:
lscpu | grep -i numa cat /proc/interrupts | egrep -i "CPU|rx"
Check if the network interfaces are tied to Numa (if -1 means not tied, if 0, then to numa0):
cat /sys/class/net/ens1f0/device/numa_node cat /sys/class/net/ens1f1/device/numa_node
You can see which NAMA the network card belongs to, for example, using lstopo:
apt install hwloc lstopo lstopo --logical lstopo --logical --output-format png > lstopo.png