Feature #7036
openFeature #6805: cpu-affinity: enhance CPU affinity logic with per-interface NUMA preferences
DPDK NUMA setup: choose correct CPUs from worker-cpu-set
Description
My machine has even numbered cores on NUMA0 and odd numbered cores on NUMA1. I have defined two vdev interfaces, one on each socket, and defined worker-cpu-set as:cpu: [ 2,4,6,8,10,12,14,3,5,7,9,11,13,15 ]
The desired behaviour is that first 7 threads (2,4,6,8,10,12,14) use NIC on NUMA0 and the remaining 7 (3,5,7,9,11,13,15) use NIC on NUMA1.
Actual behaviour is that the cpu list is probably sorted internally and read as [ 2,3,4,5,6,7,8,9,10,11,12,13,14,15 ]. As a result, I receive a warning stating - dpdk: net_bonding0: NIC is on NUMA 0, 3 threads on different NUMA node(s) , which indicates that threads 2-8 are using NIC on NUMA0 and 9-15 are using NIC on NUMA1.