IRQ-CPU affinity for AF_XDP TX?

Hi,

For AF_XDP (in ZC or copy mode), the IRQ-CPU affinity plays a role in
the RX direction to bind a CPU core to a particular NIC queue (mapping
the CPU core to the NIC queue's IRQ).

My question is does the IRQ or IRQ-CPU affinity play any role in the
TX direction?

An xsk is specific to a NIC queue and assuming there is only one core
doing TX on that xsk, is there some IRQ/CPU configuration recommended
for better performance?

Does the recommendation change if busy-polling mode is used or not
used? ZC or non-ZC?

Srivats