Modify the guest XML definition to enable
multi-queue virtio-net. Multi-queue virtio-net allows network performance
to scale with the number of vCPUs and allows for parallel packet
processing by creating multiple TX and RX queues.
Modify the guest XML definition. Insert a value
from 1 to 256 for N to specify the number of queues. For the best
results, match the number of queues with number of dataplane cores
configured on the VM.