KVM VM set net moel virtio and mulltiqueues

• check

$ qemu-kvm -net nic,model=help
qemu: Supported NIC models: ne2k_pci,i82551,i82557b,i82559er,rtl8139,e1000,pcnet,virtio

• edit

# virsh edit vm01

    <interface type='bridge'>
      <mac address='52:54:00:de:fd:d3'/>
      <source bridge='virbr0'/>
      <model type='virtio'/>               # alter here
      <driver name='vhost' queues='4'/>    # and here

• shutdown vm and wait
  
  virsh shutdown vm01

• start vm and check result

[ec2-user@vm01 ~]$ cat /proc/interrupts | egrep "in|out" | grep virtio
 27:         67          0          0          0          0          0          0       5632   PCI-MSI 49153-edge      virtio0-input.0
 28:          1          0          0          0          0          0          0          0   PCI-MSI 49154-edge      virtio0-output.0
 29:         27          0          0          0          0       5757          0          0   PCI-MSI 49155-edge      virtio0-input.1
 30:          1          0          0          0          0          0          0          0   PCI-MSI 49156-edge      virtio0-output.1
 31:       5948          0          0          0          0          0          0          0   PCI-MSI 49157-edge      virtio0-input.2
 32:          1          0          0          0          0          0          0          0   PCI-MSI 49158-edge      virtio0-output.2
 33:         24          0          0          0          0          0          0       7355   PCI-MSI 49159-edge      virtio0-input.3
 34:          1          0          0          0          0          0          0          0   PCI-MSI 49160-edge      virtio0-output.3

[ec2-user@api irq]$ cat {27,28,29,30,31,32,33,34}/smp_affinity_list
7
2
5
3
0
1
7
6