slow responsiveness of kvm guests

Quoted 4 lines · Kai Zimmer

qemu-kvm -hda xyz.qcow2 -daemonize -net nic,model=virtio -net tap -k de -m 3584 -smp 2 -mem-path /hugepages -vnc :2

Any ideas what goes wrong here?

All three guests have the same MAC address, so when one talks, you can't hear the others.

Use -net nic,model=virtio,macaddr=00:11:22:33:44:0{1,2,3} (different addresses for different guests).