Re: [libvirt-users] poor network performance to one of two guests

On Sun, Jan 31, 2010 at 03:14:52PM +1100, Philip Nelson wrote:

G'day, I have a host running two kvm guests. One of them gets very poor network performance

I think I've figured this out. I created a 3rd guest to test and with iperf I was getting nearly 2Gbit/sec. I found the only difference was the interface had <model type='virtio'/>, so I added that to guest A and then had much better network performance. I'm guessing that was ommitted because I had used an older version of libvirt/virtinst when initially creating the guest (whichever version comes with lenny). I still don't know why one guest was much slower than the other, but it seems like it's all good now. Cheers -- Philip