[libvirt-users] How can a bridge be optimized?

[Whit Blauvelt]

On Wed, Jun 13, 2012 at 11:59:45AM -0400, Laine Stump wrote:
> > I get around 150Mb, (on a Gb interface). But then its still showing as
> > "-device rtl8139" on the host. Should that be? 
> 
> No. If you say <model type='virtio'/>, then the qemu commandline will
> have "-device virtio-net". If it doesn't then your config change hasn't
> taken effect. After making the change, did you completely shutdown the
> guest, then restart it (a reboot operation from within the guest isn't
> sufficient to bring in the config changes, as it doesn't terminate and
> restart the qemu process).

Yeah I did. Probably my libvirt and/or kvm-qemu is just too old. Didn't
restart the host. But totally shut down the guest several times.

I'll be bringing libvirt and kvm-qemu up to current releases presently. If
that doesn't fix it, then there's a deeper mystery here.

Whit