On Wed, Aug 12, 2009 at 08:41:31AM -0400, Gregory Haskins wrote: > Michael S. Tsirkin wrote: > > On Wed, Aug 12, 2009 at 07:56:05AM -0400, Gregory Haskins wrote: > >> Michael S. Tsirkin wrote: > > <snip> > > >>> > >>> 1. use a dedicated network interface with SRIOV, program mac to match > >>> that of guest (for testing, you can set promisc mode, but that is > >>> bad for performance) > >> > >> Are you saying SRIOV is a requirement, and I can either program the > >> SRIOV adapter with a mac or use promis? Or are you saying I can use > >> SRIOV+programmed mac OR a regular nic + promisc (with a perf penalty). > > > > SRIOV is not a requirement. And you can also use a dedicated > > nic+programmed mac if you are so inclined. > > Makes sense. Got it. > > I was going to add guest-to-guest to the test matrix, but I assume that > is not supported with vhost unless you have something like a VEPA > enabled bridge? > > <snip> Presumably you mean on the same host? There were also some patches to enable local guest to guest for macvlan, that would be a nice software-only solution. For back to back, I just tried over veth, seems to work fine. > >>> 3. add vhost=ethX > >> You mean via "ip link" I assume? > > > > No, that's a new flag for virtio in qemu: > > > > -net nic,model=virtio,vhost=veth0 > > Ah, ok. Even better. > > Thanks! > -Greg > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
