On Fri, 22 Jun 2018 17:05:04 -0700 Siwei Liu <losewe...@gmail.com> wrote:
> On Fri, Jun 22, 2018 at 3:33 PM, Michael S. Tsirkin <m...@redhat.com> wrote: > > I suspect the diveregence will be lost on most users though > > simply because they don't even care about vfio. They just > > want things to go fast. > > Like Jason said, VF isn't faster than virtio-net in all cases. It > depends on the workload and performance metrics: throughput, latency, > or packet per second. So, will it be guest/admin-controllable then where the traffic flows through? Just because we do have a vf available after negotiation of the feature bit, it does not necessarily mean we want to use it? Do we (the guest) even want to make it visible in that case?