On Wed, 16 Nov 2011 09:23:17 +0200, "Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote: > On Wed, Nov 16, 2011 at 10:34:42AM +1030, Rusty Russell wrote: > > On Mon, 14 Nov 2011 15:05:07 +0200, "Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote: > > > On Mon, Nov 14, 2011 at 02:25:17PM +0200, Pekka Enberg wrote: > > > > On Mon, Nov 14, 2011 at 4:04 AM, Asias He <asias.hejun@xxxxxxxxx> wrote: > > > > > Why both the bandwidth and latency performance are dropping so dramatically > > > > > with multiple VQ? > > > > > > > > What's the expected benefit from multiple VQs > > > > > > Heh, the original patchset didn't mention this :) It really should. > > > They are supposed to speed up networking for high smp guests. > > > > If we have one queue per guest CPU, does this allow us to run lockless? > > > > Thanks, > > Rusty. > > LLTX? It's supposed to be deprecated, isn't it? I was referring back to "Subject: virtio net lockless ring" which Stephen sent back in June, nothing more specific. I assumed from his query that this was still an active area of exploration... Stephen? Thanks, Rusty. -- 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