On Wed, 16 Nov 2011 09:23:17 +0200, "Michael S. Tsirkin" [off-list ref] wrote:

On Wed, Nov 16, 2011 at 10:34:42AM +1030, Rusty Russell wrote:

quoted

On Mon, 14 Nov 2011 15:05:07 +0200, "Michael S. Tsirkin" [off-list ref] wrote:

quoted

On Mon, Nov 14, 2011 at 02:25:17PM +0200, Pekka Enberg wrote:

quoted

On Mon, Nov 14, 2011 at 4:04 AM, Asias He [off-list ref] wrote:

quoted

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.