On Sun, 2011-11-13 at 17:00 +0200, Sasha Levin wrote:

On Sun, 2011-11-13 at 12:24 +0200, Michael S. Tsirkin wrote:

quoted

On Sat, Nov 12, 2011 at 12:12:01AM +0200, Sasha Levin wrote:

quoted

This is a patch based on Krishna Kumar's patch series which implements
multiple VQ support for virtio-net.

The patch was tested with ver3 of the patch.

Cc: Krishna Kumar <redacted>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Rusty Russell <redacted>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Sasha Levin <redacted>

Any performance numbers?

I tried finding a box with more than two cores so I could test it on
something like that as well.

From what I see this patch causes a performance regression on my 2 core
box.

[snip]

After discussing it with Michael, we found out that for a single TCP
flow the guest signals the same TX VQ, but the RX VQ keeps changing -
which means that theres missing host-guest synchronization of hash flow.

-- 

Sasha.