"Michael S. Tsirkin" <[email protected]> wrote on 05/03/2010 08:56:14 AM:
> On Mon, May 03, 2010 at 08:39:08AM -0700, David Stevens wrote: > > "Michael S. Tsirkin" <[email protected]> wrote on 05/03/2010 03:34:11 AM: > > > > > On Wed, Apr 28, 2010 at 01:57:12PM -0700, David L Stevens wrote: > > > > This patch adds mergeable receive buffer support to vhost_net. > > > > > > > > Signed-off-by: David L Stevens <[email protected]> > > > > > > I've been doing some more testing before sending out a pull > > > request, and I see a drastic performance degradation in guest to host > > > traffic when this is applied but mergeable buffers are not in used > > > by userspace (existing qemu-kvm userspace). > > > > Actually, I wouldn't expect it to work at all; > > the qemu-kvm > > patch (particularly the feature bit setting bug fix) is required. > > Which bugfix is that? Actually, I see you put that upstream already-- commit dc14a397812b91dd0d48b03d1b8f66a251542369 in Avi's tree is the one I was talking about. I'll look further. +-DLS _______________________________________________ Virtualization mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/virtualization
