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: > > On Sat, Nov 12, 2011 at 12:12:01AM +0200, Sasha Levin wrote: > > > 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 <krkum...@in.ibm.com> > > > Cc: Michael S. Tsirkin <m...@redhat.com> > > > Cc: Rusty Russell <ru...@rustcorp.com.au> > > > Cc: virtualization@lists.linux-foundation.org > > > Cc: net...@vger.kernel.org > > > Signed-off-by: Sasha Levin <levinsasha...@gmail.com> > > > > 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. _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
