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Date:	Thu, 5 May 2011 18:42:45 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Krishna Kumar2 <krkumar2@...ibm.com>
Cc:	davem@...emloft.net, eric.dumazet@...il.com, kvm@...r.kernel.org,
	netdev@...r.kernel.org, rusty@...tcorp.com.au
Subject: Re: [PATCH 0/4] [RFC] virtio-net: Improve small packet performance

On Thu, May 05, 2011 at 08:57:13PM +0530, Krishna Kumar2 wrote:
> "Michael S. Tsirkin" <mst@...hat.com> wrote on 05/05/2011 02:34:39 PM:
> 
> > > Do I need to apply all the patches and simply test?
> > >
> > > Thanks,
> > >
> > > - KK
> >
> > Exactly. You can also try to tune the threshold
> > for interrupts as well.
> 
> I haven't tuned the threshhold, it is left it at 3/4. I ran
> the new qemu/vhost/guest, and the results for 1K, 2K and 16K
> are below. Note this is a different kernel version from my
> earlier test results. So, f.e., BW1 represents 2.6.39-rc2,
> the original kernel; while BW2 represents 2.6.37-rc5 (MST's
> kernel). This also isn't with the fixes you have sent just
> now. I will get a run with that either late tonight or
> tomorrow.

One thing I'd suggest is merging v2.6.39-rc6 into that tree.
rc2 is still pretty early, reason I use it is because that is
what net-next is.

-- 
MST
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