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From: "Gray, Mark D" <mark.d.gray@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>, Jun Xiao
 <jun.xiao@cloudnetengine.com>
Thread-Topic: [dpdk-dev] vswitches performance comparison
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Date: Wed, 22 Jul 2015 08:07:04 +0000
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Cc: dev <dev@dpdk.org>, discuss <discuss@openvswitch.org>
Subject: Re: [dpdk-dev] vswitches performance comparison
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> "Jun Xiao" <jun.xiao@cloudnetengine.com> wrote:
>=20
> > After CloudNetEngine vswitch technical preview is launched, we
> > received quite a few queries on vswitches performance comparison, but
> > we cannot simply give a  test result on our platform because
> > performance varies on different H/Ws and different workloads, and
> > that's why we encourage you to try the evaluation package to get real d=
ata
> on your setup.
> >
> > Anyway, we share a little more performance data on our H/W which is a
> > comparison  among native kernel OVS/OVS-DPDK/CNE vswitch under the
> most common workload:
> > concurrent bi-directional TCP traffics cross hosts, and hope you can ha=
ve a
> rough idea.
> > http://www.cloudnetengine.com/weblog/2015/07/22/vswitches-
> performance-
> > comparison/
> >
> > Thanks,
> > Jun
>=20
> Since the real bottleneck in most vswitches is per-packet overhead.
> I would recommend running RFC-2544 tests for better data.
>=20
> You probably need to use something like pktgen to get enough packets-per-
> second.

Yeah this is the methodology that we use aswell.