[dpdk-dev] Could not achieve wire speed for 40GE with any DPDK version on XL710 NIC's

[Andrew Theurer]

On Mon, Jun 29, 2015 at 10:06 AM, Keunhong Lee <dlrmsghd at gmail.com> wrote:

> I have not used XL710 or i40e.
> I have no opinion for those NICs.
>
> Keunhong.
>
> 2015-06-29 15:59 GMT+09:00 Pavel Odintsov <pavel.odintsov at gmail.com>:
>
> > Hello!
> >
> > Lee, thank you so much for sharing your experience! What do you think
> > about 40GE version of 82599?
> >
> > On Mon, Jun 29, 2015 at 2:35 AM, Keunhong Lee <dlrmsghd at gmail.com>
> wrote:
> > > DISCLAIMER: This information is not verified. This is truly my personal
> > > opinion.
> > >
> > > As I know, intel 82599 is the only 10G NIC which supports line rate
> with
> > > minimum sized packets (64 byte).
> > > According to our internal tests, Mellanox's 40G NICs even support less
> > than
> > > 30Mpps.
> > > I think 40 Mpps is the hardware capacity.
>

​This is approximately what I see as well.  ​


> > >
> > > Keunhong.
> > >
> > >
> > >
> > > 2015-06-28 19:34 GMT+09:00 Pavel Odintsov <pavel.odintsov at gmail.com>:
> > >>
> > >> Hello, folks!
> > >>
> > >> We have execute bunch of tests for receive data with Intel XL710 40GE
> > >> NIC. We want to achieve wire speed on this platform for traffic
> > >> capture.
> > >>
> > >> But we definitely can't do it. We tried with different versions of
> > >> DPDK: 1.4, 1.6, 1.8, 2.0. And have not success.
> > >>
> > >> We achieved only 40Mpps and could do more.
> > >>
> > >> Could anybody help us with this issue? Looks like this NIC's could not
> > >> work on wire speed :(
> > >>
> > >> Platform: Intel Xeon E5 e5 2670 + XL 710.
> > >>
> > >> --
> > >> Sincerely yours, Pavel Odintsov
> > >
> > >
> >
> >
> >
> > --
> > Sincerely yours, Pavel Odintsov
> >
>
​-Andrew​