From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pavel Odintsov <pavel.odintsov@gmail.com>
Subject: Re: Could not achieve wire speed for 40GE with any DPDK
 version on XL710 NIC's
Date: Mon, 29 Jun 2015 18:41:08 +0300
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Hello, Andrew!

What NIC have you used? Is it XL710?

On Mon, Jun 29, 2015 at 6:38 PM, Andrew Theurer <atheurer@redhat.com> wrote:
>
>
> On Mon, Jun 29, 2015 at 10:06 AM, Keunhong Lee <dlrmsghd@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@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@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@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
>
>



-- 
Sincerely yours, Pavel Odintsov