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

Pavel Odintsov pavel.odintsov at gmail.com
Mon Jun 29 08:59:21 CEST 2015


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.
>
> 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


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