DPDK 22.03 substantially slower with Intel E810-C

[Lokesh Chakka]

You are lucky. At least it is working. The E810-2CQDA2 Intel card I have
purchased is shutting down immediately after devbind. Even the technical
support is pathetic. It is one week I raised the issue and no progressive
response till now.

--
Lokesh


On Thu, Aug 4, 2022, 15:52 Filip Janiszewski <contact at filipjaniszewski.com>
wrote:

> Hello,
>
> DPDK 22.03 contains quite some changed to the ICE driver and the
> implementation for the Intel E810-C card, I'm running some tests and
> while switching to this new version from 21.02 I see a degradation of
> performance of around 30% using 4 capture core with 40Gbps rate (64bytes
> frame), packets are random and evenly distributed among the cores.
>
> Leaving unchanged all the other factors and only updating the library I
> start observing substantial packet drops, using igb_uio and firmware
> version 3.00 0x80008256 1.2992.0, I do not see any drop with 21.02.
>
> Is there any novel configuration to be made during initialization of the
> card or something like that? Anyone else is observing performance drop
> with the new dpdk?
>
> Thanks
>
> --
> BR, Filip
> +48 666 369 823
>
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