[dpdk-users] Low throughput when pushing multiple priorities within a VLAN

[Erez Ferber]

Hi,

I suspect it is related to the egress QoS policy mechanism enabled by
default on the ConnectX. I suggest you contact the local support team so
they can suggest a proper solution.

Regards,
Erez

On Tue, 25 Aug 2020 at 16:06, Alireza Sanaee <sarsanaee at gmail.com> wrote:

> Hi,
>
> We have examined three NICs:
>
> Ethernet controller: Mellanox Technologies MT27800 Family [ConnectX-5]
> Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
> Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection
>
> Our DPDK version is 20.05.0-rc0, Intel NIC works properly and doesn't show
> any throughput slow down, however, Mellanox NICs both show dramatic slow
> down for some reason.
>
> Thanks,
> Alireza
> On 8/25/20 8:42 AM, Alireza Sanaee wrote:
>
> Hi,
>
> Here is my NIC,  Ethernet controller: Mellanox Technologies MT27710 Family
> [ConnectX-4 Lx]
>
> Thanks,
> Alireza
> On 8/25/20 3:17 AM, Erez Ferber wrote:
>
> Hi,
>
> Which NIC are you using ?
>
> Thanks,
> Erez
>
> On Mon, 24 Aug 2020 at 11:34 Alireza Sanaee <sarsanaee at gmail.com> wrote:
>
>> Dear all,
>>
>>
>>
>> I'd like to push two flows with two different priorities from a NIC to
>>
>> the network. If I use same priority for my flows, they'll be pushed at
>>
>> the line rate. However, when I pick two different VLAN priorities,
>>
>> throughput reduces drastically.
>>
>>
>>
>> Is there anything wrong with my NIC configuration?
>>
>>
>>
>> Thanks,
>>
>> Alireza
>>
>>
>>
>>