What arguments did you pass to l2fwd and l3fwd when you started them up?
Your NIC statistics show RX misses due to lack of available buffers....
HundredGigabitEthernet4b/0/0 1 up HundredGigabitEthernet4b/0/0
[...]
rx_out_of_buffer 86941
HundredGigabitEthernet4b/0/1 2 up HundredGigabitEthernet4b/0/1
[...]
rx_out_of_buffer 155395
I don't know if those errors are enough to cause the difference in your
throughput measurements between l2fwd/l3fwd and VPP, but it would probably
be worthwhile to increase buffers-per-numa and repeat your tests.
I have heard advice in the past that performance with Mellanox DPDK PMDs
can be improved by setting the no-multi-seg option. I don't know whether
that is still true and I never compared performance with that option set vs
without, so I'm not sure how much it would help. But it may be worth trying.
Thanks,
-Matt
On Tue, Jan 3, 2023 at 8:21 AM <r...@gmx.net> wrote:
> Hi @Benoit, yes I can confirm NIC and VPP worker are on same node-0 . I am
> also using the same core-id for the benchmark comparison against plain dpdk
> l2fwd/l3fwd.
>
>
>
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