Re: [dpdk-users] net/mlx5 statistics related

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

Can you try the following patch, which had been added after 18.11.0
I'll try to push it for 18.11.3.

http://git.dpdk.org/dpdk/commit/?id=ce9494d76c478345679abbda2a5606646de9886f


Thanks,
Yongseok

> On Jul 28, 2019, at 2:12 AM, benli ye <danielbenliye@gmail.com> wrote:
> 
> Dear Mellanox experts,
> 
> I am running DPDK 18.11.0 performance test with mlx5 PMD driver on device ConnectX®-4 Lx EN. Our own DPDK app (a Load Balance app) is used and UDP 64 bytes is generated by tester.
> We found that when we generated about 2.6Mpps UDP traffic for 1 core and 2 port setting testbed, our app starts to drops packets. However, the strange issue is we cannot see any imissed or error statistics from DPDK layer.
> I saw the Mellanox test performance result in https://fast.dpdk.org/doc/perf/DPDK_18_11_Mellanox_NIC_performance_report.pdf and how do you find packet lose? Is there a bug in statistic calculation in DPDK or there is another way to trace packet drop?
> Retrieve DPDK statistics is also used for Intel NIC and the behavior is right. it should not be wrong for our usage in our own app.
> 
> Any suggestions would be welcomed. Thanks very much!
> 
> 
> Bests,
> Daniel Benli Ye