[dpdk-users] Reg: Performance degradation in DPDK-18.11

[Wiles, Keith]

> On Apr 8, 2019, at 7:01 AM, Gokilavani A <gokilavanianbazhagan at gmail.com> wrote:
> 
> Hi,
> 
> We have written simple Traffic Generator using DPDK.
> 
> We used a DPDK version of 17.05.2 then 17.08.2.
> 
> When we want to move that code to latest LTS version 18.11,  performance
> seems to be degraded interms of rate.
> 
> Even for 512B, got this rate reduction issue in transmission. Is it because
> of any timing APIs changed in 18.11?
> 
> Tried with DPDK 17.11, got the same problem. When I gone through the
> documents, not able to find any timer regarding API change or bug fixing.
> 
> Can any one help me in this regard?

You may want to give more details, NICs used, setup of hardware, what is the host system used, how is the generator sending packets (fixed packets or modified on the fly, …)

What was the performance difference with the DPDK versions you tried?

Have you tried Pktgen, TRex or testpmd to see if they have the same performance problem?

> 
> 
> Thanks
> 
> A.Gokilavani

Regards,
Keith