[dpdk-users] Mellanox ConnectX-4, DPDK and extreme latency issues

[Shahaf Shuler]

Hi Arjun,

Thursday, June 22, 2017 9:40 PM, Arjun Roy,
> 
> Greetings all.
> 
> I have a weird issue regarding excessive latency using Mellanox ConnectX-4
> 100Gbe cards, DPDK and packet forwarding. Specifically: running the l3fwd
> and basicfwd DPDK example programs yields ping latencies of several (5-8)
> milliseconds. I tried the same test using an Intel X-540 AT2 card on the same
> systems and the latency was on the order of 4-5 microseconds.

Thanks for reporting.
This is the first time we hit such scenario, we will check it internally and will get back to you with answers.