Ethernet bidirectional performance

Question

Hello!

Has anybody measured the zedboard's ethernet bidirectional performance in linux?

I checked the tutorial given in http://zedboard.org/content/updated-open-source-linux-ethernet-performance-test-tutorial-posted but this used iperf3, which, if I'm not mistaken, does not have --dualtest option of iperf2.

I tried using iperf v2 on a custom linux image and I was getting big discrepancies in throughput values. One direction is getting >600Mbps while the other shows <100Mbps. I was wondering if this is hardware related, linux dirver related, or something else.

Just a note on my setup, I have a laptop and zedboard directly connected with a Cat5e cable. Ethernet negotiation shows 1000baseT-FD. I need to have the laptop and zedboard communicate simultaneously in realtime, hence the need for bidirectional performance.

Thanks!

jafoste4 · Accepted Answer

Hello oclabbao,

I am not aware of any bidirectional ethernet performance tests being done on the Zedboard on our end. You could try asking the same question over at the the Xilinx and Digilent forums in attempt to reach a broader audience.

https://forum.digilentinc.com/

https://forums.xilinx.com/

I wouold also caution you with using your RTOS. Please read through this forum post and it discusses some of the challeneges others have faced.

http://zedboard.org/content/ethernet-throughputperformance

--Josh