iperf3 benchmark

[emilio1234]

Hello,

I compiled the kernel in vanilla configuration (make atmel_sama5d3_xplained_ksz9897_mmc_defconfig) for my EVB-KSZ9477 board.

Made sure I was connected on 1GbE (on a single port 2, other ports no connected) and run an iperf3 test.
I got 167Mbits/s. Seems that the bandwidth is 1/6'th of the maximum.

This doesn't make sense to me... Does the BW/traffic is somehow being split between ports?
How can I get full bandwidth?

Thanks
Emil

[triha2work]

The gigabit MAC in SAMA5D3 actually cannot go over 375 Mbps in TCP receiving and 330 Mbps in UDP transmitting. The measurement I have on KSZ9477 are 370 Mbps in TCP RX,152 Mbps in TCP TX, 340 Mbps in UDP RX, and 314 Mbps in UDP TX. I was using nuttcp.