This is a port of Damian George's version downloaded from https://pypi.org/project/uiperf3/.
See examples/-directory for a server and client program.
When running as server, start iperf3 on a PC/laptop with:
iperf3 -l 4K -c 192.xxx.x.xxx # PC is sender
iperf3 -R -l 4K -c 192.xxx.x.xxx # CP-device is sender
When running as a client, start iperf3 on a PC/laptop with:
iperf3 -s
Be sure to update the IP/hostname of the server in examples/client.py.