BWCTL is a policy and scheduling daemon that wraps a number of other performance measurement tools such as IPERF, NUTTCP, Ping, OWAMP, Traceroute, and Tracepath. This video discusses ways to schedule regular tests using this tool via the perfSONAR toolkit configuration interface.
bwctl -f m -T iperf3 -t 10 -i 1 -c RECV_HOST -s SEND_HOST