Record infrequently used but potential useful commands
Contents iperf3 - Network speed test qemu - convert images iperf3 Test network speed between devices. First, open server-side iperf/iperf3 service, then, test it by client-side iperf/iperf3 application. Under windows system, the application is iperf3.exe.
Open server-side iperf3 service iperf3 -s -p 5201
Open client-side iperf3 service iperf3 -c [ip address] -p 5201
Qemu convert images qemu-img convert -f [format] -O [output format] vm-114-disk-0.qcow2 vm-114-disk-0.