网速磁盘读写速度

How to Test Your Internet Speed Bidirectionally from Command Line Using ‘Speedtest-CLI’ Tool

https://www.tecmint.com/check-internet-speed-from-command-line-in-linux/

https://www.tecmint.com/iotop-monitor-linux-disk-io-activity-per-process/#:~:text=Iotop%20is%20an%20open%20source,or%20threads%20on%20the%20systems.

https://www.linuxprobe.com/linux-io.html

iotop --only

iotop -botqqq --iter=3