A port of the original iotop to C with additional features. Acts like top but for disk I/O. Good for keeping an eye on what's bogging your disk array down.

You can add a capability so that you don't need to be root to run it: sudo setcap 'cap_net_admin+eip' /path/to/iotop

Here's my command line: iotop -o -2 -6 -8

• -o - Only show processes that are currently doing I/O.
• -2 - Don't show the PRIO column, because I don't care about that.
• -6 - Don't show the SWAPIN column, because I don't care about that.
• -8 - Don't show the graph, because I want to see more of the command on the line.

In the AUR as iotop-c.