iotop

Display a table of current I/O usage by processes or threads.

TLDR

Start top-like I/O monitor

$ iotop
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Show only processes or threads actually doing I/O

$ iotop -o
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Show I/O usage in non-interactive mode

$ iotop -b
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Show only I/O usage of processes(Default is to show all threads)

$ iotop -P
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Show I/O usage of given PID(s)

$ iotop -p [PID]
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Show I/O usage of a given user

$ iotop -u [user]
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Show accumulated I/O instead of bandwidth

$ iotop -a
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