iotop

observability

A top-like utility for monitoring disk I/O usage by processes on Linux systems

Pronunciation

Correct

I-O-top

/aɪ oʊ tɒp/

Three parts: the letters 'I', 'O', then 'top'. Stands for 'Input/Output top'. Each letter is pronounced individually before 'top'.

Source: www.kernel.org(official spec)