iotop

top-like I/O monitor for disks and I/O devices.

apt install iotop

iotop (Move left or right arrow key to change the sorting)
iotop -o or iotop --only
iotop -b or iotop --batch
iotop -a or iotop --accumulated
iotop -aP (only process, not threads)

Activities

• Execute iotop and review disk activity in your computer
• Measure your hard disk read performance using hdparm command.
• Review IO and filesystems benchmark tools such us fio https://stackoverflow.com/questions/1198691/testing-io-performance-in-linux

Related commands

• nmon
• stress
• iostat allow view performance by disk

See also

• IO performance: iotop, iostat, sar -d, fio, nmon, vmstat -d, dd, nmon, stress
• top, ntop, htop, atop, iotop, systemd-cgtop, virt-top, stress, slabtop, docker stats, docker top, docker container top, docker-compose top, nmon, tload, kubectl top pod PODNAME, sar, kubectl top, glances, vmstat, gpustat, asitop
• Performance, monitoring, sysstat, metrics, Telemetry

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Source: wikiversity