Iotop

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

Activities

• Execute iotop and review disk activity in your computer
• Measure your hard disk read performance using hdparm command.

sudo hdparm -t /dev/sdc9
/dev/sda2:
 Timing buffered disk reads: 1498 MB in  3.00 seconds = 499.29 MB/sec

• Review IO and filesystems benchmark tools such us fio https://stackoverflow.com/questions/1198691/testing-io-performance-in-linux

Related commands: nmon

• stress

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