Check Disk Speed in Linux From Terminal. How To

In this article you will learn how to check disk speed in Linux from terminal.

We can check Linux disk (HDD or SSD) I/O performance with hdparm command.

Hdparm is a command line utility for Linux to set and view ATA hard disk drive hardware parameters and test performance.

$ sudo yum install hdparm -y

$ sudo apt-get install hdparm

hdparm with -I option will display information about hard drive

$ hdparm -I /dev/sda

Display all the options:

$ hdparm -h

hdparm -Tt /dev/sda will measure show buffered and cached disk read speed.

$ sudo hdparm -Tt /dev/sda

Example output:

/dev/sda: Timing cached reads: 17678 MB in 2.00 seconds = 8850.51 MB/sec Timing buffered disk reads: 1044 MB in 3.00 seconds = 347.94 MB/sec