Linux and Unix Test Disk I/O Performance With dd Command

Linux and Unix Test Disk I/O Performance With dd Command

Linux and Unix Test Disk I/O Performance With dd Command. Explains how to use the dd command for simple sequential disk I/O performance measurement on a Linux or Unix-like systems.

How can I use dd command on a Linux to test I/O performance of my hard disk drive? How do I check the performance of a hard drive including the read and write speed on a Linux operating systems? How can I use the dd command under Linux I/O performance test?

You can use the following commands on a Linux or Unix-like systems for simple **sequential** I/O performance test:

  • dd command : It is used to monitor the writing performance of a disk device on a Linux and Unix-like system.
  • hdparm command : It is used to get/set hard disk parameters including test the reading and caching performance of a disk device on a Linux based system.

In this tutorial you will learn how to use the dd command to test disk I/O performance .

Use dd command to monitor the reading and writing performance of a disk device:

  1. Open a shell prompt.
  2. Or login to a remote server via ssh.
  3. Use the dd command to measure server throughput (write speed) dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync
  4. Use the dd command to measure server latency dd if=/dev/zero of=/tmp/test2.img bs=512 count=1000 oflag=dsync

linux unix i/o

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