The “avgqu-sz” column shows the average number of requests that are waiting to be processed. The “avgrq-sz” column shows the average size of the requests that are being processed. The “rkB/s” and “wkB/s” columns show the number of kilobytes that are being read and written per second. The “r/s” and “w/s” columns show the number of reads and writes that are being processed per second. You will see output that looks like this:ĭevice: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util To use this command, you can run the following command: iostat -xk 1 3įor example, if you run the following command: iostat -xk 1 3. The “iostat” command can be used to get more information about disk performance. If you see that the “iostat” command is showing a high rate of activity, it is an indication that your system is under a heavy load. The iostat command can generate the following types of reports: This information can be useful in understanding how your system is using its resources. This command will show you information about the input/output activity of your hard drive. The most common way to check disk performance in Linux is using the “iostat” command. sar – This command provides system activity information in a historical way, including disk activity.Ĭheck disk performance with iostat command in Linux.df – This command displays information about the amount of free space on each disk and partition.iostat – This command provides information about CPU and I/O statistics for devices and partitions.The following Linux commands can be used to check disk performance:
#Linux disk map how to#
This is an important task for any system administrator or developer who is responsible for maintaining a Linux server.īy understanding how to check disk performance, you can ensure that your systems are running smoothly and efficiently! 3 Linux Commands to check disk performance In this blog post, we will discuss three different ways to check disk performance in Linux.
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