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This article mainly introduces how to use the iostat command, which has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

the iostat command

function description

iostat command can count CPU and disk status. The usage is as follows:

iostat [options]

common parameters

Option Description-c Display CPU information only-d Display hard disk information only-s Display memory-related statistics and the number of various system activities-n Display only one header delay refresh interval at the beginning, if not specified, only one result count refresh times, if not specified, refresh all the time-d Display disk-related statistics-p Display partition statistics for specified disks-S Display in specified units

Install iostat

[root@pop3 ~]# cat /etc/redhat-release

CentOS Linux release 7.1.1503 (Core)

[root@pop3 ~]# iostat

-bash: iostat: command not found

[root@pop3 ~]# yum install -y sysstat

example

-d Displays disk information, -k Collects information every 2 seconds in k units for 5 displays

[root@pop3 ~]# iostat -d -k 2 5

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