{"id":14224,"date":"2022-01-21T11:58:29","date_gmt":"2022-01-21T11:58:29","guid":{"rendered":"https:\/\/linuxways.net\/?p=14224"},"modified":"2022-01-21T11:58:29","modified_gmt":"2022-01-21T11:58:29","slug":"iostat-command-in-linux","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/centos\/iostat-command-in-linux\/","title":{"rendered":"iostat Command in Linux"},"content":{"rendered":"

Introduction<\/h2>\n

The iostat command in Linux allows users to monitor system i\/o statistics on the device. It is based on how long the devices are operating at the average baud rate to monitor the input\/output of the system. Based on reports, system configurations can be changed to optimize CPU performance. This command is in the sysstat package.<\/p>\n

Now we’re gonna teach you to use the iostat command in Linux.<\/p>\n

Installing sysstat package<\/h2>\n

Since the iostat command is in the sysstat package, you need to install it:<\/p>\n

$ sudo apt install sysstat<\/pre>\n
Output:<\/p>\n
<\/p>\n
Using iostat command<\/h2>\n
To display monitoring reports:<\/p>\n
$ iostat<\/pre>\n
Output:<\/p>\n
<\/p>\n
In the output, you can see the CPU report and Device report.<\/p>\n
Parameter<\/strong>:<\/p>\n
1. CPU<\/p>\n
%user: % CPU usage<\/p>\n
%nice: % CPU usage with nice priority<\/p>\n
% system: % CPU usage at the system level<\/p>\n
%iowait: % of CPU time idle and system request i\/o<\/p>\n
%steal: % virtual CPU waiting while another virtual processor is serving the hypervisor<\/p>\n
%idle: % CPU time idle and no system request i\/o<\/p>\n
2. Device<\/p>\n
Device: the I\/O device name<\/p>\n
tps: the transfers per second<\/p>\n
kB_read\/s: the amount of data CPU read per second in kiloBytes (kB)<\/p>\n
kB_wrtn\/s: the amount of data CPU written per second in kiloBytes (kB)<\/p>\n
kB_dscd\/s: the rate of data CPU discarded per second in kiloBytes (kB)<\/p>\n
kB_read: the total number of blocks read<\/p>\n
kB_wrtn: the total number of blocks written<\/p>\n
kB_dscd: the total number of blocks discarded<\/p>\n
The syntax of the iostat command<\/h2>\n
$ iostat [option] [device-name]<\/pre>\n
option<\/strong>:<\/p>\n
1. -c: displaying summary of monitoring reports<\/p>\n
$ iostat -c<\/pre>\n
Output:<\/p>\n
<\/p>\n
2. -d: displaying I\/O devices report only<\/p>\n
$ iostat -d<\/pre>\n
Output:<\/p>\n
<\/p>\n
3. -x: displaying the detailed report<\/p>\n
$ iostat -x<\/pre>\n
Output:<\/p>\n
<\/p>\n
4. -m: displaying reports in MegaBytes<\/p>\n
$ iostat -m<\/pre>\n
Output:<\/p>\n
<\/p>\n
5. -k: displaying reports in kiloBytes<\/p>\n
$ iostat -k<\/pre>\n
Output:<\/p>\n
<\/p>\n
6. -p: displaying device block report<\/p>\n
$ iostat -p<\/pre>\n
Output:<\/p>\n
<\/p>\n
Conclusion<\/h2>\n
We just taught you to use the iostat command in Linux.<\/p>\n
Thank you for referring!<\/p>","protected":false},"excerpt":{"rendered":"
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