Linux CPU

Posted on 2012-03-26
Last Modified: 2012-06-27
I am running RHEL 6.2

My machine usually shows about 100 percent idle

It is now running at 96 percent idle, and it is doing this somewhat persistently

How do I find out what is taking the 4 percent ?  What commands should I run
Question by:Los Angeles1
LVL 31

Expert Comment

ID: 37766166
LVL 11

Expert Comment

ID: 37766169
"top" will show the current proceses, their PIDs, CPU load etc
LVL 11

Expert Comment

ID: 37766188
just curious how you are getting the idle information?
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LVL 11

Accepted Solution

legolasthehansy earned 500 total points
ID: 37766254
Run this command,

ps -eo pcpu,pid,user,args | sort -r -k1 | less

It gives you which process takes the highest CPU cycles in descending order.

Expert Comment

ID: 37766343
Hi , top -d2 and later Shift+M , press 1 a show cpu core


Author Closing Comment

by:Los Angeles1
ID: 37766351
I was using top to get idle, but I was looking for the ps command, sorry I did not post more clearly

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