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How to effectively measure CPU utilization in Unix?

Posted on 2015-02-15
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Last Modified: 2015-02-18
Hello,

I'm trying to determine how much stress a process puts on the CPU in GNU/Linux.

I've tried the 'top' command; but that doesn't save the details I need; and also it shows percentages that are greater than 100% on multiple processes, so I'm not sure how to utilize it properly.

Are there any shell/python scripts I could use to accomplish this?

Appreciate any help on this!
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Question by:Errang Genevre
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by:simon3270
simon3270 earned 167 total points
ID: 40610694
Depending on your Linux version you may be able to use "top -b" to run top repeatedly but just stream the output rather than do it page by page.  You redirect that to a file for later analysis.

As for the cpu percentage,  just divide by the number of cpus to get it to a 0-100% range.
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Assisted Solution

by:Gerwin Jansen, EE MVE
Gerwin Jansen, EE MVE earned 166 total points
ID: 40611380
You could try htop (if you have that installed), it's more advanced than top and has a more friendly interface.
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Accepted Solution

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Kamran Arshad earned 167 total points
ID: 40613581
Hi,

Monit is a decent option so is Htop;

http://mmonit.com/monit/
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Author Closing Comment

by:Errang Genevre
ID: 40616093
Thanks!
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