[SOLVED] listing cpu usage with top command

dave12 · 04-13-2010, 08:17 AM

Hi,

Im trying to list the cpu usage of all process that have a cpu usage of 10% or more. Im not interested in the lower usages. Im using the top command and can get a list of all the cpu usage for all the process but cant only get the processes with 10% or more.

Ideally I'd want these processes sent to a new file. Would I be able to cat the cpu usages and PID into a file?

Any Ideas?

Thanks

PMP · 04-13-2010, 08:22 AM

man ps, look for %cpu

dave12 · 04-16-2010, 06:36 AM

Cheers, i've looked at the ps and got a script that can put the pcpu in a variable. When i try to use an if statement to make only processes taking 10% or over of cpu time i get an error.

Heres the script

#!/bin/sh

PS_RESULTS=`ps -eo pcpu`

if [ $PS_RESULTS -ge 10 ]; then

echo $PS_RESULTS

fi

i get the error:
[: 9: 0.0: unexpected operator

any ideas?

cheers

syg00 · 04-16-2010, 06:53 AM

I would suggest you do the echo first - you might be surprised what you are trying to compare against.

dave12 · 04-16-2010, 06:59 AM

Thanks for the reply.

I think I see my problem, I'm printing out the whole %CPU column, not just the values. How would I get around this?

Cheers

cola · 04-16-2010, 07:03 AM

Quote:

Originally Posted by dave12

Thanks for the reply.

I think I see my problem, I'm printing out the whole %CPU column, not just the values. How would I get around this?

Cheers

Mark the thread as "[SOLVED]" if it's solved.

PMP · 04-16-2010, 07:07 AM

Code:

ps -eo pcpu --sort=%cpu | awk '($0 > 10) {print}'

dave12 · 04-16-2010, 07:10 AM

Ah i see,

Thanks a lot for the help. Solved!

syg00 · 04-16-2010, 07:13 AM

Personally, I always find it useful to include the process (or at least command) that's using that CPU.