Script for CPU usage -Linux

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# 1  
Old 09-19-2013
Script for CPU usage -Linux

Hi all
I was wondering if its possible to write a script to keep CPU usage at 90%-95%? for a single cpu linux server?

I have a perl script I run on servers with multple cpu's and all I do is max all but one cpu to get into the 90'% utilised area. I now need a script that raises the CPU to 90-95% for 15mins on a server with a single cpu.

---------- Post updated at 09:53 AM ---------- Previous update was at 09:52 AM ----------

Sorry, I should add it needs to be at that level for 10-15mins

Last edited by sudobash; 09-19-2013 at 12:35 PM..
# 2  
Old 09-19-2013
Originally Posted by sudobash
I have a perl script I run on on server with multple cpu's and all I do is max all but one cpu to get into the 90'% utilised area.
Run one instance for each CPU.

You could also try something like mprime
# 3  
Old 09-19-2013
[QUOTE=Corona688;302855225]Run one instance for each CPU.

I've updated my original post to provide further clarity
# 4  
Old 09-19-2013
download the stress utility

Use this as a reference.

Linux Stress Test - memory, disk, and cpu testing with StressLinux
# 5  
Old 09-20-2013
well thanks for your advice all but I ended up using
perl -e 'while (--$ARGV[0] and fork) {}; while () {}' $NUMBER_OF_CPU &

but i re-niced the process until cpu was at 90-95%

Last edited by Franklin52; 09-20-2013 at 09:41 AM.. Reason: Please use code tags
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