Reduce CPU time

Andy85 · New User Joined: 25 Dec 2008 Posts: 35 Location: India

I would like to know what all factors contribute to CPU time for a job.If a job is scheduled in CA7 scheduler, does it contribute to CPU time? In what ways can I reduce CPU time for a job without making changes to the programs in that job?

Thanks in advance.

Andy.

enrico-sorichetti · Posted: Thu May 21, 2009 1:42 pm

the way a job is scheduled has nothing to do with resource consumption by the job itself

You cannot do it <full stop>

if You want to split hair there might be a very small overhead ( at step and job termination )
due to interfacing with the scheduling system ( any of them )
but I would not call it a resource killer

expat · Posted: Thu May 21, 2009 2:20 pm

I/O is the first place to look, but even that may lead to program changes at some further point.

Andy85 · New User Joined: 25 Dec 2008 Posts: 35 Location: India

Robert Sample · Posted: Thu May 21, 2009 2:56 pm

CPU time is consumed by the program doing processing on data. It is pretty much impossible to have any significant impact on CPU time without making program changes. So either plan on making program changes or give up the idea of reducing CPU time consumption for that job.