Expert: Concise Systems/Laird Scranton - 9/20/2007

Question
Is there a way to limit the %cpu a job can take. I have several job which take high CPU. I have optimized them but still they take high CPU. I want a way to submit the job so that there CPU usage dont go above a limit. Say 2%(without worrying about how to optimize etc)


Answer
The simplest approach is to submit the job to batch with a low run priority and timeslice, say RUNPTY(50) TIMESLICE(5000). From there, the system simply grants the job run time after it has satisfied all other jobs of higher priority.  Otherwise, you could explore more exotic solutions such as creating a separate memory pool for the job to run in.  However, in my experience, setting a low priority is as effective a way as any.

- Laird