Mainframe, MVS and zOS Discussion

Posted: **Mon Sep 12, 2016 3:10 pm**

Hi,

I have been observing a job for some days. The job runs one day and it takes 5 CPU seconds and the next day it takes 8 seconds and so on; while I didn't change anything. What happened? What can I do about it? What's going on? Why would this happen. Please help me to understand this.

Posted: **Mon Sep 12, 2016 5:20 pm**

The most common cause of this is differing numbers of records being input and processed -- one day 50,000 and the next day 80,000 for example. What can you do about it? Nothing. It is not a problem, nor is it anything to be concerned about.

Mainframe, MVS and zOS Discussion

Different CPU use of the job on different days.

Different CPU use of the job on different days.

Re: Different CPU use of the job on different days.