Between little and none :) IMHO Dave Gibney Information Technology Services Washington State University
> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Kent Ramsay > Sent: Thursday, March 15, 2012 12:12 PM > To: [email protected] > Subject: Hypothetical Performance Question > > Hi, > > A hypothetical question but first the setting: A customer has two jobs auto- > submitted within five minutes of each other. Job 1 grabs the dozen or so data > sets and executes, leaving Job 2 with a formal "waiting for data sets" > situation. Obviously, when Job 1 finishes, Job 2 actually starts. Now the > question: While Job 2 is queued up waiting for the data sets, is there any > appreciable use of CPU by z/OS or JESx services to continually check to see if > the data sets are free, yet? In this case, Job 1 runs for almost 4 hours so > Allocation services is checked at least occasionally. I'm not interested in > doing > a charge-back, just wondering if there's any real cpu usage. > > Since this cropped up, the customer has changed the job schedule to submit > Job 2 after Job 1 completes but the mind wonders. Thanks. > > Kent > > Kent Ramsay > 425.681.2278 > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
