A few details might help. What are you asking ADRDSSU to do? Have any of the control cards or options changed? Did any other system options change? Have datasets run into extra extents as a result of the apply? Did you update the running system or apply the changes to an idle set of target libraries? Are you running with the new PTFs? If so, did your IPL include a CLPA? Did any of the PTFs hit ADRDSSU?
:>: -----Original Message----- :>: From: IBM Mainframe Discussion List [mailto:[email protected]] On :>: Behalf Of Peter Vander Woude :>: Sent: Tuesday, May 14, 2013 11:18 AM :>: To: [email protected] :>: Subject: ADRDSSU performance degradation :>: :>: We are running z/OS 1.11 and in prep for our upgrade to 1.13, we IPL'd :>: last week sunday to implement the ptf's for toleration/compatibility :>: with 1.13. In reviewing our performance last week, we are seeing large :>: cpu time increases in programs such as ADRDSSU, where the week before :>: the IPL, ADRDSSU used approx. 3 hours of cpu time per day. A couple :>: days after the IPL, that jumped up to 7 hours of cpu time per day, with :>: no real change in the # of executions. :>: :>: An example of the increase is a jobstep that before the IPL used approx. :>: 12 minutes tcb time, and 7.5 minutes srb time and approx. 15 million :>: IOPS. AFter the IPL we are now seeing the same step do the same 15 :>: million IOPS, but TCB time has jumped to 26 minutes and SRB time has :>: jumped to 23.5 minutes. :>: :>: I know that 1.11 is out of support, so i can't ask them, but does :>: anybody have an idea on this? I did do a number of searches on ibmlink, :>: but to no avail. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
