Using SMF30 subtype 4 Calculate top 100 cpu consuming steps (Total of TCB/SRB) by program name (EXEC PGM=) over some period of time. Add any appropriate filters and retry. E.G. IEBGENER - IBM code, can't do much about it in the short run, so ignore.
Calculate for the top 100 CPU consumed/IO (excp count). Rank the top 100 by CPU/IO. Start at the top of the list and work down using STROBE, GTF, other to determine the cause. Code/test/promote. Repeat ad infinitum, until be benfits gained are exceeded by the effort required. Hope this approach helps. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Jan Vanbrabant Sent: Tuesday, August 18, 2009 3:26 PM To: [email protected] Subject: Where to find statistics for fetched programs? Hi, I got the question how frequently programmes are fetched, and then how much CPU they consume. This in order to put together kind of a hit parade of big CPU consumers & then tackle their tuning. RMF can't help me while Monitor I and Monitor III provide long-term data collection about system workload and resource utilization, while covering all hardware and software components of the system. Monitor II neither while it's about snapshot monitoring. I had a look at SMF too: RecordType4(04) (StepTermination) or Record Type 30 (1E) Common Address Space Work - subtype 4 (Steptotal) is a step in the right direction, but it's on step level. But at first glance, we are rather interested in load module fetch counts & CPU consumption independent of step/job. Please route me to what-and-where-to-read. Which utilities or analysis programs can ease the data collection & analysis? MXG? Omegamon? Other? I would appreciate you putting me on the right orbit. JV ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
