What you said is true but by starting with the data in the SMF you can then
drill down. If a program is called via CALL or any of the other methods the
CPU will be shown in the SMF for the program in the JCL pgm=.
Joel Wolpert
Performance and Capacity Planning consultant
WEBSITE: www.perfconsultant.com
----- Original Message -----
From: "Rick Fochtman" <[email protected]>
Newsgroups: bit.listserv.ibm-main
To: <[email protected]>
Sent: Tuesday, August 18, 2009 9:28 PM
Subject: Re: Where to find statistics for fetched programs?
---------------------------<snip>-----------------------------
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.
----------------------------<unsnip>----------------------------
This sounds good until you dig a little deeper. There's no record in SMF
of any subroutines, etc. that are invoked via LINK or LOAD/CALL/DELETE or
ATTACH or XCTL.
This "little gap" can lead to a lot of missing formation. BTDTGTSS
Rick
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