Re: SETLL very slow????

I have seen this condition where the file you are doing the SETLL on is a
multiple format logical file, and the SETLL is being on a format that has few
or no records for your key. The system is reading the file until a record with
the format you requested is found.

Hope this helps,

Jeff Young
Sr. Programmer Analyst
IBM -e(logo) server Certified Systems Exper - iSeries Technical Solutions V5R2
IBM Certified Specialist- e(logo) server i5Series Technical Solutions Designer
V5R3
IBM Certified Specialist- e(logo)server i5Series Technical Solutions
Implementer V5R3









----- Original Message ----
From: "Wilt, Charles" <WiltC@xxxxxxxxxx>
To: RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
Sent: Wednesday, June 27, 2007 9:28:39 AM
Subject: SETLL very slow????


All,

I've got a strange problem, it seems as if SETLL is performing very, very slow.

Looking at the call stack for my job it mostly stays here:
Program
or
Procedure Library Statement
CV142C HLTHQALIB 0000005200
PEP_CV142R HLTHQALIB
CV142R HLTHQALIB 0000023800
ILDRECORDS HLTHQALIB 0000063100
X_DB_SETLL QSYS 0000000189
QDBGETKY QSYS 078F

Statement #63100 is a SETLL using 4 of 5 keys one a logical.

This program is reading data from a physical using one of two logicals, The
SETLL is being used to
determine if there are any child records for a given record. So the main
logical contains no children
records and the other logical has just children.

During my initial tests, there were no children, so the logical being hit by
the SETLL would have been
empty. During those tests, the program performed very fast. 55,000+ records
in seconds. Now, it is
only doing a dozen records a second.

Anybody seen any instances where SETLL performs very poorly?

Thanks,

Charles Wilt
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307
wiltc@xxxxxxxxxx <mailto:wiltc@xxxxxxxxxx>



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