Extended job runtimes for ICEGENER and DFORST after activation of CA Allocate
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Article ID: 187662
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Updated On:
Products
Allocate DASD Space and Placement
Issue/Introduction
After activation of CA Allocate in production environment, batch users experience extended job runtimes when using ICEGENER and DFSORT for example.
Environment
Release : 12.5
Component : CA Allocate DASD Space and Placement
Cause
Performance degration and extended runtime can be caused by LSAPCE calls in the ASR routine.
Resolution
Limit the number of LSPACE calls in the ASR routine for larger Data sets for example or replace LSPACE with DIF processing.
Following sample ASR code to use DIF in ALLOC, DEFINE, EOV, EOV_VSAM and EXTEND environments:
FILTLIST &DIFENVIR INCLUDE(AL*,D*,E*)
IF &VAMENVIR = &DIFENVIR THEN DO
SET &REDUCE_BY = 10
SET &MINIMUM_PERCENT = 10
END
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