IEFUSI is a System Management Facilities (SMF) exit, and it must be enabled for the types of workloads on which Application Performance Analyzer will report. The IEFUSI exit point can be defined to SMF so that SMF will be called for the entire system, batch jobs, started tasks, and TSO logons. Enable IEFUSI by performing the following steps:
SYS(...,
EXITS(IEFUSI,...)) /* enable IEFUSI for the entire system */
SUBSYS(TSO,
EXITS(IEFUSI,...)) /* enable IEFUSI for TSO workloads */
SUBSYS(JES2,
EXITS(IEFUSI,...)) /* enable IEFUSI for JES2 Batch workloads */
SUBSYS(JES3,
EXITS(IEFUSI,...)) /* enable IEFUSI for JES3 Batch workloads */
SUBSYS(STC,
EXITS(IEFUSI,...)) /* enable IEFUSI for Started Tasks */
The recommended size for data spaces in the IEFUSI exit is 3GB with 20 data spaces. Data space limitations can prevent Application Performance Analyzer from producing on-line reports or batch printed reports. These recommendations allow for very large sample files.
When you set up SMFPRMxx correctly, the CAZ0 started task will inform you of each exit point that Application Performance Analyzer is using. For example, if you set up SMFPRMxx to take SMF exit IEFUSI for TSO users, then you would see a message similar to the following for SYSTSO:
CAZ1221I CAZ0-MAIN (UTCPLXSB) Module CAZ00990 added to exit SYSTSO.IEFUSI.
After applying any maintenance or installing a new release of Application Performance Analyzer, do one of the following actions:
SETPROG EXIT,DELETE,EXITNAME=SYS.IEFUSI,MODNAME=CAZ00990 /* for the entire system */
SETPROG EXIT,DELETE,EXITNAME=SYSJES2.IEFUSI,MODNAME=CAZ00990 /* for JES2 environment */
SETPROG EXIT,DELETE,EXITNAME=SYSJES3.IEFUSI,MODNAME=CAZ00990 /* for JES3 environment */
SETPROG EXIT,DELETE,EXITNAME=SYSTSO.IEFUSI,MODNAME=CAZ00990 /* for TSO logons */
SETPROG EXIT,DELETE,EXITNAME=SYSSTC.IEFUSI,MODNAME=CAZ00990 /* for Started Tasks */
SETPROG EXIT,DELETE,EXITNAME=BPX_POSPROC_INIT,MODNAME=CAZ00991
Then restart the started task CAZ0, which will load the new Application Performance Analyzer exits.
For more information about SMFPRMxx and its parameters, see z/OS® Initialization and Tuning Reference.
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