This is the UNIX System Services post-process initiation exit, and it must be enabled for Application Performance Analyzer to measure USS child processes of a process that is currently being measured by Application Performance Analyzer. The exit requires no PARMLIB changes. Application Performance Analyzer will dynamically define the exit when USSSpwnEnable=YES is specified on the CONFIG SAMPLE statement.
The following message will be issued if the exit has been successfully defined:
CAZ1221I CAZ0-MAIN Module CAZ00991 added to exit BPX_POSPROC_INIT
After applying any maintenance or installing a new release of Application Performance Analyzer, do one of the following actions:
SETPROG EXIT,DELETE,EXITNAME=BPX_POSPROC_INIT,MODNAME=CAZ00991
Then restart the Application Performance Analyzer-started task, which will load the new Application Performance Analyzer exits.
For more information about this exit see z/OS UNIX System Services Programming: Assembler Callable Services Reference.