The load notification user exit provides customers who are running applications with LRR active the ability to improve performance by preventing the use count for frequently used modules from dropping below one.

See z/OS Language Environment Programming Guide for more information about load notification user exit.

To create a load notification user exit:

1. Create an assembler language routine that conforms to the syntax described in z/OS Language Environment Programming Guide.
2. Assemble and link-edit your exit into a library that Language Environment® can access at runtime, such as CEE.SCEERUN.
3. Code a CEEBLNUE CSECT that contains a CEEXLRT macro identifying your exit. The macro specifies your routine as a load notification user exit. The CEEBLNUE CSECT can be found in source file CEE.SCEESAMP(CEEBLNUE). See CEEBLNUE CSECT for more information.
4. Replace the existing CEEBLNUE CSECT with the updated CEEBLNUE as described in the following sections.