How nonresident programs affect performance

If several users use QMF, removing QMF programs from resident storage might affect QMF and CICS performance, because QMF must be loaded each time a user starts the program. However, if the needs of your installation require that you remove these programs from resident storage, change the definition for QMF programs from resident to nonresident.

You can specify RESIDENT=NO on the CEDA DEFINE PROGRAM command to interactively change the program definition in the CSD, or specify RES=NO on the DFHPPT TYPE=ENTRY macro to change the value in the program processing table (PPT).

For more information on the performance implications of nonresident programs, see the CICS/MVS Performance Guide or the CICS/VSE Performance Guide .