Module Format for Programs and Panels › CICS Considerations › Loading the Modules at Startup

Loading the Modules at Startup

You can control whether all the load modules are loaded when the in-core LMT is built at PLT startup by setting the PLTLOAD parameter of the IDOPTSCB macro in the IDOPTS source.

You can assign the following values to the PLTLOAD parameter.

• YES-Determines whether the load modules associated with an entry added to the in-core LMT during CICS PLT processing are loaded into CICS. An error message will be issued for any missing or invalid modules.
• NO-Bypasses the loading of the modules when the entry is added to the in-core LMT during CICS PLT processing.

In most instances, you want to set the PLTLOAD parameter to NO. Because it bypasses the loading of the user program and panel load modules, it significantly reduces the amount of time CICS becomes available to your users after startup. A value of NO does not affect how the in-core LMT is built or the PPT entries.

If PLTLOAD=YES, all program modules, including the symbol table of every program that is only loaded in the case of a runtime error, remains resident in RDSA . This could amount to a lot of storage never accessed by the environment.