STACK

The allocation of the thread’s stack storage is controlled by this option. COBOL LOCAL-STORAGE data items, work areas for COBOL libraries, Assembler DSAs, and C or PL/I automatic variables generally use the STACK storage. To determine if you need to modify your storage allocations, rerun your application with the RPTSTG run-time option and review the storage report numbers to determine optimum storage sizes.

Refer to the IBM Language Environment Customization Manual for additional details for this option.