Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Compiler and Runtime Migration Guide


Performance consideration when running OS/VS COBOL programs

If most of the programs scheduled in your IMS region are OS/VS COBOL programs, a performance benefit might be achieved by specifying lower values for the Language Environment storage related runtime options. For example, you could use the following storage values:
 STACK(16K)
 HEAP(4K,4K,ANY,4K,4K)
 BELOWHEAP(4K)
 ANYHEAP(4K)

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