Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide

Poor performance

While not necessarily caused by bugs, poor performance is associated with excessive run-time and memory requirements. One thing to keep in mind is that many debugging techniques (such as enabling SUBSCRIPTRANGE) tend to decrease performance.

One feature that can increase performance is the OPTIMIZE compile-time option (see OPTIMIZE). For additional information on improving program performance, see Improving performance.


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