Performance considerations

For optimal performance when using CEEUOPT, code only those options that you want to change. This action enhances performance by minimizing the number of options lines that Language Environment must scan. Options and suboptions that are to remain the same as the defaults do not need to be repeated. For example, if the only change you want to make is to define STACK with an initial value of 64K and an increment of 64K, include only that runtime option, as shown in the following example:

CEEUOPT CSECT
CEEUOPT AMODE ANY
CEEUOPT RMODE ANY
        CEEXOPT STACK=(64K,64K)  
   END