To optimize performance for each TSO/FOCUS user, place re-entrant and serially reusable FOCUS modules in the Extended Link Pack Area. All programs in the ELPA have corresponding entries in the LPA Directory, which is created at IPL. This both optimizes FOCUS performance and reduces total virtual storage requirements for each user.
Sample JCL for performing this procedure resides in members JFSALLPA, JFSCPLPA, JFSDELPA, and JFSCPBCK of the data set FOCCTL.DATA. For more information about these members, see Link Pack Area Sample JCL.
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