You can customize your BPXPRMxx member of SYS1.PARMLIB to provide the performance needed for the way your installation uses kernel services.

Table 1 lists the system-wide and process-level limits that can be set in BPXPRMxx. Not all of the statements are explained in this table; see the BPXPRMxx topic in z/OS MVS Initialization and Tuning Reference for a complete description of each statement. If you specify the SHRLIBMAXPAGES parameter, it will be accepted but will not have any impact on the system. The value that you specify will never be reached, because user-shared library objects are no longer supported.