The VS COBOL II LIBKEEP runtime option was used to enhance runtime performance by maintaining the partition level of the runtime environment between calls to COBOL main programs. The Language Environment runtime environment does not support the LIBKEEP runtime option.
You can obtain similar performance for the main program environment by using the Language Environment LRR (Library Routine Retention) facility. To use LRR in an IMS region, you need to put CEELRRIN in the IMS preinit list. For details on how to do this, see Language Environment Customization.
To use LRR within an application program, you call an assembler program that contains the CEELRR macro.
Language Environment provides two sample programs: one to initialize LRR and one to terminate LRR. The sample program names are CEELRRIN and CEELRRTR, and they are in the SCEESAMP library.
For information on LRR, see the Language Environment Programming Guide and the customization book for your platform.