How runtime options affect child enclaves

The child enclave gets its runtime options from one of the sources discussed in Specifying runtime options under CICS. The runtime options are completely independent of the creating enclave, and can be set on an enclave-by-enclave basis.

Some of the methods for setting runtime options might slow down your transaction. Follow these suggestions to improve performance:
  • If you need to specify options in CEEUOPT specify only those options that are different from system defaults.
  • Before putting transactions into production, request a storage report (using the RPTSTG runtime option) to minimize the number of GETMAINs and FREEMAINs required by the transactions.
  • Ensure that VS COBOL II transactions are not link-edited with IGZETUN and IGZEOPT, which are no longer supported and which cause an informational message to be logged. Logging this message for every transaction inhibits system performance. The sample user condition handler CEEWUCHA can be used to prevent this informational message from being logged. See the Enterprise COBOL for z/OS library. for more information.
Parent topic: Creating child enclaves with EXEC CICS LINK or EXEC CICS XCTL