Performance Tip #1 - Boost the performance of your applications running in TXSeries!
Nageswararao V Gokavarapu 2700013B8D Visits (1009)
Here I would like to talk about a feature that could boost the performance of your applications running in TXSeries.
When you run any transaction on TXSeries region, the program will be loaded by CICSAS (application server process) and it executes the transaction. The program is further unloaded from memory post the completion of the transaction execution. There could be programs defined in the regions (such as a logging program) that might be invoked frequently and hence would make sense to have that program cached (preventing it from getting unloaded).
Program caching in TXSeries can be enabled through the ProgramCache attribute in RD and Resident attribute in the PD definition. The ProgramCacheSize attributes indicates the number of the programs to be cached in the CICS region and the Resident attribute specified if a given program (as defined in the PD) to be cached or not.