Performance Issues

You can improve the performance of an EZASOKET CICS application deployed to Enterprise Server using either or both of these configuration options:

Supress messages

By default the CICS CSKL listener puts out messages to the console when a client application connects to run a transaction. For example:

000000 16482581      12472 EZATEST  CASOP0000I 01 of 02 From (,,CSKL) EZY1325I 
00/00/00 16:48:25 START SUCCESSFUL TRANID=EZT1 PARTNER INET  
000000 16482601      12472 EZATEST  CASOP0000I 02 of 02 From (,,CSKL) ADDR=127.0.0.1 
PORT=  8087

With many clients, these messages can cause unwanted overhead.

You can suppress the generation of these messages using the EZAC ALTER CICS transaction. Run EZAC ALT CICS to set SMSGSUP as shown here:

Turn off Terminal control

The default configuration for a CICS enterprise server region dictates that terminal control and send operations are buffered, which improves performance. To be sure that this setting is configured for optimal performance, go to the Enterprise Server Administration CICS SIT page for your enterprise server region, and see that the Terminal box is checked.