Tune the CICS Interface
Tune IBM® Connect:Direct® CICS® interface to enhance performance. Connect:Direct for z/OS® CICS interface exits are not "threadsafe” and may cause performance issues if this application is not isolated to a non-threadsafe AOR.
Actual resource usage varies according to the implemented configuration, including the number of DTF nodes that can be signed on to by the CICS interface, the number of subtasks defined per node, and other considerations, such as the types of commands executed.
You may want to tune your IBM Connect:Direct system, based upon guidelines provided to assist you in estimating the impact of Connect:Direct for z/OS on your CICS online environment for the file I/O buffers, auxiliary or main temporary storage, and transaction priorities and class assignments