CICS TS V5.4 performance report

CICS® TS for z/OS®, Version 5.4 introduces various technical and operational capabilities, including improvements that provide performance benefits over previous CICS releases. This report gives a performance view of the release and provides performance benchmarks that compare this release with CICS TS 5.3.

The performance report for CICS TS 5.4 includes:

• Key performance benchmarks compared with CICS TS 5.3.
• An outline of improvements made regarding the threadsafe characteristics of the CICS TS run time.
• Details of the changes that are made to performance-critical CICS initialization parameters, and the effect of these updates.
• A description of all the updated statistics and monitoring fields.
• A description of the performance class monitoring field contents for various types of Liberty requests.
• High-level views of new functionality that was introduced in CICS TS 5.4, including performance benchmark results where appropriate.

For a definition of performance terms used in this report, see Performance terminology. A description of the test methodology that is used can be found in Testing with performance workloads. For a full description of the workloads used, see Workload descriptions.

Where reference is made to an LSPR processor equivalent, the indicated machine type and model can be found in the large systems performance reference (LSPR) document. For more information about obtaining and using LSPR data, see Large Systems Performance Reference.

Workload environment

When compiling the results for this chapter, the workloads were executed on an IBM z13 model NE1 (machine type 2964). A maximum of 32 dedicated CPs were available on the measured LPAR, with a maximum of six dedicated CPs available to the LPAR used to simulate users. These LPARs are configured as part of a parallel sysplex. An internal coupling facility was co-located on the same central processor complex (CPC) as the measurement and driving LPARs, connected using internal coupling peer (ICP) links. An IBM System Storage DS8870 (machine type 2424) was used to provide external storage.

This report presents the results of several performance benchmarks when executed in a CICS TS 5.4 environment. Unless otherwise stated in the results, the CICS TS 5.4 environment was the code available at GA time. Several of the performance benchmarks are presented in the context of a comparison against CICS TS 5.3. The CICS TS 5.3 environment contained all PTFs issued before 24th February 2017. All LPARs used z/OS V2.2.