This IBM® Redbooks® publication gives a broad understanding of several important concepts that are used when describing IBM CICS® Transaction Server (TS) for IBM z/OS® (CICS TS) performance. This publication also describes many of the significant performance improvements that can be realized by upgrading your environment to the most recent release of CICS TS.
This IBM Redbooks publication targets the following
Systems Architects wanting to understand the performance
characteristics and capabilities of a specific CICS TS
Capacity Planners and Performance Analysts wanting to understand
how an upgrade to the latest release of CICS TS affects their
Application Developers wanting to design and code highly
optimized applications for deployment into a CICS TS
This publication covers the following topics:
A description of the factors that are involved in the
interaction between IBM z Systems™ hardware and a z/OS
A definition of key terminology that is used when describing the
results of CICS TS performance benchmarks.
A presentation of how to collect the required data (and the
methodology used) when applying Large Scale Performance Reference
(LSPR) capacity information to a CICS workload in your
An outline of the techniques that are applied by the CICS TS
performance team to achieve consistent and accurate performance
High-level descriptions of several key workloads that are used
to determine the performance characteristics of a CICS TS
An introduction to the open transaction environment and task
control block (TCB) management logic in CICS TS, including a
reference that describes how several configuration attributes
combine to affect the behavior of the CICS TS dispatcher.
Detailed information that relates to changes in performance
characteristics between successive CICS TS releases, covering
comparisons that relate to CICS TS V4.2, V5.1, V5.2, and
The results of several small performance studies to determine
the cost of using a specific CICS functional area.