Home > CICS, CICS TS, CMCI, performance, WLM, WUI, youtube > CICS TS 4.1 WLM performance demo

CICS TS 4.1 WLM performance demo

If you have any interest in CICSPlex SM Workload Management (WLM) on CICS you should go check out this new YouTube video now! I’ll leave the video description itself to explain the contents.

This nine minute demo by Dave Williams of CICS Development in Hursley, UK demonstrates some of the performance improvements made in CICS TS V4.1 when using the new Sysplex Optimized WLM function. Throughputs for similar workloads are compared between CICS TS V3.2 and CICS TS V4.1 with Sysplex Optimized WLM switched on and off.

Just to give a little extra background, Dave was the chief developer and does an excellent job here of clearly describing the new improvements.

A slight confession, I wrote the tool the video uses to analyse and chart the workloads. It is an internal IBM test tool, so you can’t get your hands on it, but if you would like to know more or you think it would be useful to you, let me know.

If you are interested in seeing more videos like this, direct from the development team, add a comment, with maybe a sentence or two about what you would like to hear about.


  • For more details on Sysplex Optimized WLM see here.
  • Dave used the term ‘Base table’ in the clip. A ‘Base Table’ is more commonly known as a Resource Table. The new table Dave referred to is WLMATARG.
  • The tests performed here show an artificial workload running 10,000 transactions using the Distributed Routing mechanism. The results you achieve with your workloads in your environments may differ.
Categories: CICS, CICS TS, CMCI, performance, WLM, WUI, youtube
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