WLM and CPU Critical Control ..... April 2nd ..... Sign up using this link

Buckle up, folks! As of z/OS 3.1, all WLM importance level 1 service class periods will be treated as CPU critical. Why buckle up? Because this change is one of the rare, incompatible changes made by IBM, and has the potential to negatively affect the WLM management of your environment. Luckily, there is an option to disable this incompatible change. However, there is a parameter to optionally disable this setting, if you feel the incompatible default may negatively impact the way WLM manages your workloads. During this webinar, Scott Chapman and Peter Enrico will provide a review of the WLM CPU critical control and discuss the changes made to z/OS 3.1 that, by default, causes all importance level 1 service class periods to be treated as CPU critical. They will also feature some Pivotor® reports to help you determine whether you will be positively or negatively affected by this change.

Pivotor Pointers ..... April 16th ..... Sign up using this link

This hour-long webinar is for people who might be interested in Pivotor, as well as current Pivotor customers who want a refresher on the user interface. Scott Chapman will demonstrate how Pivotor simplifies z/OS performance analysis while providing the toolset to support in-depth analysis. If you haven’t looked at Pivotor for a while, expect to see a few features you might have missed or forgotten about.

Back to Basics – Evaluating Latent Demand ..... May 7th ..... Sign up using this link

In the world of computers, you can think of latent demand as the demand for resources that cannot be met due to constraints. Workloads want to use the resources and have demand for those resources, but the environment does not have the ability to satisfy the demand. During this presentation, Peter Enrico will discuss the measurement and evaluation of latent demand in the mainframe environment. So, if you have a system that is being capped, weight enforced, or if your processor is just out of capacity, you will want to attend this session.

Understanding SMF 98 Locking Measurements ..... May 21st ..... Sign up using this link

The SMF 98 records are still a fairly new record, and there is still so much to learn about these high frequency measurements. One set of measurements in the SMF 98 record includes locking statistics for spin, suspend, and CML and Local locks. During this webinar, our special guest Bob Rogers will educate us on what spin, suspend, and CML and Local locks are and how they are used. Then, Peter Enrico will review the SMF 98 measurements related to these lock types so we can gain insight into delays and performance events due to the locking done by certain address spaces. This webinar will be jam-packed with information.