WLM - Using SMF 99 for a More Granular Performance Analysis
Project and Program:
MVS,
MVS Performance
Tags:
Proceedings,
SHARE Sacramento 2018,
2018
The SMF 99 records contain a wealth of information related to WLM algorithm decisions. They were originally developed to trace WLM decisions, but over the years they have been expanded to provide insights into HiperDispatch, Capping, Group Capacity Limits, machine topology, and more. Most customers have the SMF 99 WLM decision records turned off due to their high volume. However, there are many reasons to turn these records on during performance debugging and analysis.
During this presentation, Peter Enrico will provide an introduction to the SMF 99 records, as well as show some very practical uses for these records and a number of performance insights these records will provide.-Peter Enrico-Enterprise Performance Strategies Inc.
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