WLM: Performance Indexes

This report helps you align goal achievement metrics with overall business performance measurements, such as the cost associated with system performance (for example, adequate response times).

This report analyzes how well Workload Manager (WLM) is doing with achieving its goals. The report shows the distribution of WLM performance indexes across eight performance index ranges. It provides a view of how often WLM goals are met (performance index equal to or less than 1) or missed (performance index greater than 1), and to what degree.

Figure 1. WLM: Performance Indexes example
WLM: Performance Indexes example
Source tables
[Presentation View].[WLM Service Class Period Performance Metrics]
[Presentation View].[WLM Service Class Period Usage/Delay Metrics]
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system
importance level
serviceclass period

The WLM: Performance Indexes report contains the following information:

system
The z/OS system id.
importance level
The WLM importance level that is assigned to a service class period.
serviceclass period
The WLM service class name and period. The concatenation of columns SERVICE_CLASS and SERV_CLASS_PERIOD.
SYSTEM_IMPLVL_SERVICECLASS_PERIOD
The concatenation of system, importance_level and serviceclass_period.
PI Bucket (<0.5)
The percentage of intervals analyzed where the PI was less than 0.5.
PI Bucket (0.5 – 0.9)
The percentage of intervals analyzed where the PI was greater than or equal to 0.5 and less than 0.9.
PI Bucket (0.9 – 1.1)
The percentage of intervals analyzed where the PI was greater than or equal to 0.9 and less than 1.1.
PI Bucket (1.1 – 3.0)
The percentage of intervals analyzed where the PI was greater than or equal to 1.1 and less than 3.0.
PI Bucket (3.0 – 5.0)
The percentage of intervals analyzed where the PI was greater than or equal to 3.0 and less than 5.0.
PI Bucket (5.0 – 10.0)
The percentage of intervals analyzed where the PI was greater than or equal to 5.0 and less than 10.0.
PI Bucket (>= 10.0)
The percentage of intervals analyzed where the PI was greater than or equal to 10.0.