2. PERFORMANCE REPORTING ANALYSIS › 2.7 Graphic Analysis › 2.7.1 CPU Graphs › 2.7.1.2 CPU Busy by Service Class

2.7.1.2 CPU Busy by Service Class

GRAPHIC RESULTS

This graphic analysis provides a stacked vertical bar chart
of CPU utilization by one or more Workload Manager service
classes.  You can display all active classes on the plot or
you can select several classes that are of particular
interest to you.  Overhead not measured as part of any
service class is spread evenly across all groups or classes
for reporting.

ANALYSIS GUIDELINES

Similar considerations come into play for environments that
are operating in "goal mode."  In this case, workload
granularity must be established through the definition of
service classes using the Workload Manager application.  The
Workload Manager is used to define both service classes that
dictate distribution of resources (Standard Service Classes)
and service classes designed for simply reporting utilization
and service measures (Report Service Classes).

Note: Having multiple applications running in the same
service class will restrict your ability to distinctly
analyze and manage the work on your system.

The detailed behavior of workloads and the system influences
that may be affecting them can be further analyzed using the
Installation Performance Specification analysis reports.