2. PERFORMANCE REPORTING ANALYSIS › 2.7 Graphic Analysis › 2.7.2 Storage Graphs › 2.7.2.4 Storage Used by Workload Type-Pie Chart

2.7.2.4 Storage Used by Workload Type-Pie Chart

GRAPHIC RESULTS

This graphic analysis provides a pie chart of total storage
frames used by various defined workloads as well as the
percentage relative share for each workload.

ANALYSIS GUIDELINES

Total storage includes both central and expanded frames.
This chart can help you understand what workloads are your
major consumers of storage frames.  It can also help you
determine if storage usage by a competing workload appears
correlated with a period when other measurements reported
during that same period were degraded.

You can analyze memory use further using the Real Storage
Management analysis reports described in Section 2.2. Virtual
storage allocation patterns can have an effect upon processor
storage usage.  These can be analyzed using the Virtual
Storage Management analysis reports found in Section 2.5.
Each of these chapters can help you understand and manage
memory use by particular workloads.

SPECIAL CONSIDERATIONS

If you do not provide a workload description, as shown in
Section 2.7.6.3, each performance group or service class will
be treated as a separate workload.  This may provide so many
unique categories that SAS/GRAPH will shift from using a pie
chart to using a horizontal bar chart.  While a horizontal
bar chart prevents the loss of information from the chart,
you will probably find analysis and reporting more meaningful
if you describe workloads.