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System Performance Analysis (SPA) Software
System Performance Analysis Software
Operating characteristics
The following describes the operating characteristics of the System
Performance Analysis software for the three SPA measurement modes.
State Overview
The State Overview mode displays a bar chart of a label’s state value
versus the relative number of occurrences of each value in the defined
range of the label. State Overview is available on any label defined in
the Format Specification.
•The X axis is the defined range for the specified label which is divided into
256 buckets.
•The range of the specified label is user-definable.
•The Y axis is the relative number of occurrences in each bucket.
•The maximum value of the Y axis is constantly updated to reflect th e
number of occurrences in the bucket that has the most occurrences, and is
displayed as "Max count".
•The total number of states sampled for the selected label is presented as
Total count. This includes states that may be outside the user-specified
Xaxis range.
•Two markers are available on the X axis to determine the range of a bucket
and number of occurrences in any bucket.
•Choice of base for a specified label is user-definable.