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Making Software Performance Measurements
To interpret activity measurement reports
To interpret activity measurement reports
•
View the performance measurement report.
Activity measurements are measurements of the number of accesses (reads
or writes) within an address range. The reports generated for activity
measurements show you the percentage of analyzer trace states that are in
the specified address range, as well as the percentage of time taken by those
states. The performance measurement must include four traces before
statistics (mean and standard deviation) appear in the activity report. The
information you will see in activity measurement reports is described below.
Memory Activity All activity found within the address range.
Program Activity All activity caused by instruction execution in the
address range. Program activity includes opcode fetches and the cycles
that result from the execution of those instructions (reads and writes to
memory, stack pushes, etc.).
Relative With respect to activity in all ranges defined in the
performance measurement.
Absolute With respect to all activity, not just activity in those ranges
defined in the performance measurement.
Mean Average number of states in the range per trace. The following
equation is used to calculate the mean:
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