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Making Software Performance Measurements
To interpret duration measurement reports
Examples
Consider the following duration measurement report (generated with the
commands shown):
display trace depth 512
trace after interrupt_sim start or interrupt_sim
end only interrupt_sim start or interrupt_sim end
counting time
performance_measurement_initialize duration
performance_measurement_run 10
performance_measurement_end
!perf32 | more
Time Interval Profile
From Address
10A8
File main(module)."/users/guest/demo/debug_env/hp64782/main.c"
Symbolic Reference at interrupt_sim+8A
To Address
101E
File main(module)."/users/guest/demo/debug_env/hp64782/main.c"
Symbolic Reference at main.interrupt_sim
Number of intervals
Maximum Time 73297.920 us
Minimum Time 48230.400 us
Avg Time
55672.752 us
Statistical summary - for
Stdv 11442.64
95% Confidence 0.80% Error tolerance
Graph of relative percents
1 us 10 us
10.1 us 100 us
100.1 us 500 us
500.1 us 1 ms
1.001 ms 5 ms
5.001 ms 10 ms
282
2550
10 traces
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
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