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P
Examples
Consider the following duration measurement report (generated with the commands
shown):
display trace depth 512 <RETURN>
trace after interrupt_sim start or interrupt_sim end
only interrupt_sim start or interrupt_sim end counting
time <RETURN>
performance_measurement_initialize duration <RETURN>
performance_measurement_run 10 <RETURN>
performance_measurement_end <RETURN>
!perf32 | more
Time Interval Profile
From Address
1014
File main(module)."/users/guest/demo/debug_env/hp64751/main.c"
Symbolic Reference at main.interrupt_sim
To Address
109E
File main(module)."/users/guest/demo/debug_env/hp64751/main.c"
Symbolic Reference at interrupt_sim+8A
Number of intervals
Maximum Time 648396.800 us
Minimum Time 65.640 us
Avg Time
67133.955 us
Statistical summary - for
Stdv 139265.45
95% Confidence 8.05% 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
10.1 ms
20 ms
20.1 ms
40 ms
40.1 ms
80 ms
80.1 ms
160 ms
160.1 ms 320 ms
320.1 ms 640 ms
640.1 ms 1.2 s
Chapter 8: Making Software Performance Measurements
Mean of the means (i.e., mean of the average times in each
m
time range).
2550
10 traces
0.00%
15.06%
********
0.00%
4.98%
***
15.02%
********
14.82%
********
14.94%
********
10.00%
*****
4.94%
***
9.57%
*****
4.86%
***
5.53%
***
0.27%
Duration Performance Measurements
291
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