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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
80051
File main(module)."/users/guest/demo/debug_env/hp64767/main.c"
Symbolic Reference at _interrupt_sim
To Address
800F7
File main(module)."/users/guest/demo/debug_env/hp64767/main.c"
Symbolic Reference at interrupt_sim+A6
Number of intervals
Maximum Time 592036.400 us
Minimum Time 39.760 us
Avg Time
63628.824 us
Statistical summary - for
Stdv 138114.65
95% Confidence 11.94% 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).
1270
10 traces
0.00%
14.72%
********
4.80%
***
0.00%
24.88%
*************
20.47%
**********
10.16%
*****
0.00%
5.04%
***
9.69%
*****
5.12%
***
5.12%
***
0.00%
Duration Performance Measurements
261
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