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Making Software Performance Measurements
To initialize duration performance measurements
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
Restoring the Current Measurement
The performance_measurement_initialize restore command allows you
to restore old performance measurement data from the perf.out file in the
current directory.
If you have not exited and re-entered emulation, you can add traces to a
performance measurement simply by entering another
performance_measurement_run command. However, if you exit and
re-enter the emulation system, you must enter the
performance_measurement _initialize restore command before you
can add traces to a performance measurement. When you restore a
performance measurement, make sure your current trace command is
identical to the command used with the restored measurement.
The restore option checks the emulator software version and will only work if
the perf.out files you are restoring were made with the same software version
as is presently running in the emulator. If you ran tests using a former
software version and saved perf.out files, then updated your software to a
new version number, you will not be able to restore old perf.out
measurement files.
Examples
To initialize the duration measurement:
performance_measurement_initialize duration
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