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Making Software Performance Measurements
To initialize activity performance measurements
Initialization with Local Symbols
When the performance_measurement_initialize command is entered
with the local_symbols_in option and a source file name, the symbols
associated with that source file become the address ranges for which activity
is measured. If the symbols database is not loaded, an error message will
occur telling you that the source filename symbol was not found.
You can also use the local_symbols_in option with procedure symbols; this
allows you to measure activity related to the symbols defined in a single
function or procedure.
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.
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