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Analyzing run-time behavior

During the experiment

While the experiment is running, there are various operations that may be performed. As stated earlier, you can turn on and off logging. You can also put a ``mark'' in the log. Basically, marks are records inserted into the logs that can be read back when reading the logs. See ``Analyzing flow-profile results for analysis of run-time flow'' for information on using marks when reading.

To turn off logging, call

   fprof -O log1 [log2]...
this will tell each of the loggers corresponding to the named logs to stop logging. Conversely, fprof -o turns logging on. Let's look at an example:
   $ fprof -s -C StartState=off,Accuracy=normal travel &
   963
   $
   Reading in data . . .
   fprof -o /tmp/out.963
   $
   Processing data
   done.

This will make it such that the "Reading in data . . ." portion of the program is not included in the log.

To place a mark in a log, use

   fprof -m log1 [log2]...


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