43.3. Starting and Stopping OProfile

To start monitoring the system with OProfile, execute the following command as root:

opcontrol --start

Output similar to the following is displayed:

Using log file /var/lib/oprofile/oprofiled.log Daemon started. Profiler running.

The settings in /root/.oprofile/daemonrc are used.

The OProfile daemon, oprofiled, is started; it periodically writes the sample data to the /var/lib/oprofile/samples/ directory. The log file for the daemon is located at /var/lib/oprofile/oprofiled.log.

To stop the profiler, execute the following command as root:

opcontrol --shutdown

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