43.3. Starting and Stopping OProfile
			To start monitoring the system with OProfile, execute the following command as root:
		
opcontrol --start
opcontrol --start
			Output similar to the following is displayed:
		
Using log file /var/lib/oprofile/oprofiled.log Daemon started. Profiler running.
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
opcontrol --shutdown