You need to set "Log Level" for both server and vhost to "DEBUG".
		
		
	 
 Now i get this:
2007-04-10 00:14:20.882	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:25.886	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:30.890	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:35.894	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:40.898	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:45.903	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:50.907	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:14:55.911	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:15:00.915	DEBUG	Failed to execute 'mpstat' command: No such file or directory
2007-04-10 00:15:05.920	DEBUG	Failed to execute 'mpstat' command: No such file or directory