Profiler to check plugin execution time
This is a simple perl script that parses
/var/log/nagios/status.dat and prints how long execution of each service type took sorting data by time - it both prints each individual service took on top and on the button in reverse order consolidates services with same names but on different hosts so you get an idea of data for this service on average.
This useful for performance tuning to find which plugins and checks are executing too long. Just run it and see what it does.