-Trustiees are compiled on-the-fly into php code and store in file on disk +Trustees are compiled on-the-fly into php code and store in file on disk until next change of trustee file. Since it's just included in most times, -it's a great saveour of time, but it would benefit anyway from some +it's a great save our of time, but it would benefit anyway from some kind of PHP acceleration (like Zend Optimizer or APC).