For a project I am currently working on, the client would like some kind of "proof" of efficiency for documentation purposes. I would like to be able to show the "time" it takes for the processes to run. It was suggested to me that Perl has a nanosecond timer function that could be of use.
Does anyone out there have some experience with this? Or better, does anyone know of a different good way to do this? As far as I can tell, the code itself is fairly fast as-is, with little room for improvment. But $client seems to want some documentation of proof.