Hello Umair,

One option is using a profiling tool, for example the following one
http://memprof.typerex.org <http://memprof.typerex.org/>

Best,
Van Chan Ngo

> On Jan 30, 2017, at 11:39 AM, Umair Siddique <umair.hvg@gmail.com> wrote:
> 
> Dear All, 
> 
> 
> I am wondering  what is the best way to find the time and memory usage (in words or bytes) of an Ocaml function, e.g., Factorial) on MAC?
> 
> 
> Thanks 
> 
> 
> Umair