Linux OS: /proc/[pid]/smaps vs /proc/[pid]/statm

Question

I would like calculate the memory usage for single process. So after a little bit of research I came across over smaps and statm.

First of all what is smaps and statm? W

Answer 1

I would suggest looking through 'top' command line source code. It gets all its info from /proc as well so jt may be a good reference.