minimal memory usage

I’m new in fvwm and main my aim to use fvwm is to make wm with minimal usage of memory. I installed minimal ubuntu (mini.iso) and then xorg and fvwm. Now I have minimal configuration of system. My question is following. What kind of commands or modules use maximal and minimal memory. Maybe my question has no sence or stupid I apologize in advance.

You can use ./configure to disable everything, including images.

Anything else is modular and can be disabled via fvwm at run time.

– Thomas Adam