How to reset memory in ubuntu?

Question

ubuntu

Hello everyone
Who knows how mmm to reset and reset (and not just clear) USED MEMORY in ubuntu? and is it even possible to do that?
thanks
ps
exactly used memory, not caches. It is necessary because there is an application that, under certain conditions, actively eats memory, and this cannot always be controlled. At critical moments, it would be nice to clear the contents of the application's memory. It's probably not possible, but it could be...

Answer 1

USED ​​MEMORY is the memory used. Close programs and usage will drop. Turn off your computer and USED MEMORY will become zero :)