Good material for understanding linux memory management

https://techtalk.intersec.com/2013/07/memory-part-1-memory-types/

Key concepts:

We can classify it through two axis: the first axis is whether memory is private (specific to that process) or shared, the second
axis is whether the memory is file-backed or not (in which case it is said the be anonymous).

	Private	Shared
Anonymous	1 stack malloc() mmap(ANON, PRIVATE) brk()/sbrk() 1 2 3 4 stack malloc() mmap(ANON, PRIVATE) brk()/sbrk()	2  mmap(ANON, SHARED) 1 mmap(ANON, SHARED)
File-Backed	3 mmap(fd, PRIVATE) binary/shared libraries 1 2 mmap(fd, PRIVATE) binary/shared libraries	4 mmap(fd, SHARED) 1 mmap(fd, SHARED)