[Const-me]

> It actually is the same thing that being seen from different perspective

Absolutely, but these perspectives aren’t equally useful, it depends on the user and their use case.

The real low-level thing reported by Linux is a useful perspective for kernel developers, and maybe for students learning about virtual memory management in operating systems.

However, the fake data reported by Windows task manager is the useful perspective for everyone else. I think 99% of people using these tools are in this category.

[BenjiWiebe]

The task manager in KDE (Ksysguard) does show RAM usage like Windows task manager does.

So a new user clicking System Monitor will get a RAM graph they understand.