High memory usage? - cached

I have nothing special running on my Turris. Standard 5.1.2 version. No problems, but why this high memory utilization?

Here is the memory log on the timeline:

What happens saturday night? Do I need to do something on the high cached memory figure?

“Cached” is essentially free; even better than free. There’s probably no point in me trying to explain in my words, so see e.g. https://www.linuxatemyram.com


thanks for your quick reply. That makes sense and sorry for being a newbie on Linux :wink:

No problem :slight_smile: (avoiding too short post)

Thanks for explanation, I think it’s not generaly known.