Linux doesn't support program priorities?

Question

linux

Worth arch. Started video encoding (all percents with four eggs), through gnome-system-monitor set all chromium processes to the maximum priority, and ffmpegy to the minimum. But this did not change anything, you watch the video in the browser and it slows down. How to overcome it? That is, changing the priority did not give anything, although this rolled in the Shind.

Answer 1

Hm, in Linux it's not "priority" but "politeness" (Nice). Accordingly, a large nice value is "low priority", and a low or even negative value is "high priority" ("arrogance"). Have you confused anything? :)

Answer 2

It seems to me that the problem is not in the priorities of the processes, but in the priorities of the I / O streams. Try CFQ or AS schedulers. They prioritize I/O more conservatively.
https://sites.google.com/site/linuxoptimization/ho...
https://xakep.ru/2014/05/11/input-out-linux-planning/