[Impossible]

On console and embedded the OS is either non-existent or gives your game guarantees about when it will schedule something and how often. Hardware obviously gives you way more control, but a baremetal raspberry pi project, Arduboy, console homebrew, etc can give you some of that control back in software. Awesome project btw

[roblabla]

As an example of this, on the Nintendo Switch, games run on three cores dedicated to the game, while the rest of the OS tasks run on the fourth core. Furthermore their scheduler gives precise guarantees about the scheduling order of threads spawned on the same core. It makes sustained 60fps achievable through careful design.