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The long road to lazy preemption in the Linux CPU scheduler

(lwn.net)
218 points chmaynard | 1 comments | 19 Oct 24 07:29 UTC | HN request time: 0.001s | source
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hamilyon2 ◴[19 Oct 24 12:32 UTC] No.41887445[source]▶
How tight is scheduler coupled to the rest of kernel code?

If one wanted to drastically simplify scheduler, for example for some scientific application which doesn't care about preemption at all, can it be done in clean, modular way? And will be any benefit?

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1. kevin_thibedeau ◴[19 Oct 24 14:11 UTC] No.41887861[source]▶
I'd just use RT Linux. That has its own basic scheduler with the kernel scheduler running as the idle task. Real time tasks get priority over everything else.