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[$] Revisiting the kernel's preemption model, part 2
lundi 2 octobre 2023, 18:30 , par LWN.net
In last week's episode, a need to preempt
kernel code that is executing long-running instructions led to a deeper reexamination of how the kernel handles preemption. There are a number of supported preemption modes, varying from 'none' (kernel code is never preemptible) to realtime (where the kernel is almost always preemptible). Making better use of the kernel's preemption machinery looked like a possible solution to the immediate problem, but it seems that there are better options in store. In short, kernel developers would like to give the scheduler complete control over CPU-scheduling decisions.
https://lwn.net/Articles/945422/
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ven. 3 mai - 05:08 CEST
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