Possibly related talk at FOSDEM two weeks ago: https://fosdem.org/2023/schedule/event/sched_tracing/ https://fosdem.org/2023/schedule/event/sched_tracing/ The

Possibly related talk at FOSDEM two weeks ago: https://fosdem.org/2023/schedule/event/sched_tracing/ https://fosdem.org/2023/schedule/event/sched_tracing/ The talk is ostensibly about generating graphs, but it also describes a patch to make Linux prefer the previously-used core for any task, to make massively parallel tasks not jump around and end up with two threads on the same core.