Messages in this thread | | | Date | Sat, 8 Jan 2000 19:49:30 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: sched fixes 2.3.36 |
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On Sat, 8 Jan 2000, Alan Cox wrote:
>If you increase it above +1 bad things happen and tasks get starved unfairly >at least from testing with 2.1.x before 2.2. I dont think anything has changd
I didn't noticed anything of obviously bad here so far. Even in 2.2.x (without the active_mm information) such heuristic was going to do the wrong thing and maybe to advantage way too much threads against other tasks. IMHO with the reliable active_mm information we have in 2.3.x (so being sure to do the right thing) using a +5 should not hurt (maybe we could remove 4 points from the per-processor penality?).
It's a per-ARCH define so everybody can test the stuff on each arch and tune it to give us the best number :).
Andrea
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