On Tue, 2017-11-28 at 10:34 +0100, Uladzislau Rezki wrote: > On Fri, Nov 24, 2017 at 07:46:30PM +0100, Mike Galbraith wrote: > > > My view is you're barking up the wrong tree: you're making the idle > > data SIS is using more accurate, but I question the benefit. That it > > makes an imperfect placement decision occasionally due to raciness is > > nearly meaningless compared to the cost of frequent bounce.
> Before sitting down and start testing, i just illustrated how we can > apply claim_wake_up to ilb asking community a specific view on it: > drawbacks, pros/cons, proposals etc. Even if you make the thing atomic, what is ILB supposed to do, look over its shoulder every step of the way and sh*t it's pants if somebody touches claim_wake_up as it's about to or just after it did something? If you intend to make all of LB race free, good luck. -Mike