On Tue, 29 Sep 2020 10:28:05 +0900 Joonsoo Kim <js1304@xxxxxxxxx> wrote: > > What about manually emptying the pcplists beforehand? > > It also increases the probability. schedule() or interrupt after emptying but > before the allocation could invalidate the effect. Keep local interrupts disabled across the pcp drain and the allocation attempt. > > Or byassing the pcplists for this caller and calling __rmqueue() directly? > > What this patch does is this one. I meant via a different function rather than by adding overhead to the existing commonly-used function.
