From: Michal Hocko <mho...@kernel.org> Date: Tue, 27 Oct 2015 13:26:47 +0100
> On Mon 26-10-15 12:56:19, Johannes Weiner wrote: > [...] >> Or any other combination of pick-and-choose consumers. But >> honestly, nowadays all our paths are lockless, and the counting is an >> atomic-add-return with a per-cpu batch cache. > > You are still hooking into hot paths and there are users who want to > squeeze every single cycle from the HW. Yeah, you're basically probably undoing a half year of work by another developer who was able to remove an atomic from these paths. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
