From: Eric Dumazet <eric.duma...@gmail.com> Date: Wed, 28 Feb 2018 18:28:02 -0800
> How useful it is to report this information ? > > Given REUSEADDR and REUSEPORT, I really wonder what can be derived from > this counter. > > It seems its semantic is weak. To me none of this really matters. What matters is that iproute2 reported this via slabinfo for longer than a decade. It broke recently when SLAB started merging caches just like SLUB always did. So alternative to Stephen's patch is turning off SLAB cache merging for certain networking caches, which is definitely a non-starter. I have directed Stephen to handle the situation in this way.
