On Wed, 2016-12-07 at 18:37 +0100, Hannes Frederic Sowa wrote: > I had the same idea while discussing that with Paolo, merely using an > *atomic_t = kmalloc(sizeof(atomic_t)) out of band of the socket. > > My fear was that those could be aggregated by the slab cache into one > cache line, causing even more heating on cachelines.
For hot stuff, better use kmalloc(max_t(size_t,
L1_CACHE_BYTES,
sizeof(...))
to avoid false sharing, unless this is per cpu data of course.
