From: Eric Dumazet
Date: Fri, 14 Jun 2019 16:22:17 -0700
> Recent addition of per TCP socket rx/tx cache brought
> regressions for some workloads, as reported by Feng Tang.
>
> It seems better to make them opt-in, before we adopt better
> heuristics.
>
> The last patch adds high_order_alloc_dis
Recent addition of per TCP socket rx/tx cache brought
regressions for some workloads, as reported by Feng Tang.
It seems better to make them opt-in, before we adopt better
heuristics.
The last patch adds high_order_alloc_disable sysctl
to ask TCP sendmsg() to exclusively use order-0 allocations,
