From: Matthias Tafelmeier <matthias.tafelme...@gmx.net> Date: Thu, 29 Dec 2016 10:58:41 +0100
> Oftenly, introducing side effects on packet processing on the other half > of the stack by adjusting one of TX/RX via sysctl is not desirable. > There are cases of demand for asymmetric, orthogonal configurability. > > This holds true especially for nodes where RPS for RFS usage on top is > configured and therefore use the 'old dev_weight'. This is quite a > common base configuration setup nowadays, even with NICs of superior > processing > support (e.g. aRFS). > > A good example use case are nodes acting as noSQL data bases with a > large number of tiny requests and rather fewer but large packets as responses. > It's affordable to have large budget and rx dev_weights for the > requests. But as a side effect having this large a number on TX > processed in one run can overwhelm drivers. > > This patch therefore introduces an independent configurability via sysctl to > userland. This is missing a signoff.
