From: Jakub Kicinski <jakub.kicin...@netronome.com> Date: Thu, 9 Aug 2018 20:26:08 -0700
> It is not immediately clear why this is needed. The memory and > updating two sets of counters won't come for free, so perhaps a > stronger justification than troubleshooting is due? :S > > Netdev has counters for fallback vs forwarded traffic, so you'd know > that traffic hits the SW datapath, plus the rules which are in_hw will > most likely not match as of today for flower (assuming correctness). > > I'm slightly concerned about potential performance impact, would you > be able to share some numbers for non-trivial number of flows (100k > active?)? Agreed, features used for diagnostics cannot have a harmful penalty for fast path performance.