Björn Töpel <bjorn.topel@xxxxxxxxx> writes: > Hi XDP-folks, > > This two patch series contain two optimizations for the > bpf_redirect_map() helper and the xdp_do_redirect() function. > > The bpf_redirect_map() optimization is about avoiding the map lookup > dispatching. Instead of having a switch-statement and selecting the > correct lookup function, we let bpf_redirect_map() be a map operation, > where each map has its own bpf_redirect_map() implementation. This way > the run-time lookup is avoided. > > The xdp_do_redirect() patch restructures the code, so that the map > pointer indirection can be avoided. > > Performance-wise I got 3% improvement for XSKMAP > (sample:xdpsock/rx-drop), and 4% (sample:xdp_redirect_map) on my > machine. > > More details in each commit. > > @Jesper/Toke I dropped your Acked-by: on the first patch, since there > were major restucturing. Please have another look! Thanks! Will do! Did you update the performance numbers above after that change? -Toke
