On Fri, 23 Apr 2021 11:27:27 +0200 Lorenzo Bianconi <lorenzo@xxxxxxxxxx> wrote: > Rely on netif_receive_skb_list routine to send skbs converted from > xdp_frames in cpu_map_kthread_run in order to improve i-cache usage. > The proposed patch has been tested running xdp_redirect_cpu bpf sample > available in the kernel tree that is used to redirect UDP frames from > ixgbe driver to a cpumap entry and then to the networking stack. > UDP frames are generated using pkt_gen. Packets are discarded by the > UDP layer. > > $xdp_redirect_cpu --cpu <cpu> --progname xdp_cpu_map0 --dev <eth> > > bpf-next: ~2.35Mpps > bpf-next + cpumap skb-list: ~2.72Mpps > > Rename drops counter in kmem_alloc_drops since now it reports just > kmem_cache_alloc_bulk failures > > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
