From: Alexei Starovoitov Date: Thu, 18 Apr 2019 02:09:25 +0000 (-0700) Subject: Merge branch 'bulk-cpumap-redirect' X-Git-Tag: v5.2-rc1~133^2~132^2~9 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=193d0002ef04d331466f4d211d008ff8257bfa6a;p=thirdparty%2Fkernel%2Flinux.git Merge branch 'bulk-cpumap-redirect' Jesper Dangaard Brouer says: ==================== This patchset utilize a number of different kernel bulk APIs for optimizing the performance for the XDP cpumap redirect feature. Benchmark details are available here: https://github.com/xdp-project/xdp-project/blob/master/areas/cpumap/cpumap03-optimizations.org Performance measurements can be considered micro benchmarks, as they measure dropping packets at different stages in the network stack. Summary based on above: Baseline benchmarks - baseline-redirect: UdpNoPorts: 3,180,074 - baseline-redirect: iptables-raw drop: 6,193,534 Patch1: bpf: cpumap use ptr_ring_consume_batched - redirect: UdpNoPorts: 3,327,729 - redirect: iptables-raw drop: 6,321,540 Patch2: net: core: introduce build_skb_around - redirect: UdpNoPorts: 3,221,303 - redirect: iptables-raw drop: 6,320,066 Patch3: bpf: cpumap do bulk allocation of SKBs - redirect: UdpNoPorts: 3,290,563 - redirect: iptables-raw drop: 6,650,112 Patch4: bpf: cpumap memory prefetchw optimizations for struct page - redirect: UdpNoPorts: 3,520,250 - redirect: iptables-raw drop: 7,649,604 In this V2 submission I have chosen drop the SKB-list patch using netif_receive_skb_list() as it was not showing a performance improvement for these micro benchmarks. ==================== Signed-off-by: Alexei Starovoitov --- 193d0002ef04d331466f4d211d008ff8257bfa6a