For certain lower-end x86 boxes I test, I noticed WG 0.0.20180708 w/NAPI actually slowed down receive performance.
Jason recently added "receive: use gro call instead of plain call" [1] commit, which made a big performance improvement. Here is a test on a PC Engines APU2 ... pbx4: AMD GX-412TC SOC (1 GHz, 4-core) Ethernet controller: Intel Corporation I210 pbx: Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz Ethernet controller: Intel Corporation I211 # uname -a Linux pbx4 3.16.57-astlinux #1 SMP PREEMPT Mon Jul 9 17:25:31 CDT 2018 x86_64 GNU/Linux pbx ~ # iperf3 -s pbx4 ~ # iperf3 -c 10.4.0.10 -P2 -R -- 0.0.20180625 -- [SUM] 0.00-10.04 sec 466 MBytes 390 Mbits/sec 162 sender [SUM] 0.00-10.00 sec 463 MBytes 389 Mbits/sec receiver -- 0.0.20180708 -- [SUM] 0.00-10.04 sec 301 MBytes 252 Mbits/sec 30 sender [SUM] 0.00-10.00 sec 300 MBytes 251 Mbits/sec receiver -- 0.0.20180708 w/napi_gro_receive patch -- [SUM] 0.00-10.04 sec 596 MBytes 498 Mbits/sec 92 sender [SUM] 0.00-10.00 sec 594 MBytes 498 Mbits/sec receiver -- Kudos Jason ! Lonnie [1] https://git.zx2c4.com/WireGuard/commit/?id=95951af7249912a4356b9a03cf3addc7e3f8f724 _______________________________________________ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard