On 2019-09-11 09:42, Yonghong Song wrote:
I am not an expert in XDP testing. Toke, Björn, could you give some suggestions what to test for XDP performance here?
I ran the "xdp_rxq_info" sample with and without Sami's patch: $ sudo ./xdp_rxq_info --dev enp134s0f0 --action XDP_DROP Before: Running XDP on dev:enp134s0f0 (ifindex:6) action:XDP_DROP options:no_touch XDP stats CPU pps issue-pps XDP-RX CPU 20 23923874 0 XDP-RX CPU total 23923874 RXQ stats RXQ:CPU pps issue-pps rx_queue_index 20:20 23923878 0 rx_queue_index 20:sum 23923878 After Sami's patch: Running XDP on dev:enp134s0f0 (ifindex:6) action:XDP_DROP options:no_touch XDP stats CPU pps issue-pps XDP-RX CPU 20 22998700 0 XDP-RX CPU total 22998700 RXQ stats RXQ:CPU pps issue-pps rx_queue_index 20:20 22998705 0 rx_queue_index 20:sum 22998705 So, roughly ~4% for this somewhat naive scenario. As for XDP performance tests; I guess some of the XDP selftests could be used as well! Björn
