Messages in this thread | | | Subject | Re: [PATCH] bpf: validate bpf_func when BPF_JIT is enabled | From | Björn Töpel <> | Date | Wed, 11 Sep 2019 12:39:07 +0200 |
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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
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