On Thu, Dec 5, 2019 at 11:09 PM <yang_y...@163.com> wrote: > > From: Yi Yang <yangy...@inspur.com> > > Current netdev_linux_rxq_recv_tap and netdev_linux_rxq_recv_sock > just receive single packet, that is very inefficient, per my test > case which adds two tap ports or veth ports into OVS bridge > (datapath_type=netdev) and use iperf3 to do performance test > between two ports (they are set into different network name space). > > The result is as below: > > tap: 295 Mbits/sec > veth: 207 Mbits/sec > > After I change netdev_linux_rxq_recv_tap and > netdev_linux_rxq_recv_sock to use batch process, the performance > is boosted by about 7 times, here is the result: > > tap: 1.96 Gbits/sec > veth: 1.47 Gbits/sec > > Undoubtedly this is a huge improvement although it can't match > OVS kernel datapath yet. > > FYI: here is thr result for OVS kernel datapath: > > tap: 37.2 Gbits/sec > veth: 36.3 Gbits/sec > > Note: performance result is highly related with your test machine > , you shouldn't expect the same results on your test machine.
Hi Yi Yang, Thanks for the patch, it's amazing with so much performance improvement. I haven't reviewed the code but Yifeng and I applied and tested this patch. Using netdev-afxdp + tap port, we do see performance improves from 300Mbps to 2Gbps in our testbed! Will add more feedback next week. William _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
