On Tue, 1 Aug 2023 10:03:44 +0800 Xuan Zhuo wrote: > > Virtio is either a SW > > construct or offloaded to very capable HW, so either way cost of > > creating an extra instance for DPDK or whatever else is very low. > > The extra instance is virtio-net? > > I think there is a gap. So let me give you a brief introduction of our case. > > Firstly, we donot use dpdk. We use the AF_XDP, because of that the AF_XDP is > more simpler and easy to deploy for the nginx. > > We use the AF_XDP to speedup the UDP of the quic. By the library, the APP just > needs some simple change. > > On the AliYun, the net driver is virtio-net. So we want the virtio-net support > the AF_XDP. > > I guess what you mean is that we can speed up through the cooperation of devices > and drivers, but our machines are public clouds, and we cannot change the > back-end devices of virtio under normal circumstances. > > Here I do not know the different of the real hw and the virtio-net. You have this working and benchmarked or this is just and idea? What about io_uring zero copy w/ pre-registered buffers. You'll get csum offload, GSO, all the normal perf features.
