On Mon, Mar 27, 2023 at 4:48 PM Watson Ladd <watsonbl...@gmail.com> wrote
> > No. XDP is acting as a firewall and Tubular is mapping packets to sockets. > The TCP is handled by the kernel and given to the application through the > usual interfaces. > > That's different from DPDK where the application is completely responsible > for all handling of packets and the kernel just shoves a ring buffer at it. > > That sort of offload exists, but I don't think it's terribly common. > Obviously how you measure it is hard and we mostly have anecdotes. > It's in the definition, right? https://en.wikipedia.org/wiki/Express_Data_Path The point is to bypass the typical kernel networking. I agree that there are different ways of doing this, and this method reuses more kernel code than others. But it's still not using the kernel code in the way that you would get by default. thanks, Rob
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