There are some scenarios where sockets are slower because of the movement across the userland-kernel boundary. Even with all of the tricks that have been develo

There are some scenarios where sockets are slower because of the movement across the userland-kernel boundary. Even with all of the tricks that have been developed over the years it can still be much, much, slower than some of the tools that have come out. Intel released DPDK, Windows Server 2016 had a similar thing called PacketDirect. It's an interesting read. I'm not finished with the video, so I don't know if this is the way that Apple went.