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High-Speed Packet Transmission in Go: From net.Dial to AF_XDP — How can you send as many packets per second as possible from a Linux machine using Go? Andree wanted to find out. As he says, “it should be a fun read if you like networking, Go, and benchmarking”, but you can go straight to the code, if you prefer.

Recently, I developed a Go program that sends ICMP ping messages to millions of IP addresses. Obviously I wanted this to be done as fast and efficiently as possible. So this prompted me to look into the various methods of interfacing with the network stack and sending packets, fast! It was a fun journey, so in this ...