The DDoS improvements[1] reads like it was a fun adventure.

This series is the result of careful analysis of UDP stack, to optimize the receive side, especially when under one or several UDP sockets are receiving a DDOS attack.

I have measured a 47 % increase of throughput when using IPv6 UDP packets with 120 bytes of payload, under DDOS.

[1]: https://www.phoronix.com/news/Linux-6.18-DDoS-Improvement