We’re excited to share that we have made significant improvements to UDP throughput on Linux, specifically for applications like HTTP/3 and QUIC. These changes build on our previous work to increase TCP throughput over wireguard-go. UDP is ideal for real-time applications where dropping a packet is preferable to delayed retransmission. With the integration of segmentation offloads, we have seen a 4x increase in UDP throughput over Tailscale on bare metal Linux. These improvements are now available in Tailscale v1.54. For more detailed results, refer to the full article.
https://tailscale.com/blog/quic-udp-throughput/