We replaced @mozilla Firefox’s QUIC UDP I/O stack with a modern memory-safe implementation using quinn-udp. Instead of limited and dated system calls like sendto and recvfrom, Firefox now uses modern OS specific system calls across all major platforms, resulting in HTTP/3 QUIC throughput improvements when CPU bound, and enabling QUIC ECN support across all major platforms.
max-inden.de/post/fast-udp-io-…
Fast UDP I/O for Firefox in Rust
Motivation Around 20% of Firefox’s HTTP traffic today uses HTTP/3, which runs over QUIC, which in turn runs over UDP. This translates to substantial UDP I/O activity. Firefox uses NSPR for most of its network I/O.Max Inden

daniel:// stenberg://
in reply to mxinden • • •mxinden
in reply to daniel:// stenberg:// • • •GitHub - mozilla/neqo: Neqo, the Mozilla Firefox implementation of QUIC in Rust
GitHubdaniel:// stenberg://
in reply to mxinden • • •