How Netflix Serves 800 Gb/s with FreeBSD Optimizations

HN points to it as the recorded talk behind the Netflix 800Gb/s slides and as a deep look at kernel-level optimizations for high throughput.

Netflix engineer Drew Gallatin's EuroBSDcon 2022 talk quantifies the older FreeBSD optimizations that let Netflix serve web traffic at 800Gb/s, including TSO, LRO, VM page cache zones, asynchronous sendfile and unmapped mbufs.