News Feed is not only one of the most important products on Facebook, it’s also one of the most used content distribution systems on the internet today, serving up feeds of social data to more than 6% of the humans on the planet every day. We’ll walk through how the systems that power News Feed work at scale.

The Feed infrastructure started as an implementation of some relatively simple concepts, but over the years has accumulated a lot of new designs and tricks to make it exceptionally good at being efficient and reliable. It’s also evolved from a specialized service for powering the homepage to a general graph storage engine, which not only powers all the old and future products within Feed, but many other pages on the site as well. The talk will cover building distributed systems, in-memory databases, network topologies, aggregating social data, and everything in between.