How we think about Threads’ iOS performance

What this post added

This post details how the Threads iOS team addresses performance challenges during rapid growth. It introduces key metrics like %FIRE, TTNC, and cPSR for monitoring image rendering, app startup/feed loading, and content publishing success rates, respectively. The post also describes the development and use of a new tool called SLATE for consistent measurement of navigation latency. A case study highlights the adoption of GraphQL for network requests, validated by SLATE, to improve efficiency over the previous REST-based stack.