Mobile performance: Tooling infrastructure at Facebook

What this post added

This post introduces CT-Scan, a performance monitoring and prediction platform developed to address mobile performance regressions. It details the challenges of managing thousands of weekly code changes in complex mobile apps and outlines the design principles and implementation phases (development, staging, production) of CT-Scan. The post highlights the system's ability to detect, diagnose, and prevent performance regressions by capturing key metrics, performing statistical and machine learning analyses, and providing actionable insights to engineers, ultimately aiming to maintain development speed while improving app performance.