Brien introduces a new test infrastructure that can run automated mobile performance tests continuously in real user conditions — networks and locations — and capture data about the network, video, audio, and device for performance analysis. He covers how they designed the infrastructure to be nimbly deployed, challenges with reliability, and technical decisions in implementing the infrastructure. In addition, he explains an analysis framework they developed to export areas of interest in the data, including network and video heuristics. Finally, he walks through user case studies to show how the framework is used to diagnostics real-world performance issues in the network, video streaming, and more.