Explore Feedback Driven Optimisation (FDO) in this 58-minute Linux Foundation conference talk. Delve into the history, challenges, and recent advancements of this code optimization technique. Learn about AutoFDO, a new approach originating from Google, and its implementation in GCC and LLVM. Discover real-life examples of successful FDO deployments and gain insights into performance analysis and optimization. Examine topics such as instrumentation-based FDO, swap optimization, profile optimization results, and sampling profile quality. Understand the limitations and practical applications of FDO in modern software development.