In this talk we will cover the new Performance and Diagnostics Hub being introduced in Visual Studio 2013 which can help you build great applications for the Windows Store. We will introduce the UI Responsiveness tool that examines your XAML-based Windows Store apps in Windows 8.1 and presents information about activities like parsing and layout that wouldn’t show up in a traditional CPU Profiler. We will then look at the Energy Consumption tool that estimates approximate energy consumption by key system resources like the CPU, Display, and Networking. Finally we will look at the CPU Sampling tool which can be used to diagnose code performance. We will also include a few tips and tricks around debugging and memory dump analysis for your XAML apps.