The quality of tools support has a direct impact on the effectiveness of your optimization efforts. Performance tools that target single processor core performance provide insight into the application and how the application is behaving at the level of the microarchitecture. Multi-core performance tools provide insight into how the application is executing in the context of Intel Hyper-Threading Technology and multi-core processing. Finally, performance tools focused on power optimization provide insight into application behavior that impacts power utilization. Understanding the capabilities of tools and how to use them is critical to your Intel Atom processor migration. This white paper covers the performance optimization process for systems based on the Intel Atom processor.