CPU Power Saving Methods for Real-time Workloads - Ramesh Thomas, Intel

CPU Power Saving Methods for Real-time Workloads - Ramesh Thomas, Intel Configurations created for real time applications mostly disable power management completely to avoid any impact on latency. It is however, possible to enable power management to a degree to which the impact on latency is tolerable based on application requirements. This presentation addresses how CPU idle states can be enabled and tuned to allow power savings while running real time applications. The presentation will give a background of the issues faced by real-time applications when CPU power management is enabled. It will then explain tools, configurations and methods that can be used to tune applications and CPU power management in the kernel to be able to save power without impacting the deterministic latency tolerance requirements. About Ramesh Thomas Ramesh is a software developer at the Open Source Technology Center at Intel. He works in real-time Linux power management areas. He is a key contributor to the power management subsystem in Zephyr OS. He has also worked in security and virtualization.