Automatic Run-Time Selection of Power Policies for Operating Systems

A significant volume of research has concentrated on operating-system directed power management (OSPM). The primary focus of previous research has been the development of OSPM policies. Under different con-ditions, one policy may outperform another and vice versa. In this paper, we explain how to select the best policies at run-time without user or administrator in-tervention. We present a hardware-neutral architecture portable across different platforms running Linux. Our experiments reveal that changing policies at run-time can adapt to workloads more quickly than using any of the policies individually. 1