RMD Plugin: Energy Efficiency using CPU Core P-State control

The power state of a core can be setup between a minimum and the maximum frequency on the cores as defined in the factory. Each core on a CPU can be defined individually to perform at specific frequencies during specific periods of time. The value of this feature is to be able to reconfigure the power state of the cores according to the workload demands by setting the core frequency for a period of time. Maintaining a high core frequency without the need for it by the workload wastes energy and reducing the frequency results in a power and electricity saving for operators of servers. Energy efficiency is the a major driver to make this feature dynamically driven within the node policy definition and the workload functional policy. Customers report that saving 10-20% of energy over a 24 hour period is highly valued.