System for processor frequency governors to govern a processor frequency by deriving CPU utilization information based on the state of virtual machine monitor

摘要

A method, apparatus and system enable processor frequency governors to comprehend virtualized platforms. Specifically, in one embodiment, the processor frequency governor in a virtual host may be para-virtualized. As a result, the processor frequency governor may run in a partition on the virtualized platform and nonetheless collect and process central processing utility (“CPU”) information on the virtualized platform based on the activity of a plurality of virtual machines on the virtual host.