Method and system for optimizing core voltage levels and improving frequency performance of individual subcomponents to reduce power consumption in a PCD

摘要

A method and system for optimizing the core voltage level of a portable computing device ("PCD") and improving the frequency performance of individual subcomponents is disclosed. A plurality of voltage values for a plurality of subsystems are determined. At least one subsystem is a multiplexing subsystem. Next, a reduced set of voltage values is calculated based on the plurality of voltage values to determine a voltage level optimized for the shared power domain. The shared power region is then set to an optimized voltage level. When operating multiple processing engines, if the optimized voltage level is determined to exceed the required voltage level of at least one multiplexing subsystem, a subset of the multiple processing engines is identified and The workload of the multiplexing system may be processed at a power consumption level that is more efficient than the overall processing engines.