Multi-mode device power-saving optimization

摘要

Methods and systems input an energy consumption profile for each of a plurality of different sleep modes available for a device, and input a probability distribution of interjob times for the device. The methods and systems then compute the optimal time-out period for each sleep mode based on the energy consumption profile of each sleep mode and the probability distribution of interjob times. Further, such methods and systems monitor the usage of the device to determine the current interjob time, and switch between sleep modes to relatively lower power sleep modes as the current interjob time becomes larger.

主权项

1. A method comprising:
inputting, into a processor, an energy consumption profile for each of a plurality of different sleep modes available for a device, said device having a number of said sleep modes; inputting, into said processor, a probability distribution of interjob times for a number of different time-outs accepted by said device; automatically computing an optimal time-out period for each said consumption profile of each of said sleep modes using said processor based on said energy consumption profile of each of said sleep modes and said probability distribution of interjob times to limit a number of times an optimization calculation is performed to said number of said sleep modes multiplied by said number of different time-outs accepted by said device; automatically monitoring usage of said device to determine a current interjob time; and automatically switching, under control of said processor, between ones of said sleep modes to relatively lower power sleep modes as said current interjob time becomes larger based said optimal time-out period for each of said sleep modes.