User level control of power management policies

US9170624B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Krishnakanth V. Sistla · Beaverton, US
• Jeremy J. Shrall · Portland, US
• Stephen H. Gunther · Beaverton, US
• Efraim Rotem · Haifa, IL
• Alon Naveh · Ramat HaSharon, IL
• Eliezer Weissmann · Haifa, IL
• Anil Aggarwal · Portland, US
• Martin T. Rowland · Beaverton, US
• Ankush Varma · Portland, US
• Ian M. Steiner · Hillsboro, US
• Matthew Bace · Arlington, US
• Avinash N. Ananthakrishnan · Portland, US
• Jason W. Brandt · Austin, US

Key dates

• Filing date: Mar 1, 2013
• Grant date: Oct 27, 2015
• Expiry date: Nov 13, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F1/3234
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

In one embodiment, the present invention includes a processor having a core and a power controller to control power management features of the processor. The power controller can receive an energy performance bias (EPB) value from the core and access a power-performance tuning table based on the value. Using information from the table, at least one setting of a power management feature can be updated. Other embodiments are described and claimed.