Intel Corporation

Ping Sager

Shivnandan D Kaushik

Alon Naveh

Jeffrey R Wilcox

Kushagra V Vaid

Lance E Hacking

Bernard Lint

Todd Aldridge Dutton

A mechanism for P-state feedback to operating system (OS) with hardware coordination is described herein. In one embodiment, an example of a process includes, but is not limited to, receiving data from a processor representing an average performance over a previous period of time, and determining a performance state (P-state) for a next period of time based in part on the data representing the average performance over the previous period of time. Other methods and apparatuses are also described.

P-state feedback to operating system with hardware coordination

In one embodiment of the present invention, a method includes determining utilization values for a plurality of processors having power utilization dependencies, and identifying a target frequency for the plurality of processors based on the utilization values.

Determining target operating frequencies for a multiprocessor system

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Portland, OR, United States of America

Ping Sager