Energy conservation in a controller using dynamic frequency selection

Patent metadata

Field	Value
Publication number	US-9105249-B2
Application number	US-201113340129-A
Country	US
Kind code	B2
Filing date	Dec 29, 2011
Priority date	Dec 29, 2011
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

Systems and methods of adjusting a frequency of a graphics controller may include a logic to determine a metric associated with an input/output (I/O) queue. The metric may be used to determine whether an I/O limited condition exists. The I/O limited condition may be associated with a graphics controller. There may be a logic to cause a frequency of the graphics controller to be decreased when the I/O limited condition exists, and a logic to cause the frequency of the graphics controller to be increased when the I/O limited condition does not exist. The I/O limited condition may exist when a magnitude of the metric is equal to or greater than a first threshold. The I/O limited condition may not exist when the magnitude of the metric is equal to or less than a second threshold.

First claim

I claim:

1. An apparatus comprising:
a graphics controller;
an input/output (I/O) queue to store graphics I/O requests;
a graphics I/O controller to manage the queue;
logic to determine whether an I/O limited condition exists based on a metric associated with an input/output (I/O) queue, wherein the I/O limited condition is to be associated with the graphics controller, wherein the I/O limited condition exists if a magnitude of the metric is equal to or greater than a first…

Assignees

• Samson Eric C
• Intel Corp

Inventors

• Samson Eric C

Classifications

• G09G5/363 Primary

  Physics · mapped topic

• G09G2360/02

  Physics · mapped topic

• G09G5/18 Primary

  Physics · mapped topic

• G09G2310/08

  Physics · mapped topic

• G09G2360/12

  Physics · mapped topic