The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 26, 2017

Filed:

Jan. 02, 2014
Applicant:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Inventors:

Manish Arora, Dublin, CA (US);

Indrani Paul, Round Rock, TX (US);

Yasuko Eckert, Kirkland, WA (US);

Nuwan S. Jayasena, Sunnyvale, CA (US);

Srilatha Manne, Portland, OR (US);

Madhu Saravana Sibi Govindan, Austin, TX (US);

William L. Bircher, Austin, TX (US);

Assignee:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3287 (2013.01); G06F 1/3225 (2013.01); Y02B 60/1282 (2013.01); Y02B 60/32 (2013.01);
Abstract

Power gating decisions can be made based on measures of cache dirtiness. Analyzer logic can selectively power gate a component of a processor system based on a cache dirtiness of one or more caches associated with the component. The analyzer logic may power gate the component when the cache dirtiness exceeds a threshold and may maintains the component in an idle state when the cache dirtiness does not exceed the threshold. Idle time prediction logic may be used to predict a duration of an idle time of the component. The analyzer logic may then selectively power gates the component based on the cache dirtiness and the predicted idle time.


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