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.
Patent No.:
Date of Patent:
Apr. 28, 2015
Filed:
Dec. 20, 2012
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
John Kalamatianos, Arlington, MA (US);
Edward J. McLellan, Holliston, MA (US);
Paul Keltcher, Lexington, MA (US);
Srilatha Manne, Portland, OR (US);
Richard E. Klass, Fort Collins, CO (US);
James M. O'Connor, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
In response to a processor core exiting a low-power state, a cache is set to a minimum size so that fewer than all of the cache's entries are available to store data, thus reducing the cache's power consumption. Over time, the size of the cache can be increased to account for heightened processor activity, thus ensuring that processing efficiency is not significantly impacted by a reduced cache size. In some embodiments, the cache size is increased based on a measured processor performance metric, such as an eviction rate of the cache. In some embodiments, the cache size is increased at regular intervals until a maximum size is reached.