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:
Feb. 01, 2011
Filed:
Dec. 04, 2007
Marc R. Faucher, South Burlington, VT (US);
Peter A. Sandon, Essex Junction, VT (US);
Arnold S. Tran, South Burlington, VT (US);
Marc R. Faucher, South Burlington, VT (US);
Peter A. Sandon, Essex Junction, VT (US);
Arnold S. Tran, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for implementing prioritized refresh of a multiple way, set associative DRAM based cache includes identifying, for each of a plurality of sets of the cache, the existence of a most recently used way that has not been accessed during a current assessment period; and for each set, refreshing only the identified most recently used way of the set not accessed during the current assessment period, while ignoring the remaining ways of the set; wherein a complete examination of each set for most recently used ways therein during the current assessment period constitutes a sweep of the cache.