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:
Sep. 23, 2014
Filed:
Feb. 27, 2013
International Business Machines Corporation, Armonk, NY (US);
Timothy H. Heil, Sammamish, WA (US);
Robert A. Shearer, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Methods, apparatus, and product for memory management among levels of cache in a memory hierarchy in a computer with a processor operatively coupled through two or more levels of cache to a main random access memory, caches closer to the processor in the hierarchy characterized as higher in the hierarchy, including: identifying a line in a first cache that is preferably retained in the first cache, the first cache backed up by at least one cache lower in the memory hierarchy, the lower cache implementing an LRU-type cache line replacement policy; and updating LRU information for the lower cache to indicate that the line has been recently accessed.