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:
Nov. 01, 2005
Filed:
Oct. 16, 2002
Applicant:
John T. Robinson, Yorktown Heights, NY (US);
Inventor:
John T. Robinson, Yorktown Heights, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F012/08 ;
U.S. Cl.
CPC ...
Abstract
A method and structure for replacing cache lines in a computer system having a set associative cache memory is disclosed. The method establishes ranking guidelines utilizing a writable cache replacement control array, wherein the guidelines can be dynamically changed by writing data to the cache replacement control array. The invention ranks states of different cache lines according to the ranking guidelines and replaces, upon a cache miss, a cache line having a highest rank of the rankings.