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. 23, 2004
Filed:
May. 16, 2001
Applicant:
Inventors:
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/200 ;
U.S. Cl.
CPC ...
G06F 1/200 ;
Abstract
Various methods and systems for implementing a sectored least recently used (LRU) cache replacement algorithm are disclosed. Each set in an N-way set-associative cache is partitioned into several sectors that each include two or more of the N ways. Usage status indicators such as pointers show the relative usage status of the sectors in an associated set. For example, an LRU pointer may point to the LRU sector, an MRU pointer may point to the MRU sector, and so on. When a replacement is performed, a way within the LRU sector identified by the LRU pointer is filled.