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.:

US 7908439 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 15, 2011

Filed:

Jun. 25, 2007
Applicants:

Jose R. Brunheroto, Mohegan Lake, NY (US);

Valentina Salapura, Chappaqua, NY (US);

Inventors:

Jose R. Brunheroto, Mohegan Lake, NY (US);

Valentina Salapura, Chappaqua, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are a method and apparatus for replacing pre-fetched data in a pre-fetch cache. In one embodiment, each line of the pre-fetch cache will be accessed at most M times. A line accessed M times can be evicted from the cache without any performance loss. In this embodiment, a counter is added to each pre-fetch data line to track how many times it has been accessed. In another embodiment, a displacement bit is added to each pre-fetch data line, and when a defined portion of the data line is accessed, this bit is set to a given value, indicating that the line can be evicted.


Find Patent Forward Citations

Brunheroto, Jose. (2011). Method and apparatus for efficient replacement algorithm for pre-fetcher oriented data cache (U.S. Patent No. 7908439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7908439

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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