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:
Mar. 25, 2014
Filed:
Oct. 21, 2010
Applicants:
Tarik Ono, Cupertino, CA (US);
Mark R. Greenstreet, Vancouver, CA;
Inventors:
Tarik Ono, Cupertino, CA (US);
Mark R. Greenstreet, Vancouver, CA;
Assignee:
Oracle International Corporation, Redwood Shores, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosed embodiments provide a system that uses speculative cache requests to reduce cache miss delays for a cache in a multi-level memory hierarchy. During operation, the system receives a memory reference which is directed to a cache line in the cache. Next, while determining whether the cache line is available in the cache, the system determines whether the memory reference is likely to miss in the cache, and if so, simultaneously sends a speculative request for the cache line to a lower level of the multi-level memory hierarchy.