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.

Date of Patent:
Dec. 10, 2013

Filed:

Dec. 23, 2008
Applicants:

Robert Cypher, Saratoga, CA (US);

Haakan Zeffer, Santa Clara, CA (US);

Anders Landin, San Carlos, CA (US);

Inventors:

Robert Cypher, Saratoga, CA (US);

Haakan Zeffer, Santa Clara, CA (US);

Anders Landin, San Carlos, CA (US);

Assignee:

Oracle America, Inc., Redwood City, CA (US);

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

The present invention is directed to a system managing data in a multilevel cache memory system. Certain cache data is designated and stored only in particular levels of the multilevel cache, bypassing other levels of the multilevel cache. In a multiprocessor environment, the present invention includes cache coherency operations or messages that pertain to data stored only in certain levels of a multilevel cache.


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