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:
Dec. 06, 2005
Filed:
Aug. 31, 2001
Lawrence Jacobs, Redwood City, CA (US);
Xiang Liu, San Mateo, CA (US);
Marcin Porwit, San Francisco, CA (US);
James Feenan, Windham, NH (US);
William Wright, Bedford, NH (US);
Lawrence Jacobs, Redwood City, CA (US);
Xiang Liu, San Mateo, CA (US);
Marcin Porwit, San Francisco, CA (US);
James Feenan, Windham, NH (US);
William Wright, Bedford, NH (US);
Oracle Corporation, Redwood Shores, CA (US);
Abstract
A self-adaptive hybrid cache and method of caching data objects. A set of cacheable data objects is partitioned among a set of cooperating caches (e.g., a cache cluster). A hybrid cache is configured to cache data objects that it owns (i.e., objects in its partition) as primary content and to also cache data objects that are owned by other caches as secondary content (e.g., based on demand for such objects). A hybrid cache stores and/or removes objects based on criteria such as validity, popularity, size, age, cost of replacing, amount of available cache space, whether the objects are primary or secondary, etc. Over time, the amount or ratio of primary and secondary data that a hybrid cache stores may fluctuate dynamically.