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:
Oct. 28, 2014
Filed:
Jul. 30, 2007
Lee Charles LA Frese, Tucson, AZ (US);
Joshua Douglas Martin, Tucson, AZ (US);
Justin Thomson Miller, Tucson, AZ (US);
Vernon Walter Miller, Tucson, AZ (US);
James Russell Thompson, Tucson, AZ (US);
Yan Xu, Tucson, AZ (US);
Olga Yiparaki, Tucson, AZ (US);
Lee Charles La Frese, Tucson, AZ (US);
Joshua Douglas Martin, Tucson, AZ (US);
Justin Thomson Miller, Tucson, AZ (US);
Vernon Walter Miller, Tucson, AZ (US);
James Russell Thompson, Tucson, AZ (US);
Yan Xu, Tucson, AZ (US);
Olga Yiparaki, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism for selectively disabling and enabling read caching based on past performance of the cache and current read/write requests. The system improves overall performance by using an autonomic algorithm to disable read caching for regions of backend disk storage (i.e., the backstore) that have had historically low cache hit ratios. The result is that more cache becomes available for workloads with larger hit ratios, and less time and machine cycles are spent searching the cache for data that is unlikely to be there.