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:
Jan. 10, 2017
Filed:
Sep. 22, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Kevin J. Ash, Tucson, AZ (US);
Lokesh M. Gupta, Tucson, AZ (US);
Kenneth W. Todd, Tuscon, AZ (US);
Boyan Zhao, Tucson, AZ (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0895 (2013.01); G06F 12/0868 (2013.01);
Abstract
Mechanisms for concurrent update of data in cache with destage of data from the cache to disk by a processor device. A second copy of the data is established in the cache and on a cache directory. A first copy of the data and the second copy of the data are adjacently ordered in the cache directory. One of the first and second copies is held for an update operation so as to include a latest data modification, while the remaining copy concurrently is used for a destage operation to disk.