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:
Aug. 03, 2021
Filed:
Oct. 30, 2019
International Business Machines Corporation, Armonk, NY (US);
Michael K. Gschwind, Chappaqua, NY (US);
Christian Jacobi, Poughkeepsie, NY (US);
Anthony Saporito, Highland, NY (US);
Chung-Lung K. Shum, Wappingers Falls, NY (US);
Timothy J. Slegel, Staatsburg, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Effectiveness of prefetch instructions is determined. A prefetch instruction is executed to request that data be fetched into a cache of the computing environment. The effectiveness of the prefetch instruction is determined. This includes updating, based on executing the prefetch instruction, a cache directory of the cache. The updating includes, in the cache directory, effectiveness data relating to the data. The effectiveness data includes whether the data was installed in the cache based on the prefetch instruction. Additionally, the determining the effectiveness includes obtaining at least a portion of the effectiveness data from the cache directory, and using the at least a portion of effectiveness data to determine the effectiveness of the prefetch instruction.