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. 06, 2020
Filed:
Nov. 21, 2018
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Deanna P. Berger, Hyde Park, NY (US);
Christian Jacobi, West Park, NY (US);
Robert J. Sonnelitter, III, Mount Vernon, NY (US);
Craig R. Walters, Highland, NY (US);
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0891 (2016.01); G06F 12/084 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0891 (2013.01); G06F 12/084 (2013.01); G06F 2212/1032 (2013.01);
Abstract
Speculative data return in parallel with an exclusive invalidate request. A requesting processor requests data from a shared cache. The data is owned by another processor. Based on the request, an invalidate request is sent to the other processor requesting the other processor to release ownership of the data. Concurrent to the invalidate request being sent to the other processor, the data is speculatively provided to the requesting processor.