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. 11, 2020
Filed:
Sep. 04, 2018
International Business Machines Corporation, Armonk, NY (US);
Bret R. Olszewski, Austin, TX (US);
Ram Raghavan, Round Rock, TX (US);
Maria Lorena Pesantez, Austin, TX (US);
Gayathri Mohan, Bangalore, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An approach is provided in which a first core broadcasts a cache line request in response to detecting a cache miss corresponding to a first virtual central processing unit (VCPU) executing on the first core. Next, the first core receives a cache line response from the second core responding to the cache line request that includes tag extension data. The first core determines a cache miss type of the cache miss based on the tag extension data and, in turn, sends the cache miss type to a hypervisor that utilizes the cache miss type during a future VCPU dispatch selection.