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:
Mar. 24, 2026
Filed:
Sep. 23, 2022
International Business Machines Corporation, Armonk, NY (US);
Michael Joseph Cadigan, Jr., Poughkeepsie, NY (US);
Gregory William Alexander, Pflugerville, TX (US);
Deanna Postles Dunn Berger, Hyde Park, NY (US);
Timothy Bronson, Round Rock, TX (US);
Chung-Lung K. Shum, Wappingers Falls, NY (US);
Aaron Tsai, Hyde Park, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments are for processor cross-core cache line contention management. A computer-implemented method includes sending a cross-invalidate command to one or more caches based on receiving a cache state change request for a cache line in a symmetric multiprocessing system and determining a retry delay based on receiving a cross-invalidate reject response from at least one of the one or more caches. The computer-implemented method also includes waiting until a retry delay period associated with the retry delay has elapsed to resend the cross-invalidate command to the one or more caches and granting the cache state change request for the cache line based on receiving a cross-invalidate accept response from the one or more caches.