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. 31, 2017
Filed:
Jun. 23, 2010
Garrett M. Drapala, Poughkeepsie, NY (US);
Pak-kin Mak, Poughkeepsie, NY (US);
Arthur J. O'neill, Jr., Poughkeepsie, NY (US);
Craig R. Walters, Poughkeepsie, NY (US);
Garrett M. Drapala, Poughkeepsie, NY (US);
Pak-Kin Mak, Poughkeepsie, NY (US);
Arthur J. O'Neill, Jr., Poughkeepsie, NY (US);
Craig R. Walters, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Main memory operation in a symmetric multiprocessing computer, the computer comprising one or more processors operatively coupled through a cache controller to at least one cache of main memory, the main memory shared among the processors, the computer further comprising input/output ('I/O') resources, including receiving, in the cache controller from an issuing resource, a memory instruction for a memory address, the memory instruction requiring writing data to main memory; locking by the cache controller the memory address against further memory operations for the memory address; advising the issuing resource of completion of the memory instruction before the memory instruction completes in main memory; issuing by the cache controller the memory instruction to main memory; and unlocking the memory address only after completion of the memory instruction in main memory.