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. 18, 2016
Filed:
Oct. 03, 2014
International Business Machines Corporation, Armonk, NY (US);
Ganesh Balakrishnan, Austin, TX (US);
Srinivasan Ramani, Cary, NC (US);
Brian M Rogers, Durham, NC (US);
Ken V Vu, Cary, NC (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
An apparatus for lock acquisition is disclosed. A method and a computer program product also perform the functions of the apparatus. The apparatus includes a lock history module that adds a current contention state of a lock to a contention history. The lock includes a memory location for storing information used for excluding access to a resource by one or more threads while another thread accesses the resource. The apparatus, in some embodiments, includes a combination module that combines the contention history with a lock address for the lock to form a predictor table index, and a prediction module that uses the predictor table index to determine a lock prediction for the lock. The prediction includes a determination of an amount of contention.