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:
Jul. 22, 2008
Filed:
May. 13, 2004
Nikola Grcevski, Toronto, CA;
Kevin Alexander Stoodley, Richmond Hill, CA;
Mark Graham Stoodley, North York, CA;
Vijay Sundaresan, North York, CA;
Nikola Grcevski, Toronto, CA;
Kevin Alexander Stoodley, Richmond Hill, CA;
Mark Graham Stoodley, North York, CA;
Vijay Sundaresan, North York, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An improved method and system for acquisition and release of locks within a software program is disclosed. In an exemplary embodiment, a lock within a loop is transformed by relocating acquisition and release instructions from within the loop to positions outside the loop. This may significantly decrease unnecessarily lock acquisition and release during execution of the software program. In order to avoid contention problems which may arise from acquiring and keeping a lock on an object over a relatively long period of time, a contention test may be inserted into the loop. Such a contention test may temporarily release the lock if another thread in the software program requires access to the locked object.