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:
Sep. 27, 2011
Filed:
Jan. 30, 2007
David Dice, Foxboro, MA (US);
Nir N. Shavit, Cambridge, MA (US);
Ori Shalev, Givat Shmuel, IL;
Mark Moir, Hampton, NH (US);
David Dice, Foxboro, MA (US);
Nir N. Shavit, Cambridge, MA (US);
Ori Shalev, Givat Shmuel, IL;
Mark Moir, Hampton, NH (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
The present disclosure describes a unique way for each of multiple processes to operate in parallel and use the same shared data without causing corruption to the shared data. For example, during a commit phase, a corresponding transaction can attempt to increment a globally accessible version information variable and store a current value of the globally accessible version information variable for updating version information associated with modified data regardless of whether an associated attempt by the corresponding transaction to modify the globally accessible version information variable was successful. As an alternative mode, a corresponding transaction can merely read and store a current value of the globally accessible version information variable without attempting to update the globally accessible version information variable before such use. In yet another application, a parallel processing environment implements a combination of both aforementioned modes depending on a self-abort rate of the transaction.