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. 19, 2013
Filed:
Mar. 31, 2010
Mark S. Moir, Windham, NH (US);
Yosef Lev, New York, NY (US);
Daniel S. Nussbaum, Cambridge, MA (US);
Mark S. Moir, Windham, NH (US);
Yosef Lev, New York, NY (US);
Daniel S. Nussbaum, Cambridge, MA (US);
Oracle International Corporation, Redwood City, CA (US);
Abstract
The system and methods described herein may exploit hardware transactional memory to improve the performance of a software or hybrid transactional memory implementation, even when an entire user transaction cannot be executed within a hardware transaction. The user code of an atomic transaction may be executed within a software transaction, which may collect read and write sets and/or other information about the atomic transaction. A single hardware transaction may be used to commit the atomic transaction by validating the transaction's read set and applying the effects of the user code to memory, reducing the overhead associated with commitment of software transactions. Because the hardware transaction code is carefully controlled, it may be less likely to fail to commit. Various remedial actions may be taken before retrying hardware transactions following some failures. If a transaction exceeds the constraints of the hardware, it may be committed by the software transactional memory alone.