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:
Aug. 09, 2016
Filed:
Sep. 18, 2012
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Michael M. Magruder, Sammamish, WA (US);
David Detlefs, Issaquah, WA (US);
John J. Duffy, Renton, WA (US);
Goetz Graefe, Bellevue, WA (US);
Vinod K. Grover, Mercer Island, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Various technologies and techniques are disclosed for supporting parallel nested transactions in a transactional memory system. Multiple closed nested transactions are created for a single parent transaction, and the closed nested transactions are executed concurrently as parallel nested transactions. Various techniques are used to ensure effects of the parallel nested transactions are hidden from other transactions outside the parent transaction until the parent transaction commits. For example, retry is allowed to work correctly with parallel nested transactions. When a transaction that is a parallel nested transaction or a child transaction of the parallel nested transaction executes a retry, a read set of the transaction is registered for the retry. When a decision is made to propagate the retry past a parallel nested transaction parent of the transaction, keeping the read set registered and making the read set part of a parent read set.