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. 06, 2013
Filed:
Jul. 22, 2008
Claus Stellwag, Markt Erlbach, DE;
Claus Stellwag, Markt Erlbach, DE;
Elektrobit Automotive GmbH, Erlangen, DE;
Abstract
The invention relates to a spinlock-based multi-core synchronization technique in a real-time environment, wherein multiple processor cores perform spinning attempts to request a lock and the lock is allocated to at most one of the multiple cores for a mutually exclusive operation thereof. A method embodiment of the technique comprises the steps of allocating the lock to the first core requesting it; establishing for each core an indication of a waiting time for receiving the lock; selecting at least one of the spinning cores based on the waiting time indications; and, upon return of the lock, conditionally allocating the lock to the selected core, if the selected core performs a spinning attempt within a predefined time window starting with the return of the lock.