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A modified synchronization model for dead-lock free concurrent execution of strongly interacting task sets in embedded systems

  • Global scheduling algorithms are very promising for application in embedded real-time systems using multi-core controllers. In this paper we want to make a first step forward to apply such scheduling methods on real existing systems. Especially a new resource model is necessary to avoid deadlocks, as this goal can not be achieved by using the standard OSEK Priority Ceiling Protocol when shared global resources are in use. We also introduce the new metric mean Normalized Blocking Time in order to be able to compare locking mechanisms according to the timing effects of their blocking behavior. Finally we give a simulative application example of the new metric by the use of two different kinds of semaphore models and an example task set typical for existing embedded real-time systems in the automotive powertrain environment.

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Metadaten
Author:Martin Alfranseder, Matthias Mucha, Stefan Schmidhuber, Andreas Sailer, Michael NiemetzORCiDGND, Jürgen MottokORCiDGND
Parent Title (English):2013 International Conference on Applied Electronics (AE 2013), IEEE, 10-12 September 2013, Pilsen, Czech Republic
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2013
Release Date:2021/03/01
Volume:18
First Page:13
Last Page:18
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Datenkommunikation
Fakultät Elektro- und Informationstechnik / Laboratory for Safe and Secure Systems (LAS3)
research focus:Digitalisierung