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Evaluation of thread-based virtual duplex systems in embedded environments

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dc.contributor.authorKeller, Jörg
dc.contributor.authorGrävinghoff, Andreas
dc.contributor.editorGrimm, Rüdiger
dc.contributor.editorKeller, Hubert B.
dc.contributor.editorRannenberg, Kai
dc.date.accessioned2019-10-30T13:27:32Z
dc.date.available2019-10-30T13:27:32Z
dc.date.issued2003
dc.description.abstractVirtual duplex systems have emerged as an alternative to traditional duplex systems, trading structural for temporal redundancy. When used in dependable embedded systems, virtual duplex systems provide a cost benefit because they require only one instead of two processors. In order to lighten the burden of this single processor, and in order to obey real-time requirements in embedded systems, the overhead due to the temporal redundancy must be low. As context-switch time constitutes a significant fraction of this overhead, we propose to use threads instead of processes to reduce the overhead in the error-free case and allow for faster detection of faults. Instead of using POSIX threads, we propose emulated multithreading to further reduce overhead. This technique allows very fine-grain execution and very short times between checkpoints. We evaluate the proposed concepts quantitatively.en
dc.identifier.isbn3-88579-330-X
dc.identifier.pissn1617-5468
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/29567
dc.language.isoen
dc.publisherGesellschaft für Informatik e.V.
dc.relation.ispartofINFORMATIK 2003 - Mit Sicherheit Informatik, Schwerpunkt "Sicherheit - Schutz und Zuverlässigkeit"
dc.relation.ispartofseriesLecture Notes in Informatics (LNI) - Proceedings, Volume P-36
dc.titleEvaluation of thread-based virtual duplex systems in embedded environmentsen
dc.typeText/Conference Paper
gi.citation.endPage162
gi.citation.publisherPlaceBonn
gi.citation.startPage151
gi.conference.date29. September - 2. Oktober 2003
gi.conference.locationFrankfurt am Main
gi.conference.sessiontitleRegular Research Papers

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