3 Search Results for "Halang, Wolfgang A."

Document
DOI: 10.4230/LITES-v004-i002-a002
EMSBench: Benchmark and Testbed for Reactive Real-Time Systems

Authors: Florian Kluge, Christine Rochange, and Theo Ungerer

Published in: LITES, Volume 4, Issue 2 (2017). Leibniz Transactions on Embedded Systems, Volume 4, Issue 2

Abstract
Benchmark suites for real-time embedded systems (RTES) usually contain only pure computations that are often used in this domain. They allow to evaluate computing performance, but do not reproduce the complexity and behaviour that is typical for such systems. Actual RTES have to interact with the physical environment, which is often reflected by code that is executed concurrently. In this article, we present the software package EMSBench that mimics such complex behaviour, and highlight some of its use cases. The benchmark code ems of EMSBench is based on the open-source engine management system (EMS) FreeEMS. Additionally, EMSBench contains a trace generator (tg) that provides input signals for ems and enables to execute ems close to reality. We provide detailed descriptions of the ems's execution behaviour and of trace generation. EMSBench can be used as test or benchmark program to compare different hardware platforms, e.g. in terms of schedulability. Also, we use EMSBench as a benchmark for static worst-case execution time (WCET) analysis and compare these results to measurements performed on existing hardware. Our results based on the OTAWA WCET estimation tool show WCET overestimations by the static analysis from 11.9% to 41.1% depending on the complexity of the analysed functions.
Cite as

Florian Kluge, Christine Rochange, and Theo Ungerer. EMSBench: Benchmark and Testbed for Reactive Real-Time Systems. In LITES, Volume 4, Issue 2 (2017). Leibniz Transactions on Embedded Systems, Volume 4, Issue 2, pp. 02:1-02:23, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{kluge_et_al:LITES-v004-i002-a002,
  author =	{Kluge, Florian and Rochange, Christine and Ungerer, Theo},
  title =	{{EMSBench: Benchmark and Testbed for Reactive Real-Time Systems}},
  journal =	{Leibniz Transactions on Embedded Systems},
  pages =	{02:1--02:23},
  ISSN =	{2199-2002},
  year =	{2017},
  volume =	{4},
  number =	{2},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LITES-v004-i002-a002},
  URN =		{urn:nbn:de:0030-drops-192698},
  doi =		{10.4230/LITES-v004-i002-a002},
  annote =	{Keywords: Real-time benchmark, WCET Analysis, Engine Management System}
}
Document
DOI: 10.4230/LITES-v003-i001-a001
Programming Language Constructs Supporting Fault Tolerance

Authors: Christina Houben and Sebastian Houben

Published in: LITES, Volume 3, Issue 1 (2016). Leibniz Transactions on Embedded Systems, Volume 3, Issue 1

Abstract
In order to render software viable for highly safety-critical applications, we describe how to incorporate fault tolerance mechanisms into the real-time programming language PEARL. Therefore, we present, classify, evaluate and illustrate known fault tolerance methods for software. We link them together with the requirements of the international standard IEC 61508-3 for functional safety. We contribute PEARL-2020 programming language constructs for fault tolerance methods that need to be implemented by operating systems, and code-snippets as well as libraries for those independent from runtime systems.
Cite as

Christina Houben and Sebastian Houben. Programming Language Constructs Supporting Fault Tolerance. In LITES, Volume 3, Issue 1 (2016). Leibniz Transactions on Embedded Systems, Volume 3, Issue 1, pp. 01:1-01:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@Article{houben_et_al:LITES-v003-i001-a001,
  author =	{Houben, Christina and Houben, Sebastian},
  title =	{{Programming Language Constructs Supporting Fault Tolerance}},
  journal =	{Leibniz Transactions on Embedded Systems},
  pages =	{01:1--01:20},
  ISSN =	{2199-2002},
  year =	{2016},
  volume =	{3},
  number =	{1},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LITES-v003-i001-a001},
  URN =		{urn:nbn:de:0030-drops-192560},
  doi =		{10.4230/LITES-v003-i001-a001},
  annote =	{Keywords: Fault tolerance, Functional safety, PEARL, Embedded systems, Software engineering}
}
Document
DOI: 10.4230/DagSemRep.107
High Integrity Programmable Electronic Systems (Dagstuhl Seminar 9509)

Authors: William John Cullyer, Wolfgang A. Halang, and Bernd J. Krämer

Published in: Dagstuhl Seminar Reports. Dagstuhl Seminar Reports, Volume 1 (2021)

Abstract
Cite as

William John Cullyer, Wolfgang A. Halang, and Bernd J. Krämer. High Integrity Programmable Electronic Systems (Dagstuhl Seminar 9509). Dagstuhl Seminar Report 107, pp. 1-39, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (1995)

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@TechReport{cullyer_et_al:DagSemRep.107,
  author =	{Cullyer, William John and Halang, Wolfgang A. and Kr\"{a}mer, Bernd J.},
  title =	{{High Integrity Programmable Electronic Systems (Dagstuhl Seminar 9509)}},
  pages =	{1--39},
  ISSN =	{1619-0203},
  year =	{1995},
  type = 	{Dagstuhl Seminar Report},
  number =	{107},
  institution =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemRep.107},
  URN =		{urn:nbn:de:0030-drops-149955},
  doi =		{10.4230/DagSemRep.107},
}
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