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End-to-end Timing Analysis of Task-Chains
Mälardalen University, School of Innovation, Design and Engineering.
Mälardalen University, School of Innovation, Design and Engineering.
2017 (English)Independent thesis Advanced level (degree of Master (One Year)), 40 credits / 60 HE creditsStudent thesis
Abstract [en]

Many automotive systems are real-time systems, which means that not only correct operationsbut also appropriate timings are their main requirements. Considering the in uence that end-to-end delay might have on the performance of the systems, the calculation of it is of necessity.Abundant techniques have actually been proposed, and some of them have already been applied intopractical systems. In spite of this, some further work still needs to be done. The target of thisthesis is to evaluate and compare two end-to-end timing analysis methods from dierent aspectssuch as data age, consumption time, and then decide which method is a prior choice for end-to-end timing analysis. The experiments can be divided into three blocks, system generation andend-to-end delay calculation by two methods respectively. The experiments focus on two kinds ofperformance parameters, data age and the consumption time that these two methods cost duringtheir execution. By changing the system generating parameters like task number and periods, thechanges of performances of the two methods are analyzed. The performances of the two dierentmethods are also compared when they are applied into the same automotive systems. According tothe results of the experiments, the second method can calculate more accurate data age and consumeless time than the rst method does.

Place, publisher, year, edition, pages
2017. , 34 p.
Keyword [en]
Automotive Systems, End-to-End Delays, Timed Paths, Cause-effect Chain, Data Age
National Category
Embedded Systems
Identifiers
URN: urn:nbn:se:mdh:diva-36751OAI: oai:DiVA.org:mdh-36751DiVA: diva2:1150059
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Available from: 2017-11-02 Created: 2017-10-17 Last updated: 2017-11-02Bibliographically approved

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CiteExportLink to record
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