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TASKers: A Whole-System Generator for Benchmarking Real-Time-System Analyses

Authors Christian Eichler, Tobias Distler, Peter Ulbrich, Peter Wägemann, Wolfgang Schröder-Preikschat

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OASIcs.WCET.2018.6.pdf
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Christian Eichler
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany
Tobias Distler
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany
Peter Ulbrich
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany
Peter Wägemann
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany
Wolfgang Schröder-Preikschat
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany

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Christian Eichler, Tobias Distler, Peter Ulbrich, Peter Wägemann, and Wolfgang Schröder-Preikschat. TASKers: A Whole-System Generator for Benchmarking Real-Time-System Analyses. In 18th International Workshop on Worst-Case Execution Time Analysis (WCET 2018). Open Access Series in Informatics (OASIcs), Volume 63, pp. 6:1-6:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018) https://doi.org/10.4230/OASIcs.WCET.2018.6

Abstract

Implementation-based benchmarking of timing and schedulability analyses requires system code that can be executed on real hardware and has defined properties, for example, known worst-case execution times (WCETs) of tasks. Traditional approaches for creating benchmarks with such characteristics often result in implementations that do not resemble real-world systems, either due to work only being simulated by means of busy waiting, or because tasks have no control-flow dependencies between each other. In this paper, we address this problem with TASKers, a generator that constructs realistic benchmark systems with predefined properties. To achieve this, TASKers composes patterns of real-world programs to generate tasks that produce known outputs and exhibit preconfigured WCETs when being executed with certain inputs. Using this knowledge during the generation process, TASKers is able to specifically introduce inter-task control-flow dependencies by mapping the output of one task to the input of another.

Subject Classification

ACM Subject Classification
  • Computer systems organization → Real-time systems
Keywords
  • benchmarking real-time-system analyses
  • task-set generation
  • whole-system generation
  • static timing analysis
  • WCET analysis

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