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arXiv · 1808.06434

X-Lap: A Systems Approach for Cross-Layer Profiling and Latency Analysis for Cyber-Physical Networks

Stefan Reif·Andreas Schmidt·Timo Hönig·Thorsten Herfet·Wolfgang Schröder-Preikschat
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Abstract

Networked control applications for cyber-physical networks demand predictable and reliable real-time communication. Applications of this domain have to cooperate with network protocols, the operating system, and the hardware to improve safety properties and increase resource efficiency. In consequence, a cross-layer approach is necessary for the design and holistic optimisation of cyber-physical systems and networks. This paper presents X-Lap, a cross-layer, inter-host timing analysis tool tailored to the needs of real-time communication. We use X-Lap to evaluate the timing behaviour of a reliable real-time communication protocol. Our analysis identifies parts of the protocol which are responsible for unwanted jitter. To system designers, X-Lap provides useful support for the design and evaluation of networked real-time systems.

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Stefan Reif, Andreas Schmidt, Timo Hönig, Thorsten Herfet, Wolfgang Schröder-Preikschat. 2018-08-20. X-Lap: A Systems Approach for Cross-Layer Profiling and Latency Analysis for Cyber-Physical Networks. https://doi.org/10.1145/3267419.3267422

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