Rapidly Adjustable Non-Intrusive Online Monitoring for Multi-core Systems

Normann Decker, Philip Gottschling, Christian Hochberger, Martin Leucker, Torben Scheffel, Malte Schmitz, Alexander Weiss


This paper presents an approach for rapidly adjustable embedded trace online monitoring of multi-core systems, called RETOM. Today, most commercial multi-core SoCs provide accurate runtime information through an embedded trace unit without affecting program execution. Available debugging solutions can use it to reconstruct the run offline, but usually for up to a few seconds only. RETOM employs a novel online reconstruction technique that makes the program run available outside the SoC and allows for evaluating a specification formulated in the stream-based specified language TeSSLa in real time. The necessary computing performance is provided by an FPGA-based event processing system. In contrast to other hardware-based runtime verification techniques, changing the specification requires no circuit synthesis and thus seconds rather than minutes or hours. Therefore, iterated testing and property adjustment during development and debugging becomes feasible while preserving the option of arbitrarily extending observation time, which may be necessary to detect rarely occurring errors. Experiments show the feasibility of the approach.

Original languageEnglish
Title of host publication Formal Methods: Foundations and Applications
Editors J. Fiadeiro, S. Cavalheiro
Number of pages18
Place of PublicationCham
PublisherSpringer Verlag
Publication date11.11.2017
ISBN (Print)978-3-319-70847-8
ISBN (Electronic)978-3-319-70848-5
Publication statusPublished - 11.11.2017
Event20th Brazilian Symposium on Formal Methods - Recife, Brazil
Duration: 29.11.201701.12.2017
Conference number: 205599


Dive into the research topics of 'Rapidly Adjustable Non-Intrusive Online Monitoring for Multi-core Systems'. Together they form a unique fingerprint.

Cite this