Experiences from Adjusting Industrial Software for Worst-Case Execution Time Analysis

Worst-case execution time (WCET) analysis is a prevalent way to ensure the timely execution of programs in time-critical systems. With the advent of new technologies such as fog computing and time-sensitive networking (TSN), the interest in timing analysis has increased in industrial communication....

Full description

Saved in:
Bibliographic Details
Published inProceedings / International Symposium on Object-Oriented Real-Time Distributed Computing pp. 62 - 70
Main Authors Denzler, Patrick, Fruhwirth, Thomas, Kirchberger, Andreas, Schoeberl, Martin, Kastner, Wolfgang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2021
Subjects
Annotations
Industrial communication
industrial software
Middleware
OPC UA
Protocols
real-time communication
Real-time systems
Time factors
Timing
transformation rules
worst-case execution time
Online AccessGet full text
ISSN2375-5261
DOI10.1109/ISORC52013.2021.00019

Cover

More Information
Summary:Worst-case execution time (WCET) analysis is a prevalent way to ensure the timely execution of programs in time-critical systems. With the advent of new technologies such as fog computing and time-sensitive networking (TSN), the interest in timing analysis has increased in industrial communication. This paper highlights experiences made while adjusting the publisher of the open62541 OPC UA stack to enable WCET analysis, following a simple process combined with the open-source platform T-CREST. The main challenges are the required knowledge about the code and the specific communication software characteristics like variable message sizes. Other findings indicate the need for other types of annotation for indirect recursion or callback functions. The paper provides the foundation for further research on adjusting the implementation of existing industrial communication protocols for WCET analysis.
ISSN:2375-5261
DOI:10.1109/ISORC52013.2021.00019