Affiliations: Departamento de Electrónica y Computadores,
Universidad de Cantabria, 39005-Santander, Spain. E-mail:
palencij,mgh@unican.es
Note: [] Corresponding author
Abstract: Offset-based response time analysis of tasks scheduled with fixed
priorities has demonstrated to be a powerful tool to analyze many task models
with different kinds of timing constraints, like regular periodic tasks,
suspending tasks, distributed systems, tasks with varying priorities,
multiframe models, etc. Offset-based analysis techniques are capable of
performing a global schedulability analysis in distributed systems, as opposed
to the less efficient techniques that consider each processing or communication
resource as independent. In this paper we extend the offset-based
schedulability analysis techniques to systems with EDF scheduling, using
analytical techniques that are similar to those developed for fixed priority
scheduling. With this new analysis, we now have a complete set of techniques to
perform the analysis of different task models in distributed heterogeneous
systems, i.e., processors and communication networks having either fixed
priority or EDF schedulers.
