We have the honor to host Prof. Joël Goossens on Monday, December 13th starting from 10:30. You may join us by visio
Title: “Periodicity of real-time priority driven schedulers with preemption delay on uniprocessor”
Abstract: For embedded and time-critical systems we consider the notion of *simulation interval* for real-time priority driven schedulers upon uniprocessor. Our study focuses on a model where preemption costs are *explicitly* considered, i.e., the time required by the real-time operating system (RTOS) to load the context of execution of *preempted* real-time jobs.
We first present the model and the research question —identify simulation intervals for real-time schedulers (RM, EDF, LLF) with preemption delay upon uniprocessor. We then present briefly related results of the literature. Lastly, we present two contributions: (i) a simulation interval for priority driven schedulers, and then an interesting particular case where former results of the literature, model without preemption delay, apply. I.e., shorter simulation intervals exist.
Bio: Joël Goossens is Professor at the Université Libre de Bruxelles (ULB), Belgium, in the Computer Science Department.
Joël Goossens received his M.Sc. degree in computer science in 1992, his M.Sc. degree in network and management in 1993 and his Ph.D. degree in computer science in 1999, all from the Université Libre de Bruxelles, Belgium.
He teaches operating systems, algorithms and programming, and real-time scheduling. He founded and he is chairing the “Parallel Architectures for Real-Time Systems” research group at ULB. His main research interests are presently in real-time scheduling theory, parallel and multiprocessor scheduling.
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