Online and offline scheduling with cache-related preemption delays

Guillaume Phavorin; Pascal Richard; Joël Goossens; Claire Maiza; Laurent George; Thomas Chapeaux

Online and offline scheduling with cache-related preemption delays

Guillaume Phavorin ¹ Pascal Richard ¹ Joël Goossens ² Claire Maiza ³ Laurent George ⁴ Thomas Chapeaux ²

1 LIAS - Laboratoire d'Informatique et d'Automatique pour les Systèmes

2 ULB - Département d'Informatique [Bruxelles]

3 VERIMAG - IMAG - VERIMAG

4 LIGM - Laboratoire d'Informatique Gaspard-Monge

Abstract : In this paper, we consider the problem of scheduling hard real-time tasks subjected to preemption delays on a uniprocessor system. While most of the existing work focus on either reducing these additional delays or improving the system predictability by bounding them, we focus in this work on the problem of taking scheduling decisions while considering preemption delays. We first study the behavior of existing online scheduling policies such as rm and edf when accounting for preemption delays. Then we prove that there exists no optimal online algorithm for the problem of scheduling sporadic tasks with preemption delays. Eventually, we propose an optimal offline solution to the problem of scheduling tasks subjected to preemption delays using mathematical programming.

Keywords : Offline scheduling Online scheduling rm edf Preemption delays CRPD Sustainability Mathematical programming

Document type :

Journal articles

Domain :

Computer Science [cs] / Embedded Systems

Complete list of metadatas

https://hal-upec-upem.archives-ouvertes.fr/hal-01779467
Contributor : Admin Upem <>
Submitted on : Thursday, April 26, 2018 - 3:53:26 PM
Last modification on : Wednesday, September 5, 2018 - 1:30:09 PM

Online and offline scheduling with cache-related preemption delays

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Online and offline scheduling with cache-related preemption delays

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