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Mixed criticality systems with weakly-hard constraints

Oliver Gettings 1 Sophie Quinton 2 Robert Davis 1, 3 
2 SPADES - Sound Programming of Adaptive Dependable Embedded Systems
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
3 AOSTE - Models and methods of analysis and optimization for systems with real-time and embedding constraints
CRISAM - Inria Sophia Antipolis - Méditerranée , Inria Paris-Rocquencourt, Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
Abstract : Current adaptive mixed criticality scheduling policies assume a high criticality mode in which all low criticality tasks are descheduled to ensure that high criticality tasks can meet timing constraints derived from certification approved methods. In this paper we present a new scheduling policy, Adaptive Mixed Criticality - Weakly Hard, which provides a guaranteed minimum quality of service for low criticality tasks in the event of a criticality mode change. We derive response time based schedulability tests for this model. Empirical evaluations are then used to assess the relative performance against previously published policies and their schedulability tests.
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Submitted on : Friday, January 15, 2016 - 4:48:27 PM
Last modification on : Thursday, August 4, 2022 - 4:52:33 PM

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Oliver Gettings, Sophie Quinton, Robert Davis. Mixed criticality systems with weakly-hard constraints. International Conference on Real Time and Networks Systems, Nov 2015, Lille, France. ⟨10.1145/2834848.2834850⟩. ⟨hal-01257067⟩



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