Fixed-Priority Scheduling for Two-Phase Mixed-Criticality Systems

Author:

Li Zheng1,He Shuibing2

Affiliation:

1. Western Illinois University, IL, USA

2. Wuhan University, Hubei, China

Abstract

In this article, a two-phase execution model is proposed for mixed-criticality (MC) tasks. Different from traditional MC tasks with a computation phase only, the two-phase execution model requires a memory-access phase first to fetch the instructions and data, and then computation. Theoretical foundations are first established for a schedulability test under given memory-access and computation priority assignment. Based on the established theoretical conclusions, a two-stage priority assignment algorithm, which can find the best priority assignment for both memory-access and computation phases under fixed-priority scheduling, is further developed. Extensive experiments have been conducted and the experimental results validate the effectiveness of our proposed approach.

Funder

University Research Council, Western Illinois University

Publisher

Association for Computing Machinery (ACM)

Subject

Hardware and Architecture,Software

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1. Learning-Based Drop-Aware Mixed-Criticality Task Scheduling;Quality-of-Service Aware Design and Management of Embedded Mixed-Criticality Systems;2023-07-24

2. Preliminaries and Related Work;Quality-of-Service Aware Design and Management of Embedded Mixed-Criticality Systems;2023-07-24

3. Learning-Oriented QoS- and Drop-Aware Task Scheduling for Mixed-Criticality Systems;Computers;2022-06-22

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