Mixed Criticality Systems with Weakly-Hard Constraints

Oliver Gettings; Sophie Quinton; Robert Ian Davis

doi:10.1145/2834848.2834850

Mixed Criticality Systems with Weakly-Hard Constraints

Oliver Gettings, Sophie Quinton, Robert Ian Davis

Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

Original language	English
Title of host publication	RTNS '15
Subtitle of host publication	Proceedings of the 23rd International Conference on Real Time and Networks Systems
Place of Publication	New York
Publisher	ACM
Pages	129-138
ISBN (Print)	978-1-4503-3591-1
DOIs	https://doi.org/10.1145/2834848.2834850
Publication status	Published - Nov 2015
Event	23rd International conference on Real-Time Networks and Systems (RTNS 2015) - , United Kingdom Duration: 4 Nov 2015 → 6 Nov 2015

Conference

Conference	23rd International conference on Real-Time Networks and Systems (RTNS 2015)
Country/Territory	United Kingdom
Period	4/11/15 → 6/11/15

Keywords

mixed criticality systems

Access to Document

10.1145/2834848.2834850

MCC: Mixed Criticality Embedded Systems on Many-Core Platforms
Burns, A. (Principal investigator), Bate, I. J. (Co-investigator), Davis, R. I. (Co-investigator), Soares Indrusiak, L. (Co-investigator) & Harbin, J. R. (Researcher)
EPSRC
1/04/13 → 30/09/16
Project: Research project (funded) › Research

Cite this

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title = "Mixed Criticality Systems with Weakly-Hard Constraints",

abstract = "Current adaptive mixed criticality scheduling policies assumea 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.",

keywords = "mixed criticality systems",

author = "Oliver Gettings and Sophie Quinton and Davis, {Robert Ian}",

year = "2015",

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doi = "10.1145/2834848.2834850",

language = "English",

isbn = "978-1-4503-3591-1",

pages = "129--138",

booktitle = "RTNS '15",

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address = "United States",

note = "23rd International conference on Real-Time Networks and Systems (RTNS 2015) ; Conference date: 04-11-2015 Through 06-11-2015",

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T1 - Mixed Criticality Systems with Weakly-Hard Constraints

AU - Gettings, Oliver

AU - Quinton, Sophie

AU - Davis, Robert Ian

PY - 2015/11

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N2 - Current adaptive mixed criticality scheduling policies assumea 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.

AB - Current adaptive mixed criticality scheduling policies assumea 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.

KW - mixed criticality systems

U2 - 10.1145/2834848.2834850

DO - 10.1145/2834848.2834850

M3 - Conference contribution

SN - 978-1-4503-3591-1

SP - 129

EP - 138

BT - RTNS '15

PB - ACM

CY - New York

T2 - 23rd International conference on Real-Time Networks and Systems (RTNS 2015)

Y2 - 4 November 2015 through 6 November 2015

ER -

Mixed Criticality Systems with Weakly-Hard Constraints

Abstract

Conference

Keywords

Access to Document

Projects

MCC: Mixed Criticality Embedded Systems on Many-Core Platforms

Cite this