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Multi-core Composability in the Face of Memory Bus Contention
Mälardalen University, School of Innovation, Design and Engineering. (IS)ORCID iD: 0000-0002-1687-930X
Mälardalen University, School of Innovation, Design and Engineering. (IS (Model-Based Engineering of Embedded Systems) (MBEES))ORCID iD: 0000-0001-7448-3381
Mälardalen University, School of Innovation, Design and Engineering. (IS)ORCID iD: 0000-0001-6132-7945
Mälardalen University, School of Innovation, Design and Engineering. (IS)ORCID iD: 0000-0001-7586-0409
2012 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we describe the problem of achieving composability of independently developed real-time subsystems to be executed on a multicore platform.We evaluate existing work for achieving real-time performance on multicores and illustrate their lack with respect to composability. To better address composability we present a multi-resource server-based scheduling technique to provide predictable performance when composing multiple subsystems on a multicore platform. To achieve composability also on multicore platforms, we propose to add memory-bandwidth as an additional server resource. Tasks within our multi-resource servers are guaranteed both CPU- and memory-bandwidth; thus the performance of a server will become independent of resource usage by tasks in other servers. We are currently implementing multi-resource servers for the Enea’s OSE operating system for a P4080 8-core processor to be tested with software for a 3G-basestation.

Place, publisher, year, edition, pages
2012.
Keyword [en]
memory-bus contention, hierarchical scheduling, multicore
National Category
Computer Science Embedded Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:mdh:diva-16472OAI: oai:DiVA.org:mdh-16472DiVA: diva2:575117
Conference
5th International Workshop on Compositional Theory and Technology for Real-Time Embedded Systems (CRTS'12), ACM, San Juan, Puerto Rico
Projects
PPMSched
Available from: 2012-12-07 Created: 2012-12-07 Last updated: 2013-12-03Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
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  • en-US
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Output format
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