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Toward Adaptive Con...
Toward Adaptive Control of QoS-Importance Decoupled Real-Time Systems
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- Amirijoo, Mehdi, 1978- (författare)
- Linköpings universitet,Tekniska högskolan,RTSLAB - Laboratoriet för realtidssystem
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- Brännström, Per (författare)
- Institutionen för datavetenskap Linköpings universitet
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- Hansson, Jörgen, 1970- (författare)
- Linköpings universitet,Tekniska högskolan,RTSLAB - Laboratoriet för realtidssystem
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- Gunnarsson, Svante, 1959- (författare)
- Linköpings universitet,Tekniska högskolan,Reglerteknik
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- Son, Sang (författare)
- Department of Computer Science University of Virginia
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(creator_code:org_t)
- 2007
- 2007
- Engelska.
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Ingår i: IEEE International Workshop on Feedback Control Implementation and Design in Computing Systems and Networks,2007.
- Relaterad länk:
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http://www.ida.liu.s...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- This paper deals with differentiated services in real-time systems. Tasks submitted to a real-time system are differentiated with respect to importance and QoS requirements. We use feedback control to enforce the requirements in QoS and ensure a hierarchical admission policy based on the importance of the tasks. The results show that the requirements are met during steady state when the workload is constant. The feedback control approach does not satisfactorily manage QoS when there is a sudden and significant workload change (transient state) due to the time-variant nature of the system. To address this, we present preliminary and promising results using adaptive control, and report on some challenges we are facing when applying the theory.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Nyckelord
- real-time system
- quality of service
- QoS
- control theory
- system identification
- differentiated services
- Computer science
- Datavetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)