Energy-aware task scheduling with task synchronization for embedded real-time systems

Energy-aware task scheduling with task synchronization for embedded real-time systems

Slowdown factors determine the extent of slowdown that a computing system can experience based on functional and performance requirements. Dynamic voltage scaling (DVS) of a processor based on slowdown factors can lead to considerable energy savings. This paper addresses the problem of DVS in the pr...

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Veröffentlicht in:IEEE transactions on computer-aided design of integrated circuits and systems 2006-06, Vol.25 (6), p.1024-1037
Hauptverfasser: Jejurikar, R., Gupta, R.
Format: Artikel
Sprache:eng
Schlagworte:
Computation
Computer science
Dynamic scheduling
Dynamical systems
Dynamics
Energy consumption
Energy management
Frequency inheritance
Frequency synchronization
low power
Optimal scheduling
Power system management
Priority scheduling
Processor scheduling
Real time systems
Scheduling
Synchronism
Synchronization
task synchronization
Tasks
Voltage control
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Beschreibung
Zusammenfassung:Slowdown factors determine the extent of slowdown that a computing system can experience based on functional and performance requirements. Dynamic voltage scaling (DVS) of a processor based on slowdown factors can lead to considerable energy savings. This paper addresses the problem of DVS in the presence of task synchronization. Tasks synchronize to enforce mutually exclusive access to the shared resources and can be blocked by lower priority tasks. Task slowdown factors that guarantee meeting all task deadlines are computed. Both static and dynamic priority scheduling viz. rate monotonic (RM) scheduling and earliest deadline first (EDF) scheduling, respectively, are studied
ISSN:0278-0070
1937-4151
DOI:10.1109/TCAD.2005.855964