An Adaptive Framework for Multiprocessor Real-Time System

  • Authors:
  • Aaron Block;Björn Brandenburg;James H. Anderson;Stephen Quint

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ECRTS '08 Proceedings of the 2008 Euromicro Conference on Real-Time Systems
  • Year:
  • 2008

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Abstract

In this paper, we develop an adaptive scheduling framework for changing theprocessor shares of tasks---a process called reweighting---on real-timemultiprocessor platforms. Our particular focus is adaptive frameworks that aredeployed in environments in which tasks may frequently require significant sharechanges. Prior work on enabling real-time adaptivity on multiprocessors hasfocused exclusively on scheduling algorithms that can enact needed adaptations. The algorithm proposed in this paper uses both feedback and optimizationtechniques to determine at runtime which adaptations are needed.