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Enhancing adaptivity via standard dynamic scheduling middleware

Journal of the Brazilian Computer Society volume 10, pages21–32(2004)Cite this article

Abstract

This paper makes three contributions to research on QoS-enabled middleware for open distributed real-time embedded (DRE) systems. First, it describes the design and implementation of a dynamic scheduling framework based on the OMG Real-Time CORBA 1.2 specification (RTC1.2) that provides capabilities for (1) propagating QoS parameters and a locus of execution across endsystems via a distributable thread abstraction and (2) enforcing the scheduling of multiple distributable threads dynamically using standard CORBA middleware. Second, it examines the results of empirical studies that show how adaptive dynamic scheduling and management of distributable threads can be enforced efficiently in standard middleware for open DRE systems. Third, it presents results from case studies of multiple adaptive middleware QoS management technologies to monitor and control the quality, timeliness, and criticality of key operations adaptively in a representative DRE avionics system.

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Affiliations

  1. Washington University, St. Louis, MO

    Christopher Gill, Louis Mgeta, Yuanfang Zhang & Stephen Torri

  2. OOMWorks, Metuchen, NJ

    Yamuna Krishnamurthy & Irfan Pyarali

  3. Vanderbilt University, Nashville, TN

    Douglas C. Schmidt

Authors
  1. Christopher Gill
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  2. Louis Mgeta
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  3. Yuanfang Zhang
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  4. Stephen Torri
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  5. Yamuna Krishnamurthy
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  6. Irfan Pyarali
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  7. Douglas C. Schmidt
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Gill, C., Mgeta, L., Zhang, Y. et al. Enhancing adaptivity via standard dynamic scheduling middleware. J Braz Comp Soc 10, 21–32 (2004). https://doi.org/10.1007/BF03192351

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Keywords

  • Real-time CORBA
  • adaptive systems
  • dynamic scheduling