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      • Department of Computer Engineering
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      Analysis of concurrency control protocols for real-time database systems

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      Author(s)
      Ulusoy, Özgür
      Date
      1998
      Source Title
      Information Sciences
      Print ISSN
      0020-0255
      Electronic ISSN
      1872-6291
      Publisher
      Elsevier
      Volume
      111
      Issue
      1-4
      Pages
      19 - 47
      Language
      English
      Type
      Article
      Item Usage Stats
      218
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      Abstract
      This paper provides an approximate analytic solution method for evaluating the performance of concurrency control protocols developed for real-time database systems (RTDBSs). Transactions processed in a RTDBS are associated with timing constraints typically in the form of deadlines. The primary consideration in developing a RTDBS concurrency control protocol is the fact that satisfaction of the timing constraints of transactions is as important as maintaining the consistency of the underlying database. The proposed solution method provides the evaluation of the performance of concurrency control protocols in terms of the satisfaction rate of timing constraints. As a case study, a RTDBS concurrency control protocol, called High Priority, is analyzed using the proposed method. The accuracy of the performance results obtained is ascertained via simulation. The solution method is also used to investigate the real-time performance benefits of the High Priority over the ordinary Two-Phase Locking.
      Keywords
      Analytic solution
      Concurrency control
      Markov modeling
      Performance evaluation
      Real-time database systems
      Computer simulation
      Concurrency control
      Constraint theory
      Markov processes
      Mathematical models
      Network protocols
      Real time systems
      Real time database systems (RTDBS)
      Database systems
      Permalink
      http://hdl.handle.net/11693/25388
      Published Version (Please cite this version)
      https://doi.org/10.1016/S0020-0255(97)10036-6
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      • Department of Computer Engineering 1510
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