Functional performance specification with stochastic probes

  • Authors:
  • Ashok Argent-Katwala;Jeremy T. Bradley

  • Affiliations:
  • Department of Computing, Imperial College London, London, United Kingdom;Department of Computing, Imperial College London, London, United Kingdom

  • Venue:
  • EPEW'06 Proceedings of the Third European conference on Formal Methods and Stochastic Models for Performance Evaluation
  • Year:
  • 2006

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Abstract

In this paper, we introduce FPS, a mechanism to define performance measures for stochastic process algebra models. FPS is a functional performance specification language which describes passage-time, transient, steady-state and continuous state space performance questions. We present a generalisation of stochastic probes, a formalism-independent specification of behaviour in stochastic process algebra models. Stochastic probes select the performance-critical paths for which the measures are required; increasing their expressiveness in turn gives us greater expressive power to represent performance questions. We end by demonstrating these tools on an RSS syndication architecture of up to 1.5×1051 states