WinPEPSY-QNS – Performance Evaluation and Prediction System for Queueing Networks

Konferenz: MMB 2006 - 13th GI/ITG Conference Measuring, Modelling and Evaluation of Computer and Communication Systems
27.03.2006 - 29.03.2006 in Nürnberg, Germany

Tagungsband: MMB 2006

Seiten: 4Sprache: EnglischTyp: PDF

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Bazan, Peter; German, Reinhard (Department of Computer Networks and Communication Systems, Friedrich-Alexander University Erlangen-Nürnberg, Germany)
Bolch, Gunter (Department of Distributed Systems and Operating Systems, Friedrich-Alexander University Erlangen-Nürnberg, Germany)

WinPEPSY-QNS is a tool for the easy construction of queueing network models and the evaluation of the performance measures. A graphical and a textual editor can be used for the construction process. The performance measures of the models can be derived by several analysis methods. For product-form networks the mean value analysis (MVA), the method of Jackson, and the method for BCMP networks are implemented. For non-product-form networks the methods of Marie or Chylla can be used. The state space based analysis is provided by a discrete event simulation and solvers for continuous time Markov chains. Some important non-Markovian distributions can be approximated by phase-type distributions. For large Markov chains an efficient solver has been implemented, based on multi-valued decision diagrams and a new approximation method for the stationary analysis.