Modeling server usage for online ticket sales

This article describes the use of a discrete event simulation model to estimate the server power required for the online sale of concert tickets to a required service standard. Data are available on the number of purchases made per hour and the percentage of tickets booked online for previous concerts and we describe how these are used to estimate the number of users in the system. We use bootstrapping to allow us to take account of the variability in this estimate when calculating the confidence intervals for the simulation model outputs. A queuing model is also introduced, which is useful to provide a quick calculation of how busy the server is before running the more computationally-intensive simulation model. A numerical example is used to describe the model and the methodology.

[1]  Maria Kihl,et al.  Performance Modeling of an Apache Web Server with Bursty Arrival Traffic , 2003, International Conference on Internet Computing.

[2]  Ruth Davies,et al.  AutoSimOA: a framework for automated analysis of simulation output , 2011, J. Simulation.

[3]  Khaled M. ELLEITHY,et al.  Using a Queuing Model to Analyze the Performance of Web Servers , 2002 .

[4]  Robert D. van der Mei,et al.  Web Server Performance Modeling , 2001, Telecommun. Syst..

[5]  Jerome A. Rolia,et al.  Web Server Performance Measurement and Modeling Techniques , 1998, Performance evaluation (Print).

[6]  J. S. Hunter,et al.  Statistics for Experimenters: An Introduction to Design, Data Analysis, and Model Building. , 1979 .

[7]  Sandjai Bhulai,et al.  Dynamic thread assignment in web server performance optimization , 2009, Perform. Evaluation.

[8]  Maria Kihl,et al.  Web server performance modeling using an M/G/1/K*PS queue , 2003, 10th International Conference on Telecommunications, 2003. ICT 2003..

[9]  Virgílio A. F. Almeida.  Capacity Planning for Web Services , 2002, Performance.

[10]  Russell C. H. Cheng,et al.  Resampling methods of analysis in simulation studies , 2009, Proceedings of the 2009 Winter Simulation Conference (WSC).

[11]  Lars Michael Kristensen,et al.  Simulation based performance analysis of web servers , 2001, Proceedings 9th International Workshop on Petri Nets and Performance Models.

[12]  Ludmila Cherkasova,et al.  Session-Based Admission Control: A Mechanism for Peak Load Management of Commercial Web Sites , 2002, IEEE Trans. Computers.