Performance Modeling of an Apache Web Server with Bursty Arrival Traffic

Performance modeling is an important topic in capacity planning and overload control for web servers. We present a queueing model of an Apache web server that uses bursty arrival traffic. The arrivals of HTTP requests is assumed to be a Markov Modulated Poisson Process and the service discipline of the server is processor sharing. The total number of requests that can be processed at one time is limited to K. We obtain web server performance metrics such as average response time, throughput and blocking probability by simulations. Compared to other models, our model is conceptually simple. The model has been validated through measurements and simulations in our lab. The performance metrics predicted by the model fit well to the experimental outcome. (Less)

[1]  Peter Druschel,et al.  Measuring the Capacity of a Web Server , 1997, USENIX Symposium on Internet Technologies and Systems.

[2]  赵阳,et al.  在Apache Web Server上实现用户认证 , 2002 .

[3]  R. D. van der Mei,et al.  Generalized Processor Sharing Performance Models for Internet Access Lines , 2001 .

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

[5]  Christian Nyberg,et al.  On overload control through queue length for web servers , 2002 .

[6]  Douglas C. Schmidt,et al.  Principles for Developing and Measuring High-performance Web Servers over ATM , 1997 .

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

[8]  Qing Yang,et al.  Measurement, analysis and performance improvement of the Apache Web server , 1999, 1999 IEEE International Performance, Computing and Communications Conference (Cat. No.99CH36305).

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

[10]  S. L. Scott,et al.  The Markov Modulated Poisson Process and Markov Poisson Cascade with Applications to Web Traffic Modeling , 2003 .

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

[12]  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..

[13]  H. Heffes,et al.  A class of data traffic processes — covariance function characterization and related queuing results , 1980, The Bell System Technical Journal.

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

[15]  Niklas Widell,et al.  Performance of distributed information systems , 2002 .