During a benchmark, various performance measures can be obtained and observed on-line through the monitoring tool of WAGON. Of particular interest are request latency and user perceived throughput.
- server features: server name or IP address, home page address of the server, server log files (used to compute routing probabilities), etc.
- client features: laws and parameters of the random variables in the traffic model; transport protocols (HTTP/1.0 or HTTP/1.1) and parameters used (pipelining in 1.1, number of parallel TCP connections per client).
- experiment configuration: local client caching, sampling rate, client machines and bandwidth constraint and propagation delay on these machines, etc.
The development of WAGON was led by Zhen Liu. Z. Liu left INRIA in August 2000 to join IBM T. J.Watson Research Center in Yorktown Heights, NY. Inquiries can be sent to e-mail.
The following people were involved in the development of WAGON:
Additional readings can be found in
- Traffic Model and Performance Evaluation of Web Servers Z. Liu, N. Niclausse, C. Jalpa-Villanueva, S. Barbier, INRIA, RR-3840, December 1999
- Modelisation, analyse de performance et dimensionnement du World Wide Web., N. Niclausse, PhD thesis, University of Nice - Sophia Antipolis, June 1999 (in French)
- Some slides on WAGON
- Web traffic modeling and performance comparison between HTTP1.0 and HTTP1.1, In System Performance Evaluation: Methodologies and Applications, CRC Press, Gelenbe, E. (ed.), August 1999
- Modélisation et Optimisation du Web, C. Jalpa-Villanueva, PhD thesis, University of Nice - Sophia Antipolis, December 2000 (in French).