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Modeling web server traffic with session-based arrival streams

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Abstract
In this paper, we consider a discrete-time queueing model with infinite waiting room and one single output channel. Users from an infinite user population can start and end sessions during which they are active and send packets to a buffer system. Each active user generates a random but strictly positive number of packets per time slot. The queueing model is applied to study the traffic of a web server, where each session corresponds to one file download. This approach has the advantage of leading to analytical expressions for the main performance measures (buffer occupancy, delay, ...) of the output buffer of the web server. Specifically, in this paper, a closed-form expression for the mean session delay is obtained. We then apply the model to a web server, based on a trace of actual web traffic. Using the model, we can rapidly study the influence of the different system parameters and compare various alternatives.
Keywords
session-based arrivals, discrete-time queueing model, performance evaluation, packet-based networks, web servers, TRAIN ARRIVALS, STATISTICAL MULTIPLEXERS, QUEUING SYSTEM, MESSAGE DELAYS, ACCESS LINES, LENGTH, PERFORMANCE

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Chicago
Hoflack, Laurence, Stijn De Vuyst, Sabine Wittevrongel, and Herwig Bruneel. 2008. “Modeling Web Server Traffic with Session-based Arrival Streams.” In Lecture Notes in Computer Science, 5055:47–60. Berlin, Germany: SPRINGER-VERLAG BERLIN.
APA
Hoflack, Laurence, De Vuyst, S., Wittevrongel, S., & Bruneel, H. (2008). Modeling web server traffic with session-based arrival streams. LECTURE NOTES IN COMPUTER SCIENCE (Vol. 5055, pp. 47–60). Presented at the 15th International Conference on Analytical and Stochastic Modelling Techniques and Applications (ASMTA), Berlin, Germany: SPRINGER-VERLAG BERLIN.
Vancouver
1.
Hoflack L, De Vuyst S, Wittevrongel S, Bruneel H. Modeling web server traffic with session-based arrival streams. LECTURE NOTES IN COMPUTER SCIENCE. Berlin, Germany: SPRINGER-VERLAG BERLIN; 2008. p. 47–60.
MLA
Hoflack, Laurence et al. “Modeling Web Server Traffic with Session-based Arrival Streams.” Lecture Notes in Computer Science. Vol. 5055. Berlin, Germany: SPRINGER-VERLAG BERLIN, 2008. 47–60. Print.
@inproceedings{624857,
  abstract     = {In this paper, we consider a discrete-time queueing model with infinite waiting room and one single output channel. Users from an infinite user population can start and end sessions during which they are active and send packets to a buffer system. Each active user generates a random but strictly positive number of packets per time slot. The queueing model is applied to study the traffic of a web server, where each session corresponds to one file download. This approach has the advantage of leading to analytical expressions for the main performance measures (buffer occupancy, delay, ...) of the output buffer of the web server. Specifically, in this paper, a closed-form expression for the mean session delay is obtained. We then apply the model to a web server, based on a trace of actual web traffic. Using the model, we can rapidly study the influence of the different system parameters and compare various alternatives.},
  author       = {Hoflack, Laurence and De Vuyst, Stijn and Wittevrongel, Sabine and Bruneel, Herwig},
  booktitle    = {LECTURE NOTES IN COMPUTER SCIENCE},
  isbn         = {978-3-540-68980-5},
  issn         = {0302-9743},
  language     = {eng},
  location     = {Nicosia, CYPRUS},
  pages        = {47--60},
  publisher    = {SPRINGER-VERLAG BERLIN},
  title        = {Modeling web server traffic with session-based arrival streams},
  volume       = {5055},
  year         = {2008},
}

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