Telecommunication networks: protocols, modeling and analysis
Telecommunication networks: protocols, modeling and analysis
Numerical Computation of Sojourn-Time Distributions in Queuing Networks
Journal of the ACM (JACM)
Probability and statistics with reliability, queuing and computer science applications
Probability and statistics with reliability, queuing and computer science applications
Performance Guarantees for Web Server End-Systems: A Control-Theoretical Approach
IEEE Transactions on Parallel and Distributed Systems
Session-Based Admission Control: A Mechanism for Peak Load Management of Commercial Web Sites
IEEE Transactions on Computers
IEEE Transactions on Software Engineering
PRISM: Probabilistic Symbolic Model Checker
TOOLS '02 Proceedings of the 12th International Conference on Computer Performance Evaluation, Modelling Techniques and Tools
Overload control in QoS-aware web servers
Computer Networks: The International Journal of Computer and Telecommunications Networking - Small and home networks
Adaptive Resource-based Web Server Admission Control
ISCC '02 Proceedings of the Seventh International Symposium on Computers and Communications (ISCC'02)
Detecting Timed-Out Client Requests for Avoiding Livelock and Improving Web Server Performance
ISCC '00 Proceedings of the Fifth IEEE Symposium on Computers and Communications (ISCC 2000)
On queueing with customer impatience until the beginning of service
IPDS '96 Proceedings of the 2nd International Computer Performance and Dependability Symposium (IPDS '96)
On Queuing with Customer Impatience until the End of Service
IPDS '00 Proceedings of the 4th International Computer Performance and Dependability Symposium
A method for transparent admission control and request scheduling in e-commerce web sites
Proceedings of the 13th international conference on World Wide Web
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
Integrating recommendation models for improved web page prediction accuracy
ACSC '08 Proceedings of the thirty-first Australasian conference on Computer science - Volume 74
An integrated model for next page access prediction
International Journal of Knowledge and Web Intelligence
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Increased response time during periods of overload on a Web server may cause impatient users to time-out, causing the server to do unproductive work in processing these abandoned requests. Overhead time spent in preprocessing each request adds to the unproductive work even for requests that are not taken up for service. This causes the usable throughput, i.e. goodput, of the overloaded Web server to drop drastically, while resource utilization remains at 100%. Although this behaviour can be easily reproduced experimentally, existing analytical models of queues with abandonments are not able to do so.We present an analytical model that captures characteristics specific to networked software servers, namely, overhead processing and contention for shared hardware resources, that is able to explain the goodput degradation typically observed in overloaded servers. We use this model to compare the performance of the LIFO and FIFO queueing disciplines during overload and show that LIFO goodput and response time are better than those of FIFO.