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| Titre: | SISO modelling of a web server to be controlled by a feedback control scheme |
| Auteur(s): | Badaoui, A.
Loudini, M.
Hidouci, W.-K. |
| Mots-clés: | Apache
Block box
HTTPRef
Least squares methods
SISO
System identifications
Web servers
Feedback control
Functions
Identification (control systems)
Least squares approximations
Mathematical models
Safety factor
Stability criteria
Transfer functions
User interfaces
Web services
Controllers |
| Date de publication: | 2011 |
| Editeur: | IEEE |
| Référence bibliographique: | 10th International Symposium on Programming and Systems, ISPS' 2011; Algiers; Algeria; 25 April 2011 through 27 April 2011; Code 85722 |
| Collection/Numéro: | Proceedings of the 10th International Symposium on Programming and Systems, ISPS' 2011 2011, Article number 5898884;pp. 191-196 |
| Résumé: | Performance modeling is an important topic in overload control for web servers. Several attempts have been made to create performance models for web servers. The paper describes modeling a Web server to be controlled by Feedback control scheme. Feedback command theory was initially used to control of industrial processes. Its use for the control of performance software is recent. It provides a number of mathematical tools which can be used to analyze the stability of the commanded system and find the best adjustment that responds to the performance criteria. Our approach proceeds in two steps: system identification and controller design. In system identification, we construct mathematical models of the target system in forms of discrete transfer function focused on single-input single-output (SISO) systems. The role of controller is to modify the transfer function of the target system with regard to the control error between the reference value and the output value |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080123456789/1709 |
| ISBN: | 978-145770906-7 |
| Collection(s) : | Communications Internationales
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