Service selection has been widely investigated as an effective adaptation mechanism that allows a service broker, offering a composite service, to bind each task of the abstract composition to a corresponding implementation, selecting it from a set of candidates. The selection aims typically to fulfill the Quality of Service (QoS) requirements of the composite service, considering several QoS parameters in the decision. We compare the performance of two representative examples of the per-request and per-flow approaches that address the service selection issue at a different granularity level. We present experimental results obtained with a prototype implementation of a service broker. Our results show the ability of the per-flow approach in sustaining an increasing traffic of requests, while the per-request approach appears more suitable to offer a finer customizable service selection in a lightly loaded system.

Cardellini, V., Di Valerio, V., Grassi, V., Iannucci, S., LO PRESTI, F. (2011). A performance comparison of QoS-driven service selection approaches. In Towards a Service-Based Internet: 4th European Conference, ServiceWave 2011 (pp.167-178). Springer [10.1007/978-3-642-24755-2_16].

A performance comparison of QoS-driven service selection approaches

CARDELLINI, VALERIA;GRASSI, VINCENZO;LO PRESTI, FRANCESCO
2011-10-28

Abstract

Service selection has been widely investigated as an effective adaptation mechanism that allows a service broker, offering a composite service, to bind each task of the abstract composition to a corresponding implementation, selecting it from a set of candidates. The selection aims typically to fulfill the Quality of Service (QoS) requirements of the composite service, considering several QoS parameters in the decision. We compare the performance of two representative examples of the per-request and per-flow approaches that address the service selection issue at a different granularity level. We present experimental results obtained with a prototype implementation of a service broker. Our results show the ability of the per-flow approach in sustaining an increasing traffic of requests, while the per-request approach appears more suitable to offer a finer customizable service selection in a lightly loaded system.
Proceedings of 4th European Conference ServiceWave 2011 - 4th European conference on Towards a service-based internet
Rilevanza internazionale
Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni
English
Intervento a convegno
Cardellini, V., Di Valerio, V., Grassi, V., Iannucci, S., LO PRESTI, F. (2011). A performance comparison of QoS-driven service selection approaches. In Towards a Service-Based Internet: 4th European Conference, ServiceWave 2011 (pp.167-178). Springer [10.1007/978-3-642-24755-2_16].
Cardellini, V; Di Valerio, V; Grassi, V; Iannucci, S; LO PRESTI, F
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/69987
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 6
social impact