Performance Modeling of a Class of Single-tier Client/Server Architectures

Cesare Antonelli, Giuseppe Iazeolla Laboratory for Computer Science Electronic Engineering Department University of Roma Torvergata Via della Ricerca Scientifica 00133 ROMA ITALY


The Client/Server processing approach is a form of distributed processing, and Client/Server systems constitute a fundamental shift in the systems architecture of the 90s. Client/Server performance modeling presents several difficulties due to the distribution of the applications, to the process migration, and to the synchronization among activities.

These features usually make the analytical solutions difficult to obtain, while the numerical one becomes quickly unfeasible because of the exponential growth of the state space.

The aim of this work is to present a model for a class of client/server systems not dealt with by existing literature and a solution technique based on aggregation/disaggregation leading to a more affordable state space, thus making the model very useful in parametric studies.


Cesare Antonelli received the Laurea degree in Computer Science from the University of Pisa, Pisa, Italy. He is currently a Ph.D. candidate at the University of Roma Torvergata, Roma, Italy and a system analyst at the Italian Ministry of Health, Roma, Italy.

Mr. Antonelli held industrial positions in software design and development and visiting research appointments at the Concurrent Engineering Research Center of the West Virginia University, WV, USA.

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