FINITE TWO LAYERED QUEUEING SYSTEMS

Finite Two Layered Queueing Systems

Optimal prices for finite capacity queueing systems

We prove a lower bound on the optimal price for a fairly large class of blocking systems with general arrival and service processes, determine optimal price expressions for M/M/1/m and M/GI/s/s systems, and investigate how optimal prices change with changes in the size of the waiting room and service

Analyzing Markov-Modulated Finite Source Queueing Systems

This paper deals with a First-Come, First-Served (FCFS) queueing model to analyze the steady-state behaviour of heterogeneous finite-source queueing system with a single server. The request sources and the server are supposed to operate in random environments, thus allowing the arrival and service processes to be Markov-modulated ones. Each request of the sources is characterized by its own exp...

Performability Modelling of Distributed Systems using Layered Queueing Networks

Proliferation of large and complex fault-tolerant distributed systems in recent years has stimulated the combined modelling of performance and dependability of such systems. For large systems it may be very expensive to compute valid performance estimates to be used in the combined performability measures. This work considers two different classes of fault-tolerant client-server systems, in whi...

Performance Prediction of Service-Oriented Systems with Layered Queueing Networks

We present a method for the prediction of the performance of a service-oriented architecture during its early stage of development. The system under scrutiny is modelled with the UML and two profiles: UML4SOA for specifying the functional behaviour, and MARTE for the non-functional performance-related characterisation. By means of a case study, we show how such a model can be interpreted as a l...