  Queueing networks and Markov chains are widely used for conducting
performance and reliability studies. In this paper we describe the queueing
package, a free software package for queueing networks and Markov chain
analysis for GNU Octave. The queueing package provides implementations of
numerical algorithms for computing transient and steady-state performance
measures of discrete and continuous Markov chains, and for steady-state
analysis of single-station queueing systems and queueing networks. We
illustrate the design principles of the queueing package, describe its most
salient features and provide some usage examples.
