Performance modelling of pools in soft real-time design architectures

Architectures for the design of soft real-time systems typically do not facilitate the use of performance tools that will enable a designer to analyse quantitatively the system. Elementary intercommunication data areas, whose behaviours are characterised by interaction protocols, are the building blocks of many soft real-time systems. Pools are one of these blocks. Although the performance of the whole system can be also determined by simulation, in this article we propose new analytical approximations for basic and priority pools. Basic pool modelling is based on semaphore queues whereas priority pool modelling is inspired in classical non-pre-emptive priority queues.