An efficient weight assignment process for GPS servers

The introduction of quality of service (QoS) in high-speed networks requires the use of more complex policy than the simple FIFO policy commonly used on servers today. Among these policies, generalized processor sharing (GPS) is the paradigm of a large set of policies aimed at sharing the bandwidth among sources in a very efficient way. Moreover, tight end-to-end delay bounds results are provided in the deterministic and statistical frameworks. However, the weight assignment process commonly used, rate proportional processor sharing (RPPS), appears to perform poorly and the resulting admission procedure is cumbersome. To fill this gap, we propose a new weight assignment policy, called effective bandwidth based processor sharing (EBBPS), which captures the QoS requirement of sources. Moreover, the corresponding admission procedure is shown to be scalable, and provides an efficient use of resource capacity