共享存储中一种基于流量均衡的队列门限控制算法

提出了使用流量压力均衡作为设置每队列门限的主要依据,让系统的各个端口分担大体相同的流量压力。各个端口的门限控制使得公共存储空间既能够保持在平均意义下的平衡,又能实现突发时段的调剂。模拟结果显示,该算法的效率大大高于传统的动态门限算法。

A Traffic Equilibrium Base Queue Threshold Scheme in Shared Memory Switch

This paper investigates the queue threshold control scheme in shared memory switches.Traditional queue control scheme employs a global threshold,which is derived from current queue length and lacks of the consideration of traffic scenarios.The presented work uses the traffic pressure as a main criterion to establish a per-queue threshold.In this sense,every output port bears the same traffic pressure.The scheme keeps the balance of the common memory in the sense of average,and relieves the demand of buffer space in times of bursty traffic.The result of simulation shows that the proposed scheme outperforms the traditional dynamic threshold in terms of efficiency.