High-performance LQFDRR Scheduling Algorithm of CICQ
Quan Tang, Zhi-Jiang GAO · Jisuanji gongcheng · 2011
By researching four classical Combined Input and Crosspoint Queued(CICQ) scheduling algorithms,this paper proposes a high-performance scheduling algorithm called LQF_DRR.It uses Longest Queue First(LQF) scheduling strategy at the input ports and Dynamic Round Robin(DRR) strategy at output ports.The cooperation between input and output scheduling makes the long queues have a prior to be serviced,which improves the performance of switch fabric.Simulation result shows that LQF_DRR exhibits good delay performance and stability under any admissible traffic.