Load balancing based QoS-aware request scheduling arithmetic in web cluster
Zhang Xi-huang · Jisuanji gongcheng yu sheji · 2007
Cluster technology has already become an effective way to improve network QoS (quality of service). Task scheduling and resource scheduling are two aspects concerned with cluster system,while most of the arithmetic only considers one of them. To resolve this problem,a load balancing based QoS-aware request scheduling arithmetic is proposed. An admission probability Pa which is a func-tion with two independent variables service class and load is introduced. With the increase of load,Pa varies none increasingly. For queens with different requirements,the Pa's varying speed is different so as to dynamically arrange bandwidth for every service class in the different load situations. Finally imitate experiment is conducted to testify it's rationality.