一个基于收益与开销的作业选择策略

A Job Selection Strategy Based on Benefit and Overhead

本文介绍了作者研制的负载平衡系统ＩＬＢＯＴ（ｉｎｔｅｌｉｇｅｎｔｌｏａｄｂａｌａｎｃｅｒｂａｓｅｄｏｎｏｎ－ｌｉｎｅｔｒａｃｉｎｇ）的作业选择策略，该策略考虑了不同的负载环境对不同类型的作业响应时间的影响，并以此为依据来估算作业转移的收益与开销，将一个基于收益与开销的新的选择策略用在负载平衡算法中．性能测试的结果表明，使用该策略能较好地缩短作业的平均响应时间和提高资源的利用率．

In this paper, the authors introduce the job selection strategy in the load balancing system——ILBOT (intelligent load balancer based on on line tracing). In this strategy, the authors consider the influence upon response time of various kind of job caused by the various load environment. According to it, they estimate the benefit and overhead of transferring a job. They use a new selection strategy based on benefit and overhead in load balancing algorithm. The measurement results of the experiment show that it can improve mean response time of jobs and resource utilization of systems substantially.