基于效益函数与优先级的网格服务质量保证

Grid QoS Guarantee Based on Benefit Functions and Priorities

将资源预约请求作为网格调度对象是提高网格整体服务质量的有效手段。针对传统预约方式成功率低的问题,提出将效益函数与优先级引入资源预约,采用可连续预约的方法,在减少预约双方交互负担的同时,有效提高资源预约成功率。通过模拟与比较,表明该算法在应对大量预约请求时均有较好的性能。

Scheduling of grid resource reservations is an effective way to improve the grid Quality of Service（QoS） as a whole. This paper introduces the benefit functions and priorities into resource reservations, which keeps the reservation processes from continuous interactions and improves the reservation success rate. Simulations are performed to compare the algorithm with an existing approach. The result indicates that the proposed algorithm has better performance by satisfying large number of reservation requests.