Optimizing QoS performance of service requests in grid
Workload of each service class varies dynamically in the grid environment, making the static service pool size allocation scheme unable to guarantee the QoS requirement of each service class. In this paper, we link the issue of dynamical service pool size allocation scheme with QoS requirement under the varying workload, and formulate the QoS performance of service requests in the grid environment by queue theory. Combined Lagrangian optimization with a bisearch approach, the problem of optimally allocating service pool size scheme is resolved. Simulation results show efficiency of the optimal service pool size allocation scheme.
grid, QoS performance, service pool size allocation, queue theory.
张永忠、赵银亮
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Department of Computer Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
grid, QoS performance, service pool size allocation, queue theory.
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