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计算机科学 2010
Predictive Control and Proportional Delay Guarantee in Web QoS
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Abstract:
Control theory is being used for QoS in Web server,but when workload varies significantly,the real-time performance of the feedback control needs to be improved.After analysing the heavy-tailed property of the number and size of embedded URL in the required pages,based on the queuing feature of the Web server and the HTTP 1.1 persistent connection,a predictive approach was desired to achieve the relative delay guarantee by calculating the future delay of the different priorities and adjusting their quota of...