Threshold-based and priority adaptive session-based admission control

Session-based workload measurement is a newer and more precise method than request-based measurement to evaluate and control the e-commerce web server performance. In this paper, a new session-based admission control-threshold-based and priority adaptive session-based admission control (TBPA-SBAC) is considered. Two CPU utilization thresholds are used for starting different control methods and different priorities are given to the requests according to their sequence numbers in their session in order to guarantee the completeness and low response time of longer sessions that are more likely to be valuable sale sessions. Experiments show that TBPA-SBAC scheme have the advantages than other SBAC schemes with higher throughput in completed sessions and lower session abortions.