Feedback performance control in software services. T.F. Abdelzaher, J.A. Stankovic, C. Lu, R. Zhang, and Y. Lu, Feedback Performance Control in Software Services, IEEE Control Systems, 23(3): 74-90, June 2003. . Overview. SW systems become larger and bigger
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T.F. Abdelzaher, J.A. Stankovic, C. Lu, R. Zhang, and Y. Lu, Feedback Performance Control in Software Services, IEEE Control Systems, 23(3): 74-90, June 2003.
-> Precise workload/system model unknown a priori
-> This paper focuses on web servers
Liquid task model
Fig. 1 Server architecture: (a) computing model (b) control-oriented
+ b1u(k-1) + b2u(k-2) + … + bnu(k-n)
-> Claim connection delay dominates service response time
-> Scheduling can also significantly relative delay ratio, but it is not considered