NDLI: An adaptive model of task scheduling based on QoS feedback control

Content Provider	IEEE Xplore Digital Library
Author	Qi Qi Jianxin Liao Xiaomin Zhu Chun Wang Hai Huang
Copyright Year	2008
Description	Author affiliation: State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing (Qi Qi; Jianxin Liao; Xiaomin Zhu; Chun Wang; Hai Huang)
Abstract	The traditional RR (Round Robin) task scheduling algorithms and real-time feedback control models are hard to satisfy the QoS changing demands for non-real-time tasks on data value-added services systems. An adaptive model of task scheduling is proposed in this paper based on the IDP (integrated data value-added services platform) project. The model includes a hierarchical scheduling algorithm, taking feedback QoS information, such as message sending success rate and the user's attention degree into account while controlling the task execution, so the system can automatically adapt to the shaking of the bandwidth of network links and the changing of user's demand. Experiments on the performance of the algorithm are taken in IDP in the laboratory. Result of the experiment show that the variance of system operational efficiency is less than 0.0478 and the task unit response time is decreasing function for user's inquiring times. So the adaptive task scheduling model can effectively solve the scheduling of real-time tasks and non-real-time tasks in data value-added services system, and it is also useful of other system by plugging in some feedback controller module.
Starting Page	1065
Ending Page	1069
File Size	495222
Page Count	5
File Format	PDF
ISBN	9781424423736
DOI	10.1109/CHINACOM.2008.4685209
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Adaptive systems Laboratories Feedback control Adaptive control non-real time task Scheduling algorithm QoS feedback control Programmable control Bandwidth Automatic control task scheduling Round robin
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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