Efficient priority assignment policies for distributed real-time database systems

Authors:
Hong-Ren Chen;Y. H. Chin
Affiliations:
Department of Digital Content and Technology, National Taichung University, Taichung, Taiwan, R.O.C.;Department of Computer Science, National Tseng-Hua University, Hsinchu, Taiwan, R.O.C.
Venue:
CEA'07 Proceedings of the 2007 annual Conference on International Conference on Computer Engineering and Applications
Year:
2007

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Abstract

A lot of research works have been done in this filed of real-time database systems to seek for optimizing transaction scheduling. The findings of such studies examining the use of various algorithms of priority assignment policy have been discussed widely. One drawback of these approaches is presenting poor performance due to neglect repetitively missed real-time transactions. In this paper, an improved priority assignment policy named Flexible High Reward with concurrency control factor (FHR-CF) is proposed to reduce the MissRatio and WastedRatio.