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객체 지향 데이터베이스에서 쓰기비용을 감안한 다중 선채취기법
남인길,도용석 大邱大學校 科學技術硏究所 1998 科學技術硏究 Vol.5 No.3
This paper presents a set of techniques for improving the efficiency of cache in object oriented database management system. The proposed method is divided into two steps. As the first step, we analyze the disc access frequency and pattern for various queries. Then, based on the analyzing results of the first step, we make prefetching of certain pages which have high degree of access frequency. In addition to this method, in this research, we propose a multiple prefetch caching algorithm that is based on the previous method. Basically this method delay page replacement by considering write cost for pages with information modification. Simulation results show that the proposed method consistently outperforms existent algorithms.