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객체 지향 컴퓨터 시스템의 Method Lookup 캐쉬에 관한 연구
김병기,김관중,염혜란 崇實大學校 生産技術硏究所 1993 論文集 Vol.23 No.-
We propose a new method lookup cache for improving the time and the memory efficiency in the object oriented system. The method lookup is a major execution overhead in the object oriented programs. For improving the performance of object oriented program execution, an efficient method lookup mechanism is essential. The static cache, a solution to the method lookup problem, provides a constant time lookup, but consumes excessive memory. Many object oriented system use the coloring scheme that reduces memory size in the static cache. However memory waste still exists in the colored cache. New cache proposed in this paper provides a solution to the memory consumption problem. Moreover it is efficient for solving the multiple inheritance problem that causes memory consumption in the colored cache. Each entry of the new cache consists of method ID and code address fields. Furthermore, the tagging mechanism in this cache enables to perform efficiently the method lookup for methods that have a same name and are defined in different classes.