Research in Functionally Distributed Computer Systems Development. Volume IX. Memory Management in a Distributed Data Base Management System

摘要

A memory management scheme which incorporates an additional level of memory into the traditional primary-secondary storage hierarchy is proposed for utilization in distributed data base management systems. In this scheme, the memory of the back-end processor is used as an additional memory buffer. An optimal three-level memory management algorithm is presented along with an analysis of its cost in terms of page replacement. The expected performance improvement over the optimal algorithm for a two-level memory system is determined. The performance benefits of the three-level memory management are applicable to most distributed processing systems. (Author)