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SEOF: an adaptable object prefetch policy for object-oriented database systems

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2 Author(s)
Jung-Ho Ahn ; Dept. of Comput. Eng., Seoul Nat. Univ., South Korea ; Hyoung-Joo Kim

The performance of object access can be drastically improved by an efficient object prefetch policy. In this paper, we present a new prefetch policy, called Selective Eager Object Fetch (SEOF), which prefetches objects only from selected candidate pages without using any high-level object semantics. Our policy considers both the correlations and the frequencies of fetching objects. Unlike existing prefetch policies, this policy utilizes the memory and the swap space of clients efficiently without resource exhaustion. Furthermore, the proposed policy has good adaptability to both the effectiveness of clustering and the database size. We show the performance of the proposed policy through experiments over various multi-client system configurations

Published in:

Data Engineering, 1997. Proceedings. 13th International Conference on

Date of Conference:

7-11 Apr 1997