Memory management system employing multiple buffer caches

Details Memory management system employing multiple buffer caches Memory management system employing multiple buffer caches

1997-09-19

2000-05-09

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711118, G06F 1208

Patent

active

060617632

ABSTRACT:
Computer systems and computer implemented methods are provided for managing memory in a database management system. The computer memory is partitioned into a plurality of buffer caches, each of which is separately addressable. One buffer cache is set aside as a default buffer cache, while the other buffer caches are reserved for specific data objects meeting certain predefined criteria. Those objects meeting the predefined criteria are stored in reserved buffer caches where they are likely to remain for a relatively long period of time (in comparison to data objects stored in the default buffer caches). A buffer cache may have a plurality of memory pools, each of which contains multiple storage blocks. The storage blocks in a given memory pool are identically sized, while the storage blocks in one memory pool are sized differently from the storage blocks in another memory pool.

REFERENCES:
patent: 5655013 (1997-08-01), Gainsboro
patent: 5717893 (1998-02-01), Mattson

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