Cache memory managing method for computer system

Details Cache memory managing method for computer system Cache memory managing method for computer system

2007-06-26

2007-06-26

Song, Jasmine (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S153000, C711S173000, C707S793000, C707S793000

Reexamination Certificate

active

11443719

ABSTRACT:
A computer system acquires mapping information of data storage regions in respective layers from a layer of DBMSs to a layer of storage subsystems, grasps correspondence between DB data and storage positions of each storage subsystem on the basis of the mapping information, decides a cache partitioning in each storage subsystem on the basis of the correspondence and sets the cache partitioning for each storage subsystem. When cache allocation in the DBMS or the storage subsystem needs to be changed, information for estimating the cache effect due to the change in cache allocation acquired by the DBMS is used for estimating the cache effect in the storage subsystem.

REFERENCES:
patent: 6549920 (2003-04-01), Obara et al.
patent: 6615317 (2003-09-01), Roseborough et al.
patent: 2003/0093647 (2003-05-01), Mogi et al.
patent: 2004/0049636 (2004-03-01), Campbell et al.
patent: 2004/0054648 (2004-03-01), Mogi et al.
patent: 2004/0193658 (2004-09-01), Kawamura et al.

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