Locally buffered cache extensions having associated control...

Details Locally buffered cache extensions having associated control... Locally buffered cache extensions having associated control...

2006-08-08

2006-08-08

Kim, Hong (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S162000, C711S170000, C711S144000, C711S145000, C714S006130

Reexamination Certificate

active

07089357

ABSTRACT:
A method and apparatus for cache management in a data storage system is presented. A table with tags corresponding to cache slots in a cache memory is provided. A copy of the table is stored in a local buffer in response to a request for allocation of one of the cache slots. The locally buffered table is used to make the requested cache slot allocation. A set of control parameters associated with the locally buffered table is used to determine if the locally buffered table can be re-used for cache slot allocation in response to a subsequent request for cache slot allocation. User-selectable levels are provided to control the degree of locally buffered table re-use. The user-selectable levels determine which values of the control parameters are used.

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