Cache memory with an allocable micro-cache

Details Cache memory with an allocable micro-cache Cache memory with an allocable micro-cache

1996-07-15

2000-03-07

Bragdon, Reginald G.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711113, 711137, 711136, G06F 1208

Patent

active

060353759

ABSTRACT:
A cache management system and method monitors and controls the contents of cache memory coupled to at least one host and at least one data storage device. A cache indexer maintains a current index of data elements which are stored in cache memory. A sequential data access indicator, responsive to the cache index and to a user selectable sequential data access threshold, determines that a sequential data access is in progress for a given process and provides an indication of the same. The system and method allocate a micro-cache memory to any process performing a sequential data access. In response to the indication of a sequential data access in progress and to a user selectable maximum number of data elements to be prefetched, a data retrieval requestor requests retrieval of up to the selected maximum number of data elements from a data storage device. A user selectable number of sequential data elements determines when previously used micro-cache memory locations will be overwritten. A method of dynamically monitoring and adjusting cache management parameters is also presented.

REFERENCES:
patent: 4463424 (1984-07-01), Mattson et al.
patent: 4493081 (1985-01-01), Schmidt
patent: 4503501 (1985-03-01), Coulson et al.
patent: 5146578 (1992-09-01), Zangenehpour
patent: 5357623 (1994-10-01), Megory-Cohen
patent: 5418921 (1995-05-01), Cortney et al.
patent: 5651136 (1997-07-01), Denton et al.
patent: 5717893 (1998-02-01), Mattson
Kirk et al., "Allocating SMART Cache Segments for Schedulability", Proceedings EUROMICRO '91 Workshop on Real-Time Systems, IEEE Computer Society Press, 1991, pp. 41-50.
"Allocation of Cache Memory Among Competing Processes", IBM Technical Disclosure Bulletin, vol. 31, No. 9, Feb. 1989, pp. 204-209.

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