Boots – shoes – and leggings
Patent
1994-12-12
1996-04-30
Kim, Matthew M.
Boots, shoes, and leggings
395440, 364DIG1, 36424341, 36424612, G06F 1212
Patent
active
055133363
ABSTRACT:
A cache management system and method monitors and controls the contents of cache memory. Cache memory is organized into at least a first section for storing data waiting to be written to a longer term data storage device, and a second section for storing data elements which have been written to the longer term data storage device. A time indication provider provides a time indication signal to a cache indexer, for maintaining a cache index representing data elements which are stored in cache as well as an indication that a data element must be written to a longer term data storage device. A cache manager is responsible for placing data elements into and removing data elements from the cache memory. The cache manager determimes the amount of time that the data element has been stored in cache as well as the average period of time that elapses between a data element being inserted in cache and being removed from cache. Based on a comparison of the average period of time a data element spends in cache, and the amount of time a data element spends in cache, and the amount of time that the element has been stored in cache, the cache manager determines whether to place the data element in the top of the cache, to allow the data element to remain in cache a longer period of time, or at the bottom of the cache which will cause the data element to be removed from cache more quickly.
REFERENCES:
patent: 4607331 (1986-08-01), Goodrich, Jr. et al.
patent: 5140690 (1992-08-01), Hata et al.
patent: 5283884 (1994-02-01), Menon et al.
Kopylovitz Haim
Vishlitzky Natan
Bourque Daniel J.
Carroll Kevin J.
EMC Corporation
Kim Matthew M.
Lowry David D.
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