Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2004-06-21
2009-12-01
Bragdon, Reginald G (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
Reexamination Certificate
active
07627724
ABSTRACT:
The invention efficiently determines whether a container that is associated with an item of changeable data actually is associated with the freshest version of this item of changeable data. Multiple containers may exist in the virtual memory (“in-memory container”) or in a persistent storage system (“persistent container”) of a computer system and be associated with different versions of an item of changeable data. A table in the virtual memory reveals the freshness of changeable data associated with in-memory containers. One or more in-memory containers associated with one or more same items of changeable data are merged into a new persistent container and removed from the virtual memory. A persistent container is associated with a list that identifies all changeable data associated with the persistent container. An invalidation process invalidates, in the lists associated with older persistent containers, older versions of the changeable data associated with the new persistent container.
REFERENCES:
patent: 5685003 (1997-11-01), Peltonen et al.
patent: 6438706 (2002-08-01), Brown
patent: 6460054 (2002-10-01), Grummon
patent: 6535994 (2003-03-01), Kedem
patent: 6848035 (2005-01-01), Akiyama et al.
patent: 2003/0179742 (2003-09-01), Ogier et al.
patent: 2004/0041696 (2004-03-01), Hull et al.
patent: 2005/0108189 (2005-05-01), Samsonov
Hash Tables; http://www.functionx.com/bcb/classes/thashtable.htm; Apr. 5, 2004, FunctionX, Inc.
Dasan Shajan
Frable Menton J
Larimore Stefan I
Popescu-Stanesti Mihai
Bragdon Reginald G
Merchant & Gould
Microsoft Corporation
Ruiz Aracelis
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