Database system providing methodology for extended memory...

Details Database system providing methodology for extended memory... Database system providing methodology for extended memory...

2004-07-06

2008-09-02

Ellis, Kevin (Department: 2188)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S122000

Reexamination Certificate

active

07421562

ABSTRACT:
A database system providing methodology for extended memory support is described. In one embodiment, for example, a method is described for extended memory support in a database system having a primary cache, the method comprises steps of: creating a secondary cache in memory available to the database system; mapping a virtual address range to at least a portion of the secondary cache; when the primary cache is full, replacing pages from the primary cache using the secondary cache; in response to a request for a particular page, searching for the particular page in the secondary cache if the particular page is not found in the primary cache; if the particular page is found in the secondary cache, determining a virtual address in the secondary cache where the particular page resides based on the mapping; and swapping the particular page found in the secondary cache with a page in the primary cache, so as to replace a page in the primary cache with the particular page from the secondary cache.

REFERENCES:
patent: 5680573 (1997-10-01), Rubin et al.
patent: 5706506 (1998-01-01), Jensen et al.
patent: 5727203 (1998-03-01), Hapner et al.
patent: 5799210 (1998-08-01), Cohen et al.
patent: 5812996 (1998-09-01), Rubin et al.
patent: 5822749 (1998-10-01), Agarwal
patent: 5826253 (1998-10-01), Bredenberg
patent: 5829022 (1998-10-01), Wantanabe et al.
patent: 5897634 (1999-04-01), Attaluri et al.
patent: 5940827 (1999-08-01), Hapner et al.
patent: 5974129 (1999-10-01), Bodnar
patent: 6061763 (2000-05-01), Rubin et al.
patent: 6070165 (2000-05-01), Whitmore
patent: 6115703 (2000-09-01), Bireley et al.
patent: 6199141 (2001-03-01), Weinreb et al
patent: 6216212 (2001-04-01), Challenger et al.
patent: 6243719 (2001-06-01), Ikuta et al.
patent: 6256712 (2001-07-01), Challenger et al.
patent: 6308169 (2001-10-01), Ronstrom et al.
patent: 6321235 (2001-11-01), Bird
patent: 6353833 (2002-03-01), Bird et al.
patent: 6370614 (2002-04-01), Teoman et al.
patent: 6381596 (2002-04-01), Bayer
patent: 6411968 (2002-06-01), Bamford et al.
patent: 6453321 (2002-09-01), Hill et al.
patent: 6457020 (2002-09-01), Carey et al.
patent: 6457021 (2002-09-01), Berkowitz et al.
patent: 6480944 (2002-11-01), Bradshaw et al.
patent: 6487641 (2002-11-01), Cusson et al.
patent: 6493810 (2002-12-01), Pang et al.
patent: 6502108 (2002-12-01), Day, III et al.
patent: 6557082 (2003-04-01), Josten et al.
patent: 6564230 (2003-05-01), Bamford et al.
patent: 6591266 (2003-07-01), Li et al.
patent: 6598119 (2003-07-01), Becker et al.
patent: 6609126 (2003-08-01), Smith et al.
patent: 6633862 (2003-10-01), Thompson
patent: 6701359 (2004-03-01), Calabrez et al.
patent: 6718349 (2004-04-01), Weedon
patent: 6728840 (2004-04-01), Shatil et al.
patent: 6741997 (2004-05-01), Liu et al.
patent: 6769048 (2004-07-01), Goldberg et al.
patent: 6772179 (2004-08-01), Chen et al.
patent: 6789170 (2004-09-01), Jacobs et al.
patent: 6792436 (2004-09-01), Zhu et al.
patent: 6795898 (2004-09-01), Weinreb et al.
patent: 6829680 (2004-12-01), Sugumar et al.
patent: 6836774 (2004-12-01), Melbin
patent: 6848028 (2005-01-01), Sugumar et al.
patent: 6877066 (2005-04-01), Benfield et al.
patent: 6898603 (2005-05-01), Petculescu et al.
patent: 7124249 (2006-10-01), Darcy
patent: 2003/0162544 (2003-08-01), Austin et al.
patent: 2004/0103251 (2004-05-01), Alsup
American National Standards Institute, Information Technology-Database languages—SQL (Ch 4), American National Standard ANSI/ISO/IEC 9075: 1992.
Synder, Peter, tmpfs: A virtual Memory File System, Sun Microsystems.
Date, C.J., An Introduction to Database Systems, Ch 1: Overview of Database Management, vol. 1, 5th Ed., 1990.

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