Page preloading using page characterization data

Details Page preloading using page characterization data Page preloading using page characterization data

2006-12-15

2010-10-05

Patel, Hetul (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C345S531000, C345S536000, C345S537000, C345S538000, C345S539000, C345S547000

Reexamination Certificate

active

07809904

ABSTRACT:
Circuits, methods, and apparatus that pre-load data that may be needed by a graphics processor to render upcoming scenes. One example determines one or more possible upcoming scenes or views. To save computing resources, the possible upcoming scenes are not fully rendered, but the addresses, and corresponding pages, of data that would be needed to render the scenes are determined. Page usage information is also gathered. Pages that would be needed to render the upcoming scenes, but which are not resident in memory, are read in from a disk drive and stored in memory before they are needed. Pages that are infrequently used are removed from physical memory. In this way, when the scene changes, a large number of page faults do not occur in one frame, rather, they are distributed among several frames.

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