System for allocating an integer unit of memory greater than a r

Details System for allocating an integer unit of memory greater than a r System for allocating an integer unit of memory greater than a r

1998-05-29

2000-11-14

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

710 26, 710103, 712300, 713224, 713228, G06F 1314

Patent

active

061483508

ABSTRACT:
A method and system for efficiently transferring data between a host computer and a peripheral component which is removably coupled to the host computer. In one embodiment of the present invention, a peripheral component driver such as, for example, a network interface card driver receives a request from a peripheral component, such as, for example, a network interface card, to transfer data from the peripheral component to memory of the host computer. The data to be transferred requires a first block of memory in the host computer wherein the first block of the memory has a first size. The present embodiment then allocates a second block of memory in the host computer to receive the data from the peripheral component. In the present invention, the second block of memory has a second size which is greater than the first size. Additionally, the second block of memory comprises an integer unit of the memory. In so doing, the present invention minimizes CPU overhead associated with data transfers between a peripheral component and the memory of a host computer. The present invention also reduces latency associated with data transfers between a peripheral component and the memory of a host computer.

REFERENCES:
patent: 5535352 (1996-07-01), Bridges et al.
patent: 5651136 (1997-07-01), Denton et al.
patent: 5859999 (1999-01-01), Morris et al.
patent: 5943482 (1999-08-01), Culley et al.

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