Method for enhancing performance of data access between a...

Details Method for enhancing performance of data access between a... Method for enhancing performance of data access between a...

2011-06-21

2011-06-21

Chen, Alan (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Flow controlling

C710S005000, C710S036000, C719S321000

Reexamination Certificate

active

07966433

ABSTRACT:
A method for enhancing performance of data access between a personal computer and a USB Mass Storage is provided. The personal computer is equipped with a plurality of layers of drivers regarding USB data access, and a lower layer of the layers of the drivers includes a USB Bus Driver. The method includes: monitoring commands sent from an operating system (OS) file system to an upper layer; and when a command sent from the OS file system to the upper layer is utilized for accessing data of a data amount that is greater than a predetermined threshold value, omitting a portion of a plurality of IRPs, automatically generating a plurality of replies for replying to the omitted IRPs, and altering at least one IRP of remaining IRPs in order to correctly access the data with a lower IRP count, wherein the plurality of IRPs is associated with the command.

REFERENCES:
patent: 6915368 (2005-07-01), Lin
patent: 2005/0120170 (2005-06-01), Zhu

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