Consolidation of commands in a buffered input/output device

Details Consolidation of commands in a buffered input/output device Consolidation of commands in a buffered input/output device

G - Physics

06

F

354/236, 354/236

G06F 3/12 (2006.01) G06F 3/06 (2006.01) G06F 9/312 (2006.01) G06F 13/12 (2006.01) G06K 15/10 (2006.01)

Patent

CA 1324220

CONSOLIDATION OF COMMANDS IN A BUFFERED INPUT/OUTPUT DEVICE ABSTRACT OF THE DISCLOSURE In a data processing system which includes a host computer connected by a channel interface unit through an input/output interface and control unit to an input/output device, commands and data associated with the commands are received in a buffer and first checked to determine whether the command has any pertinent data. If such check reveals that there is no pertinent data associated with a given command, that command is changed to an immediate command. Otherwise, the command is given a pointer in the buffer which prioritizes the order in which it will be carried out. Where a command is determined to have no pertinent data associated with such command, and a previously buffered command still in the buffer has pertinent data associated therewith, consolidation of the command immediate with the previously buffered command is carried out in order to improve efficiency of the input/output device.

603854

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