Task scheduling mechanism for large data processing systems

Details Task scheduling mechanism for large data processing systems Task scheduling mechanism for large data processing systems

G - Physics

06

F

354/234

G06F 9/46 (2006.01) G06F 9/48 (2006.01)

Patent

CA 1289674

ABSTRACT OF THE DISCLOSURE A task control mechanism (13) for maintaining a queue of ready or available processes linked together according to an assigned priority for a plurality of central processors (10) where the processors (10) may be assigned to the highest priority task when that processor is not busy executing some higher priority task. The task control mechanism (13) also includes a mechanism (26) for computing task priorities as new task are inserted into the queue or removed. The mechanism (13) also maintains an event table (20a) which is really a table of event designations to be allocated to different processes upon request where the requesting processes assign a particular function or "meaning" to the event designation. The mechanism (13) of the present invention maintains the state of such allocated events in the event table (20a) and signals the related (or "waiting") processes that an event has happened to that the particular system central processors (10) assigned to execute those particular processes may then proceed with their execution.

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