Computer resource proportional utilization and response time scheduling
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
May 22, 1997
filing date -
May 22, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of scheduling jobs to be executed by a resource in a computer system wherein the jobs are grouped in 'classes.' The job classes vying for the resource's attention are arranged in a hierarchy. Each job class has a time-function value that controls when the job class is selected by the resource if processing time becomes available. Within a particular level of the hierarchy, scheduling priorities are defined by one or more time-based functions, each of which may be constant or dynamically varying. When constant time-based functions are used, each job class has a schedule value that remains fixed with time. When dynamic time-based functions are used, job class 'time-function values' are modified to alter the timing by which the job class(es) acquire the resource.
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