Multi-processing system and a method of executing a...

Details Multi-processing system and a method of executing a... Multi-processing system and a method of executing a...

2007-05-14

2011-11-22

Rinehart, Mark (Department: 2111)

Electrical computers and digital data processing systems: input/

Access arbitrating

Access prioritizing

C710S240000, C710S200000

Reexamination Certificate

active

08065459

ABSTRACT:
A plurality of data processing tasks with processing elements (10) that contend for a resource (18). Execution of each task comprising executing a series of instructions. During execution indications are measured of the speed of progress of executing the instructions for respective ones of the tasks. Requests to access the resource (18) for different ones of the tasks are arbitrated, a priority for judging arbitration being assigned to each task based on the measured indication of the speed of progress of the task. At least over a part of a range of possible speed of progress values increasingly higher priority is assigned in case of increasingly lower indication of the speed of progress.

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Douceur, J.R., et al; “Progress-Based Regulation of Low-Importance Processes”; Proceedings of the ACM Symposium on Operating Systems Principles, vol. 33, No. 5; Dec. 12, 1999; pp. 247-260.

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