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Managing system power based on utilization statistics

  • US 7,222,245 B2
  • Filed: 04/26/2002
  • Issued: 05/22/2007
  • Est. Priority Date: 04/26/2002
  • Status: Expired due to Fees
First Claim
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1. A method of managing power of a system, comprising the steps of:

  • identifying a resource consuming power of the system;

    changing utilization of the resource affects a parameter;

    representing a mean value of a plurality of utilization values of the resource by a first variable;

    representing a mean value of a plurality of values of the parameter by a second variable;

    determining a relationship between the first variable and the second variable;

    for a selected value of the second variable, based on the relationship, selecting a corresponding value of the first variable, andcausing the resource to be utilized at a level corresponding to the selected value of the first variable;

    whereina value of the first variable is calculated from a plurality of utilization values of the resource that are periodically obtained;

    a value of the second variable is calculated from a plurality of values of the parameter that are periodically obtained;

    associating the selected value of the second variable with a probability for this value to be below a predetermined value;

    based on this probability and the selected value of the second variable, determining a new value of the second variable; and

    selecting a new value of the first variable corresponding to the new value of the second variable.

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