org.apache.oodt.cas.resource.monitor.ganglia.loadcalc

Class WeightedAverageLoadCalc

java.lang.Object

org.apache.oodt.cas.resource.monitor.ganglia.loadcalc.WeightedAverageLoadCalc

All Implemented Interfaces:

LoadCalculator

public class WeightedAverageLoadCalc
extends Object
implements LoadCalculator

Version:

$Revision$

Author:

rajith, mattmann

Constructor Summary

Constructors

Constructor and Description
WeightedAverageLoadCalc(double loadOneWeight, double loadFiveWeight, double loadFifteenWeight) Make a new WeightedAverageLoadCalc LoadCalculator

Method Summary

Modifier and Type	Method and Description
double	calculateLoad(Map<String,String> nodeMetrics) Calculate the load and normalize it within the given node's capacity

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WeightedAverageLoadCalc

public WeightedAverageLoadCalc(double loadOneWeight,
                               double loadFiveWeight,
                               double loadFifteenWeight)

Make a new WeightedAverageLoadCalc LoadCalculator

Parameters:

loadOneWeight - weight for the load_one

loadFiveWeight - weight for the load_five

loadFifteenWeight - weight for the load_fifteen

Method Detail

calculateLoad

public double calculateLoad(Map<String,String> nodeMetrics)

Calculate the load and normalize it within the given node's capacity load is calculated as follows weightedLoadOne = loadOneWeight * minimum of (numOfCPUs, ((loadOne/numOfCPUs) * numOfCPUs)) load = (weightedLoadOne + weightedLoadFive + weightedLoadFifteen) / (loadOneWeight + loadFiveWeight + loadFifteenWeight)

Specified by:

calculateLoad in interface LoadCalculator

Parameters:

nodeMetrics - status metrics of the resource node

Returns:

An integer representation of the load within 0 and node's capacity