Package de.gsi.chart.utils

Class SimplePerformanceMeter

java.lang.Object

de.gsi.chart.utils.SimplePerformanceMeter

public class SimplePerformanceMeter
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
SimplePerformanceMeter(javafx.scene.Scene scene, long updateDuration)

Method Summary

Modifier and Type	Method	Description
javafx.beans.property.ReadOnlyDoubleProperty	actualFrameRateProperty()
javafx.beans.property.DoubleProperty	averageFactorProperty()	IIR-alpha filter constant as in y(n) = alpha * x(n) + (1-alpha) * y(n-1) typically: alpha ~ Ts /(Ts+T) with 'Ts' being the sampling period, and 'T' the desired IIR time constant
javafx.beans.property.ReadOnlyDoubleProperty	averageFrameRateProperty()
javafx.beans.property.ReadOnlyDoubleProperty	averageFxFrameRateProperty()
javafx.beans.property.ReadOnlyDoubleProperty	averageProcessCpuLoadProperty()
javafx.beans.property.ReadOnlyDoubleProperty	averageSystemCpuLoadProperty()
protected static double	computeAverage(double newValue, double oldValue, double alpha)
void	deregisterListener()
javafx.beans.property.ReadOnlyDoubleProperty	fxFrameRateProperty()
double	getActualFrameRate()
double	getAverageFrameRate()
double	getAverageFxFrameRate()
double	getAverageProcessCpuLoad()
double	getAverageSystemCpuLoad()
double	getFxFrameRate()
double	getProcessCpuLoad()
static double	getProcessCpuLoadInternal()
double	getSystemCpuLoad()
boolean	isSceneDirty()
javafx.beans.property.ReadOnlyDoubleProperty	processCpuLoadProperty()
void	registerListener()
void	resetAverages()
javafx.beans.property.ReadOnlyDoubleProperty	systemCpuLoadProperty()

Methods inherited from class java.lang.Object

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

Constructor Detail

SimplePerformanceMeter

public SimplePerformanceMeter(javafx.scene.Scene scene,
                              long updateDuration)

Method Detail

actualFrameRateProperty

public javafx.beans.property.ReadOnlyDoubleProperty actualFrameRateProperty()

averageFactorProperty

public javafx.beans.property.DoubleProperty averageFactorProperty()

IIR-alpha filter constant as in y(n) = alpha * x(n) + (1-alpha) * y(n-1) typically: alpha ~ Ts /(Ts+T) with 'Ts' being the sampling period, and 'T' the desired IIR time constant

Returns:

average factor alpha

averageFrameRateProperty

public javafx.beans.property.ReadOnlyDoubleProperty averageFrameRateProperty()

averageFxFrameRateProperty

public javafx.beans.property.ReadOnlyDoubleProperty averageFxFrameRateProperty()

averageProcessCpuLoadProperty

public javafx.beans.property.ReadOnlyDoubleProperty averageProcessCpuLoadProperty()

averageSystemCpuLoadProperty

public javafx.beans.property.ReadOnlyDoubleProperty averageSystemCpuLoadProperty()

deregisterListener

public void deregisterListener()

fxFrameRateProperty

public javafx.beans.property.ReadOnlyDoubleProperty fxFrameRateProperty()

getActualFrameRate

public double getActualFrameRate()

getAverageFrameRate

public double getAverageFrameRate()

getAverageFxFrameRate

public double getAverageFxFrameRate()

getAverageProcessCpuLoad

public double getAverageProcessCpuLoad()

getAverageSystemCpuLoad

public double getAverageSystemCpuLoad()

getFxFrameRate

public double getFxFrameRate()

getProcessCpuLoad

public double getProcessCpuLoad()

getSystemCpuLoad

public double getSystemCpuLoad()

processCpuLoadProperty

public javafx.beans.property.ReadOnlyDoubleProperty processCpuLoadProperty()

registerListener

public void registerListener()

resetAverages

public void resetAverages()

systemCpuLoadProperty

public javafx.beans.property.ReadOnlyDoubleProperty systemCpuLoadProperty()

isSceneDirty

public boolean isSceneDirty()

computeAverage

protected static double computeAverage(double newValue,
                                       double oldValue,
                                       double alpha)

getProcessCpuLoadInternal

public static double getProcessCpuLoadInternal()