net.openhft.chronicle.core.util

Class Histogram

java.lang.Object

net.openhft.chronicle.core.util.Histogram

All Implemented Interfaces:

NanoSampler

public class Histogram
extends Object
implements NanoSampler

Constructor Summary

Constructors

Constructor and Description
Histogram()
Histogram(int powersOf2, int fractionBits)
Histogram(int powersOf2, int fractionBits, double minValue)

Method Summary

Modifier and Type	Method and Description
void	add(Histogram h)
boolean	equals(Object obj)
long	floor()
int	fractionBits()
double[]	getPercentiles()
double[]	getPercentiles(double[] percentileFor)
void	init(int powersOf2, int fractionBits, long overRange, long totalCount, long floor) Re initialise this histogram from deserialized data
long	overRange()
double	percentile(double fraction)
static double[]	percentilesFor(long count)
int	powersOf2()
void	reset()
int	sample(double time)
int[]	sampleCount()
void	sampleNanos(long nanos)
static Histogram	timeMicros()
String	toLongMicrosFormat(DoubleFunction<Double> toMicros)
String	toMicrosFormat()
String	toMicrosFormat(DoubleFunction<Double> toMicros)
String	toString()
long	totalCount()

Methods inherited from class java.lang.Object

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

Constructor Detail

Histogram

public Histogram()

Histogram

public Histogram(int powersOf2,
                 int fractionBits)

Histogram

public Histogram(int powersOf2,
                 int fractionBits,
                 double minValue)

Method Detail

timeMicros

@NotNull
public static Histogram timeMicros()

Returns:

Histogram for use with System.nanoTime() up to 4 second delay.

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

@NotNull
public String toString()

Overrides:

toString in class Object

init

public void init(int powersOf2,
                 int fractionBits,
                 long overRange,
                 long totalCount,
                 long floor)

Re initialise this histogram from deserialized data

fractionBits

public int fractionBits()

powersOf2

public int powersOf2()

overRange

public long overRange()

sampleCount

public int[] sampleCount()

add

public void add(@NotNull
                Histogram h)

sample

public int sample(double time)

percentile

public double percentile(double fraction)

percentilesFor

public static double[] percentilesFor(long count)

getPercentiles

@NotNull
public double[] getPercentiles()

getPercentiles

@NotNull
public double[] getPercentiles(double[] percentileFor)

toMicrosFormat

@NotNull
public String toMicrosFormat()

toMicrosFormat

@NotNull
public String toMicrosFormat(@NotNull
                                      DoubleFunction<Double> toMicros)

toLongMicrosFormat

@NotNull
public String toLongMicrosFormat(@NotNull
                                          DoubleFunction<Double> toMicros)

totalCount

public long totalCount()

floor

public long floor()

reset

public void reset()

sampleNanos

public void sampleNanos(long nanos)

Specified by:

sampleNanos in interface NanoSampler