psl

Class TimingStats

java.lang.Object

psl.TimingStats

All Implemented Interfaces:

Serializable

public class TimingStats
extends Object
implements Serializable

Class keeping statistics of execution times.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TimingStats() Creates a new, empty, timing statistics.
TimingStats(TimingStats c) Copy constructor.

Method Summary

Modifier and Type	Method and Description
void	add(long timing) Adds a new timing to the statistics.
static TimingStats	aggregate(List<TimingStats> data) Aggregates several timing stats.
double	average() Obtains the average execution time.
long	executions() Obtains the total number of executions.
long	maximum() Obtains the slowest execution time.
long	minimum() Obtains the fastest execution time.
double	stdev() Obtains the standard deviation of the execution time.
long	total() Obtains the total execution time.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimingStats

public TimingStats()

Creates a new, empty, timing statistics.

TimingStats

public TimingStats(TimingStats c)

Copy constructor.

Parameters:

c - the object to copy data from, cannot be null

Method Detail

executions

public long executions()

Obtains the total number of executions.

Returns:

the number of executions

minimum

public long minimum()

Obtains the fastest execution time.

Returns:

the execution time

maximum

public long maximum()

Obtains the slowest execution time.

Returns:

the execution time

total

public long total()

Obtains the total execution time.

Returns:

the execution time

average

public double average()

Obtains the average execution time.

Returns:

the execution time.

stdev

public double stdev()

Obtains the standard deviation of the execution time.

Returns:

the standard deviation

add

public void add(long timing)

Adds a new timing to the statistics.

Parameters:

timing - the timing, minimum value is zero

aggregate

public static TimingStats aggregate(List<TimingStats> data)

Aggregates several timing stats.

Parameters:

data - the data to aggregate, cannot be null

Returns:

the aggregated time