at.borkowski.spicej.rt

Class RealTimeTickSourceTests

java.lang.Object

at.borkowski.spicej.rt.RealTimeTickSourceTests

public class RealTimeTickSourceTests
extends Object

This class performs a series of tests measuring the performance of RealTimeTickSource. Since these tests do not fulfill some crucial criteria, they are not classified as regular (unit) tests in the classical meaning, and are not executed automatically upon builds.

• They don't have a binary yes/no result since they measure system performance
• They use a real-time actions (sleeping), in large numbers -- and thus take a significant amount of time
• They rely on real time clocks
• They can be flakey on heavy load conditions

Field Summary

Fields

Modifier and Type	Field and Description
static int	BUFFER_CAPACITY How many tick measurements to allow maximally
static double	EPSILON The maximal relative error permitted (0.03 = 3%)
static long	MS 1 ms in ns
static int	RETRIES How often a test is tried (with increasing n) before it is marked as failed.

Constructor Summary

Constructors

Constructor and Description
RealTimeTickSourceTests()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)
static void	run()

Methods inherited from class java.lang.Object

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

Field Detail

EPSILON

public static final double EPSILON

The maximal relative error permitted (0.03 = 3%)

See Also:

Constant Field Values

RETRIES

public static final int RETRIES

How often a test is tried (with increasing n) before it is marked as failed. This value has been proven useful by experimenting.

See Also:

Constant Field Values

MS

public static final long MS

1 ms in ns

See Also:

Constant Field Values

BUFFER_CAPACITY

public static final int BUFFER_CAPACITY

How many tick measurements to allow maximally

See Also:

Constant Field Values

Constructor Detail

RealTimeTickSourceTests

public RealTimeTickSourceTests()

Method Detail

main

public static void main(String[] args)

run

public static void run()