org.tinfour.demo.performance

Class TwinBuildTest

java.lang.Object

org.tinfour.demo.performance.TwinBuildTest

All Implemented Interfaces:

IDevelopmentTest

public class TwinBuildTest
extends Object
implements IDevelopmentTest

Provides a parallel comparison of two different instances of the Incremental TIN classes. Because a modern operating system is such a noisy test environment, it is often difficult to isolate the effect of different optimizations in an implementation. One never knows what the system is doing at the same time one is performing a test. To address this uncertainty, this class uses repeated tests to measure the relative performance of two separate implementations. Alternately, as a self-diagnostic, it can compare the relative performance of two instances of the same class.

Constructor Summary

Constructors

Constructor and Description
TwinBuildTest()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Perform a simple test of the TIN building functions a fixed number of times collecting timing statistics.
void	runTest(PrintStream ps, String[] args) Run the main test for the implementation, sending any output to the specified print stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

TwinBuildTest

public TwinBuildTest()

Method Detail

main

public static void main(String[] args)

Perform a simple test of the TIN building functions a fixed number of times collecting timing statistics.

Uses the standard Tinfour test application arguments and the following special-purpose elements:

• -classA The canonical class name for test class A
• -classB The canonical class name for test class B

Parameters:

args - the command-line arguments

runTest

public void runTest(PrintStream ps,
                    String[] args)
             throws IOException

Description copied from interface: IDevelopmentTest

Run the main test for the implementation, sending any output to the specified print stream.

Many, but not all, implementations of this interface will perform file I/O and may throw IOExceptions in the event of an unrecoverable I/O exception.

The argument specification is often supplied from the command line. Most implementations will throw an IllegalArgumentException when supplied with an invalid or unrecognized argument.

Specified by:

runTest in interface IDevelopmentTest

Parameters:

ps - a valid print-stream for recording results of processing.

args - a set of arguments for configuring the processing, often accepted from the command line.

Throws:

IOException - in the event of an unrecoverable I/O error.