com.bigdata.io

Class TestIO

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.io.TestIO

All Implemented Interfaces:

junit.framework.Test

public class TestIO
extends TestCase2

Low level IO performance tests in support of bigdata design options.

Version:

$Id$

Author:

Bryan Thompson

See Also:

information about storage hardware is available under windows using Programs > Accessories > System Tools > System Information. See the Components > Storage > Disks view., http://www.jroller.com/page/cpurdy/20040907, http://alphaworks.ibm.com/tech/aio4j, http://coconut.codehaus.org/

Nested Class Summary

Nested classes/interfaces inherited from class junit.framework.TestCase2

TestCase2.MyProperties, TestCase2.RandomType

Field Summary

Fields inherited from class junit.framework.TestCase2

_randomType, log

Constructor Summary

Constructors

Constructor and Description
TestIO()
TestIO(String arg0)

Method Summary

Methods

Modifier and Type	Method and Description
void	test_001() Test of raw IO performance for random writes.
void	test_commitsPerSec() Low level test of the ability to modify a file a sync it to the underlying storage media.
void	test_formats()
void	test_units()

Methods inherited from class junit.framework.TestCase2

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualsWithinUlps, assertSameArray, assertSameArray, assertSameBigDecimal, assertSameBigDecimal, assertSameBigInteger, assertSameBigInteger, assertSameIterator, assertSameIterator, assertSameIteratorAnyOrder, assertSameIteratorAnyOrder, assertSameValue, assertSameValue, assertZeroUlps, assertZeroUlps, fail, getInnerCause, getNormalInt, getProjectBuildPath, getProperties, getRandomObject, getRandomObject, getRandomOrder, getRandomString, getTestInputStream, getTestResource, getTestResource, getUlps, getUlps, isDEBUG, isDEBUG, isINFO, isINFO, isInnerCause, logProperties

Methods inherited from class junit.framework.TestCase

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

TestIO

public TestIO()

TestIO

public TestIO(String arg0)

Parameters:

arg0 -

Method Detail

test_formats

public void test_formats()

test_units

public void test_units()

test_001

public void test_001()
              throws IOException

Test of raw IO performance for random writes.

Throws:

IOException

test_commitsPerSec

public void test_commitsPerSec()
                        throws IOException

Low level test of the ability to modify a file a sync it to the underlying storage media. This test is interested in the absolute maximum syncs per second that the hardware can support.

Throws:

IOException