alluxio.examples

Class Performance

java.lang.Object

alluxio.examples.Performance

public final class Performance
extends Object

Example to show the performance of Alluxio.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Performance.AlluxioReadWorker A worker in Alluxio for read operations.
static class	Performance.AlluxioWriterWorker A worker in Alluxio for write operations.
static class	Performance.GeneralWorker A general worker.
static class	Performance.HdfsWorker A worker for HDFS.
static class	Performance.Worker Base class for workers used in this example.

Method Summary

Methods

Modifier and Type	Method and Description
static void	createFiles() Creates the files for this example.
static void	logPerIteration(long startTimeMs, int times, String msg, int workerId) Writes log information.
static void	main(String[] args) Runs the performance test.

Methods inherited from class java.lang.Object

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

Method Detail

createFiles

public static void createFiles()
                        throws AlluxioException,
                               IOException

Creates the files for this example.

Throws:

AlluxioException - if creating a file fails

IOException - if a non-Alluxio related exception occurs

logPerIteration

public static void logPerIteration(long startTimeMs,
                   int times,
                   String msg,
                   int workerId)

Writes log information.

Parameters:

startTimeMs - the start time in milliseconds

times - the number of the iteration

msg - the message

workerId - the id of the worker

main

public static void main(String[] args)
                 throws Exception

Runs the performance test. Usage: java -cp <ALLUXIO-VERSION> alluxio.examples.Performance <MasterIp> <FileNamePrefix> <WriteBlockSizeInBytes> <BlocksPerFile> <DebugMode:true/false> <Threads> <FilesPerThread> <TestCaseNumber> <BaseFileNumber>

Parameters:

args - the arguments for this example

Throws:

Exception - if the example fails