org.apache.hadoop.hbase.regionserver

Class EncodedSeekPerformanceTest

java.lang.Object

org.apache.hadoop.hbase.regionserver.EncodedSeekPerformanceTest

public class EncodedSeekPerformanceTest
extends Object

Test seek performance for encoded data blocks. Read an HFile and do several random seeks.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_NUMBER_OF_SEEKS Default number of seeks which will be used in benchmark.

Constructor Summary

Constructors

Constructor and Description
EncodedSeekPerformanceTest() Use this benchmark with default options

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Command line interface:
void	runTests(Path path, DataBlockEncoding[] encodings)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NUMBER_OF_SEEKS

public static int DEFAULT_NUMBER_OF_SEEKS

Default number of seeks which will be used in benchmark.

Constructor Detail

EncodedSeekPerformanceTest

public EncodedSeekPerformanceTest()

Use this benchmark with default options

Method Detail

runTests

public void runTests(Path path,
                     DataBlockEncoding[] encodings)
              throws IOException

Parameters:

path - Path to the HFile which will be used.

encoders - List of encoders which will be used for tests.

Throws:

IOException - if there is a bug while reading from disk

main

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

Command line interface:

Parameters:

args - Takes one argument - file size.

Throws:

IOException - if there is a bug while reading from disk