com.bigdata.counters.osx

Class TestParse_iostat

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.counters.osx.AbstractParserTestCase

com.bigdata.counters.osx.TestParse_iostat

All Implemented Interfaces:

junit.framework.Test

public class TestParse_iostat
extends AbstractParserTestCase

OSX does have an iostat. This is not the same as the utility we support under linux. iostat -d -C -n 999 -w 60 provides an update every 60 seconds. The -d tells it to report just device statistics (it will report CPU and load average statistics as well by default). The "-C" option tells it that you want the CPU stats anyway (this includes IOWait). (A "-U" option may be used to explicitly request the load average stats.) The "-n 999" tells it to display up to 999 devices. Otherwise it will truncate the output at 80 columns.

           disk0           disk1           disk2           disk3           disk4       cpu
     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s  us sy id
   197.14  26  5.10    79.10   1  0.07     3.74   0  0.00    41.31   0  0.00    13.03   0  0.00  31  6 63
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  53  4 43
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  56  8 37
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  54  9 37
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  57  8 35
 

The output of this command depends on the #of devices which are attached, and that can actually change over time (device connect/disconnect). Unless we are going to aggregate across the devices reported in each time period it might make more sense to only use this for the CPU stats, which can be done by specifying "-n 0" for NO devices.

  iostat -d -C -n 0 -w 1 | cat
       cpu
  us sy id
  31  6 63
  57  8 35
  57  6 37
 

Regardless, the headers will repeat periodically.

Author:

thompsonbry@users.sourceforge.net

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
TestParse_iostat()
TestParse_iostat(String name)

Method Summary

Methods

Modifier and Type	Method and Description
void	test_iostat_collector_correct()
protected void	test_iostat_collector(String output)
void	test_parsing_iostat_cpu_only() Test parsing of a CPU only report from iostat -d -C -n 0 -w 1 | cat
void	test_parsing_iostat_devices_plus_cpu() Test parsing of the output of iostat -d -C -n 999 -w 60

Methods inherited from class com.bigdata.counters.osx.AbstractParserTestCase

assertField

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

TestParse_iostat

public TestParse_iostat()

TestParse_iostat

public TestParse_iostat(String name)

Method Detail

test_parsing_iostat_cpu_only

public void test_parsing_iostat_cpu_only()

Test parsing of a CPU only report from iostat -d -C -n 0 -w 1 | cat

test_parsing_iostat_devices_plus_cpu

public void test_parsing_iostat_devices_plus_cpu()

Test parsing of the output of iostat -d -C -n 999 -w 60

           disk0           disk1           disk2           disk3           disk4       cpu
     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s     KB/t tps  MB/s  us sy id
   197.14  26  5.10    79.10   1  0.07     3.74   0  0.00    41.31   0  0.00    13.03   0  0.00  31  6 63
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  53  4 43
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  56  8 37
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  54  9 37
     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00     0.00   0  0.00  57  8 35
 

Note that the #of device columns will vary for this format. The headers will also periodically repeat. The #of columns for the report can presumably vary as devices are connected and disconnected!

test_iostat_collector_correct

public void test_iostat_collector_correct()
                                   throws IOException,
                                          InterruptedException

Throws:

IOException

InterruptedException

test_iostat_collector

protected void test_iostat_collector(String output)
                              throws IOException,
                                     InterruptedException

Throws:

IOException

InterruptedException