com.palantir.opensource.sysmon.linux
Class LinuxIOStat

java.lang.Object
  com.palantir.opensource.sysmon.linux.LinuxIOStat

All Implemented Interfaces:

LinuxIOStatMBean

public class LinuxIOStat
extends Object
implements LinuxIOStatMBean

Data container and JMX MBean implementation for I/O statistics used by LinuxIOStatJMXWrapper.

iostat output looks like this:

 Linux 2.6.26.5-28.fc8 (nosuchhost.palantir.com)      11/12/2008


 Device:         rrqm/s   wrqm/s     r/s     w/s    rMB/s    wMB/s avgrq-sz avgqu-sz   await  svctm  %util
 sda               0.14     0.68    0.41    0.72     0.01     0.03    62.52     0.06   55.69   3.15   0.35
 sda1              0.00     0.00    0.00    0.00     0.00     0.00    21.42     0.00   13.80  10.32   0.00
 sda2              0.04     0.54    0.30    0.54     0.00     0.00    19.19     0.04   43.17   3.10   0.26
 sda3              0.00     0.00    0.00    0.00     0.00     0.00    30.38     0.00   40.20  34.95   0.00
 sda4              0.00     0.00    0.00    0.00     0.00     0.00     2.00     0.00   13.33  13.33   0.00
 sda5              0.10     0.14    0.10    0.18     0.00     0.02   189.29     0.03   92.34   3.94   0.11
 

See Also:

iostat(1) for more on the meaning of each measurement

Constructor Summary

LinuxIOStat(String objectName)

Method Summary

boolean	equals(Object obj)
float	getAverageQueueLengthInSectors()
float	getAverageRequestSizeInSectors()
float	getAverageServiceTimeInMillis()
float	getAverageWaitTimeInMillis()
float	getBandwidthUtilizationPercentage()
String	getDevice()
float	getKilobytesReadPerSecond()
float	getKilobytesWrittenPerSecond()
float	getMergedReadRequestsPerSecond()
float	getMergedWriteRequestsPerSecond()
float	getReadRequestsPerSecond()
int	getSamplePeriodInSeconds()
float	getWriteRequestsPerSecond()
int	hashCode()
void	takeValues(LinuxIOStatMBean dataBean)

Methods inherited from class java.lang.Object

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

Constructor Detail

LinuxIOStat

public LinuxIOStat(String objectName)

Method Detail

takeValues

public void takeValues(LinuxIOStatMBean dataBean)
                throws LinuxMonitoringException

Throws:

LinuxMonitoringException

getDevice

public final String getDevice()

Specified by:

getDevice in interface LinuxIOStatMBean

getSamplePeriodInSeconds

public final int getSamplePeriodInSeconds()

Specified by:

getSamplePeriodInSeconds in interface LinuxIOStatMBean

getMergedReadRequestsPerSecond

public final float getMergedReadRequestsPerSecond()

Specified by:

getMergedReadRequestsPerSecond in interface LinuxIOStatMBean

getMergedWriteRequestsPerSecond

public final float getMergedWriteRequestsPerSecond()

Specified by:

getMergedWriteRequestsPerSecond in interface LinuxIOStatMBean

getReadRequestsPerSecond

public final float getReadRequestsPerSecond()

Specified by:

getReadRequestsPerSecond in interface LinuxIOStatMBean

getWriteRequestsPerSecond

public final float getWriteRequestsPerSecond()

Specified by:

getWriteRequestsPerSecond in interface LinuxIOStatMBean

getKilobytesReadPerSecond

public final float getKilobytesReadPerSecond()

Specified by:

getKilobytesReadPerSecond in interface LinuxIOStatMBean

getKilobytesWrittenPerSecond

public final float getKilobytesWrittenPerSecond()

Specified by:

getKilobytesWrittenPerSecond in interface LinuxIOStatMBean

getAverageRequestSizeInSectors

public final float getAverageRequestSizeInSectors()

Specified by:

getAverageRequestSizeInSectors in interface LinuxIOStatMBean

getAverageQueueLengthInSectors

public final float getAverageQueueLengthInSectors()

Specified by:

getAverageQueueLengthInSectors in interface LinuxIOStatMBean

getAverageWaitTimeInMillis

public final float getAverageWaitTimeInMillis()

Specified by:

getAverageWaitTimeInMillis in interface LinuxIOStatMBean

getAverageServiceTimeInMillis

public final float getAverageServiceTimeInMillis()

Specified by:

getAverageServiceTimeInMillis in interface LinuxIOStatMBean

getBandwidthUtilizationPercentage

public final float getBandwidthUtilizationPercentage()

Specified by:

getBandwidthUtilizationPercentage in interface LinuxIOStatMBean

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object