org.openspaces.admin.internal.vm

Class DefaultVirtualMachineStatistics

java.lang.Object

org.openspaces.admin.internal.vm.DefaultVirtualMachineStatistics

All Implemented Interfaces:

VirtualMachineStatistics

public class DefaultVirtualMachineStatistics
extends Object
implements VirtualMachineStatistics

Author:

kimchy

Constructor Summary

Constructors

Constructor and Description
DefaultVirtualMachineStatistics()
DefaultVirtualMachineStatistics(JVMStatistics stats, VirtualMachineStatistics previousStats, VirtualMachineDetails details, int historySize, long timeDelta)

Method Summary

Modifier and Type	Method and Description
long	getAdminTimestamp() Returns a timestamp that is in sync with where the admin API is running.
double	getCpuPerc() Returns the cpu percentage this virtual machine is using.
double	getCpuPercAverage(long requestedTotalTime, TimeUnit timeUnit) Calculates the average number of cpu cores used by the java virtual machine over the specified period of time.
String	getCpuPercFormatted()
VirtualMachineDetails	getDetails() Returns the details of the virtual machine.
long	getGcCollectionCount() Returns the total number of times GC was invoked for this virtual machine
double	getGcCollectionPerc() The percentage of the gc collection time between the current sampled statistics and the previous one.
long	getGcCollectionTime() Returns the total time in milliseconds that this virtual machine spent doing GC
long	getMemoryHeapCommittedInBytes()
double	getMemoryHeapCommittedInGB()
double	getMemoryHeapCommittedInMB()
double	getMemoryHeapCommittedUsedPerc() Returns the memory heap percentage from used to committed.
long	getMemoryHeapUsedInBytes()
double	getMemoryHeapUsedInGB()
double	getMemoryHeapUsedInMB()
double	getMemoryHeapUsedPerc() Returns the memory heap percentage from used to the max.
long	getMemoryNonHeapCommittedInBytes()
double	getMemoryNonHeapCommittedInGB()
double	getMemoryNonHeapCommittedInMB()
double	getMemoryNonHeapCommittedUsedPerc() Returns the memory non heap percentage from used to committed.
long	getMemoryNonHeapUsedInBytes()
double	getMemoryNonHeapUsedInGB()
double	getMemoryNonHeapUsedInMB()
double	getMemoryNonHeapUsedPerc() Returns the memory non heap percentage from used to the max.
int	getPeakThreadCount() Returns the maximum number of of threads that were running in the VM since it has started
VirtualMachineStatistics	getPrevious() Returns the previous statistics sampled.
long	getPreviousTimestamp() Returns the previous timestamp of the statistics sampled, -1 if this is the first one.
int	getThreadCount() Returns the number of currently running threads in this virtual machine
List<VirtualMachineStatistics>	getTimeline() Returns the timeline (from newest to oldest) history statistics, including this one.
long	getTimestamp() Return the timestamp when the statistics were taken.
long	getUptime()
boolean	isNA() Returns true if this is not valid statistics.
void	setPreviousStats(VirtualMachineStatistics previousStats)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultVirtualMachineStatistics

public DefaultVirtualMachineStatistics()

DefaultVirtualMachineStatistics

public DefaultVirtualMachineStatistics(JVMStatistics stats,
                                       VirtualMachineStatistics previousStats,
                                       VirtualMachineDetails details,
                                       int historySize,
                                       long timeDelta)

Method Detail

isNA

public boolean isNA()

Description copied from interface: VirtualMachineStatistics

Returns true if this is not valid statistics.

Specified by:

isNA in interface VirtualMachineStatistics

getTimestamp

public long getTimestamp()

Description copied from interface: VirtualMachineStatistics

Return the timestamp when the statistics were taken.

Specified by:

getTimestamp in interface VirtualMachineStatistics

getAdminTimestamp

public long getAdminTimestamp()

Description copied from interface: VirtualMachineStatistics

Returns a timestamp that is in sync with where the admin API is running. Can return -1 if the clocks have are not sync yet.

Specified by:

getAdminTimestamp in interface VirtualMachineStatistics

getDetails

public VirtualMachineDetails getDetails()

Description copied from interface: VirtualMachineStatistics

Returns the details of the virtual machine.

Specified by:

getDetails in interface VirtualMachineStatistics

getTimeline

public List<VirtualMachineStatistics> getTimeline()

Description copied from interface: VirtualMachineStatistics

Returns the timeline (from newest to oldest) history statistics, including this one.

Specified by:

getTimeline in interface VirtualMachineStatistics

getPrevious

public VirtualMachineStatistics getPrevious()

Description copied from interface: VirtualMachineStatistics

Returns the previous statistics sampled. null if this is the first one or bounded by the history size.

Specified by:

getPrevious in interface VirtualMachineStatistics

setPreviousStats

public void setPreviousStats(VirtualMachineStatistics previousStats)

getPreviousTimestamp

public long getPreviousTimestamp()

Description copied from interface: VirtualMachineStatistics

Returns the previous timestamp of the statistics sampled, -1 if this is the first one.

Specified by:

getPreviousTimestamp in interface VirtualMachineStatistics

getUptime

public long getUptime()

Specified by:

getUptime in interface VirtualMachineStatistics

getMemoryHeapCommittedInBytes

public long getMemoryHeapCommittedInBytes()

Specified by:

getMemoryHeapCommittedInBytes in interface VirtualMachineStatistics

getMemoryHeapCommittedInMB

public double getMemoryHeapCommittedInMB()

Specified by:

getMemoryHeapCommittedInMB in interface VirtualMachineStatistics

getMemoryHeapCommittedInGB

public double getMemoryHeapCommittedInGB()

Specified by:

getMemoryHeapCommittedInGB in interface VirtualMachineStatistics

getMemoryHeapUsedInBytes

public long getMemoryHeapUsedInBytes()

Specified by:

getMemoryHeapUsedInBytes in interface VirtualMachineStatistics

getMemoryHeapUsedInMB

public double getMemoryHeapUsedInMB()

Specified by:

getMemoryHeapUsedInMB in interface VirtualMachineStatistics

getMemoryHeapUsedInGB

public double getMemoryHeapUsedInGB()

Specified by:

getMemoryHeapUsedInGB in interface VirtualMachineStatistics

getMemoryHeapUsedPerc

public double getMemoryHeapUsedPerc()

Description copied from interface: VirtualMachineStatistics

Returns the memory heap percentage from used to the max.

Specified by:

getMemoryHeapUsedPerc in interface VirtualMachineStatistics

getMemoryHeapCommittedUsedPerc

public double getMemoryHeapCommittedUsedPerc()

Description copied from interface: VirtualMachineStatistics

Returns the memory heap percentage from used to committed.

Specified by:

getMemoryHeapCommittedUsedPerc in interface VirtualMachineStatistics

getMemoryNonHeapCommittedInBytes

public long getMemoryNonHeapCommittedInBytes()

Specified by:

getMemoryNonHeapCommittedInBytes in interface VirtualMachineStatistics

getMemoryNonHeapCommittedInMB

public double getMemoryNonHeapCommittedInMB()

Specified by:

getMemoryNonHeapCommittedInMB in interface VirtualMachineStatistics

getMemoryNonHeapCommittedInGB

public double getMemoryNonHeapCommittedInGB()

Specified by:

getMemoryNonHeapCommittedInGB in interface VirtualMachineStatistics

getMemoryNonHeapUsedInBytes

public long getMemoryNonHeapUsedInBytes()

Specified by:

getMemoryNonHeapUsedInBytes in interface VirtualMachineStatistics

getMemoryNonHeapUsedInMB

public double getMemoryNonHeapUsedInMB()

Specified by:

getMemoryNonHeapUsedInMB in interface VirtualMachineStatistics

getMemoryNonHeapUsedInGB

public double getMemoryNonHeapUsedInGB()

Specified by:

getMemoryNonHeapUsedInGB in interface VirtualMachineStatistics

getMemoryNonHeapUsedPerc

public double getMemoryNonHeapUsedPerc()

Description copied from interface: VirtualMachineStatistics

Returns the memory non heap percentage from used to the max.

Specified by:

getMemoryNonHeapUsedPerc in interface VirtualMachineStatistics

getMemoryNonHeapCommittedUsedPerc

public double getMemoryNonHeapCommittedUsedPerc()

Description copied from interface: VirtualMachineStatistics

Returns the memory non heap percentage from used to committed.

Specified by:

getMemoryNonHeapCommittedUsedPerc in interface VirtualMachineStatistics

getThreadCount

public int getThreadCount()

Description copied from interface: VirtualMachineStatistics

Returns the number of currently running threads in this virtual machine

Specified by:

getThreadCount in interface VirtualMachineStatistics

getPeakThreadCount

public int getPeakThreadCount()

Description copied from interface: VirtualMachineStatistics

Returns the maximum number of of threads that were running in the VM since it has started

Specified by:

getPeakThreadCount in interface VirtualMachineStatistics

getGcCollectionCount

public long getGcCollectionCount()

Description copied from interface: VirtualMachineStatistics

Returns the total number of times GC was invoked for this virtual machine

Specified by:

getGcCollectionCount in interface VirtualMachineStatistics

getGcCollectionTime

public long getGcCollectionTime()

Description copied from interface: VirtualMachineStatistics

Returns the total time in milliseconds that this virtual machine spent doing GC

Specified by:

getGcCollectionTime in interface VirtualMachineStatistics

getGcCollectionPerc

public double getGcCollectionPerc()

Description copied from interface: VirtualMachineStatistics

The percentage of the gc collection time between the current sampled statistics and the previous one. If there is no previous one, will return -1.

Specified by:

getGcCollectionPerc in interface VirtualMachineStatistics

getCpuPerc

public double getCpuPerc()

Description copied from interface: VirtualMachineStatistics

Returns the cpu percentage this virtual machine is using.

Specified by:

getCpuPerc in interface VirtualMachineStatistics

getCpuPercAverage

public double getCpuPercAverage(long requestedTotalTime,
                                TimeUnit timeUnit)

Description copied from interface: VirtualMachineStatistics

Calculates the average number of cpu cores used by the java virtual machine over the specified period of time. If not enough statistics have been accumulated, -1 is returned. In that case either call this method again after enough time has elapsed, or increase history size StatisticsMonitor.setStatisticsHistorySize(int) or increase statistics interval StatisticsMonitor.setStatisticsInterval(long, TimeUnit).

Specified by:

getCpuPercAverage in interface VirtualMachineStatistics

Parameters:

requestedTotalTime - The period of time to average the cpu percentage starting with this statistics

timeUnit - Time units for totalTime

Returns:

A value between 0 and number of CPU cores representing the average number of CPU cores used, or -1 if not enough statistics have been accumulated.

getCpuPercFormatted

public String getCpuPercFormatted()

Specified by:

getCpuPercFormatted in interface VirtualMachineStatistics