public class

OperatingSystemImpl

extends Object
implements OperatingSystemMXBean
java.lang.Object
   ↳ sun.management.OperatingSystemImpl

Class Overview

Implementation class for the operating system. Standard and committed hotspot-specific metrics if any. ManagementFactory.getOperatingSystemMXBean() returns an instance of this class.

Summary

Protected Constructors
OperatingSystemImpl(VMManagement vm)
Constructor of OperatingSystemImpl class.
Public Methods
String getArch()
Returns the operating system architecture.
int getAvailableProcessors()
Returns the number of processors available to the Java virtual machine.
String getName()
Returns the operating system name.
double getSystemLoadAverage()
Returns the system load average for the last minute.
String getVersion()
Returns the operating system version.
[Expand]
Inherited Methods
From class java.lang.Object
From interface java.lang.management.OperatingSystemMXBean

Protected Constructors

protected OperatingSystemImpl (VMManagement vm)

Constructor of OperatingSystemImpl class.

Public Methods

public String getArch ()

Returns the operating system architecture. This method is equivalent to System.getProperty("os.arch").

Returns
  • the operating system architecture.

public int getAvailableProcessors ()

Returns the number of processors available to the Java virtual machine. This method is equivalent to the availableProcessors() method.

This value may change during a particular invocation of the virtual machine.

Returns
  • the number of processors available to the virtual machine; never smaller than one.

public String getName ()

Returns the operating system name. This method is equivalent to System.getProperty("os.name").

Returns
  • the operating system name.

public double getSystemLoadAverage ()

Returns the system load average for the last minute. The system load average is the sum of the number of runnable entities queued to the available processors and the number of runnable entities running on the available processors averaged over a period of time. The way in which the load average is calculated is operating system specific but is typically a damped time-dependent average.

If the load average is not available, a negative value is returned.

This method is designed to provide a hint about the system load and may be queried frequently. The load average may be unavailable on some platform where it is expensive to implement this method.

Returns
  • the system load average; or a negative value if not available.

public String getVersion ()

Returns the operating system version. This method is equivalent to System.getProperty("os.version").

Returns
  • the operating system version.