Interface UnixOperatingSystemMXBean

All Superinterfaces:

OperatingSystemMXBean, OperatingSystemMXBean, PlatformManagedObject

public interface UnixOperatingSystemMXBean
extends OperatingSystemMXBean

Platform-specific management interface for the Unix operating system on which the Java virtual machine is running.

Since:

1.5

Method Summary

Modifier and Type	Method	Description
long	getMaxFileDescriptorCount()	Returns the maximum number of file descriptors.
long	getOpenFileDescriptorCount()	Returns the number of open file descriptors.

Methods declared in interface OperatingSystemMXBean

getCommittedVirtualMemorySize, getCpuLoad, getFreeMemorySize, getFreePhysicalMemorySize, getFreeSwapSpaceSize, getProcessCpuLoad, getProcessCpuTime, getSystemCpuLoad, getTotalMemorySize, getTotalPhysicalMemorySize, getTotalSwapSpaceSize

Modifier and Type	Method	Description
long	getCommittedVirtualMemorySize()	Returns the amount of virtual memory that is guaranteed to be available to the running process in bytes, or -1 if this operation is not supported.
double	getCpuLoad()	Returns the "recent CPU usage" for the operating environment.
long	getFreeMemorySize()	Returns the amount of free memory in bytes.
default long	getFreePhysicalMemorySize()	Deprecated. Use OperatingSystemMXBean.getFreeMemorySize() instead of this historically named method.
long	getFreeSwapSpaceSize()	Returns the amount of free swap space in bytes.
double	getProcessCpuLoad()	Returns the "recent CPU usage" for the Java Virtual Machine process.
long	getProcessCpuTime()	Returns the CPU time used by the process on which the Java virtual machine is running in nanoseconds.
default double	getSystemCpuLoad()	Deprecated. Use OperatingSystemMXBean.getCpuLoad() instead of this historically named method.
long	getTotalMemorySize()	Returns the total amount of memory in bytes.
default long	getTotalPhysicalMemorySize()	Deprecated. Use OperatingSystemMXBean.getTotalMemorySize() instead of this historically named method.
long	getTotalSwapSpaceSize()	Returns the total amount of swap space in bytes.

Methods declared in interface OperatingSystemMXBean

getArch, getAvailableProcessors, getName, getSystemLoadAverage, getVersion

Modifier and Type	Method	Description
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.

Methods declared in interface PlatformManagedObject

getObjectName

Modifier and Type	Method	Description
ObjectName	getObjectName()	Returns an ObjectName instance representing the object name of this platform managed object.

Method Details

getOpenFileDescriptorCount

long getOpenFileDescriptorCount()

Returns the number of open file descriptors.

Returns:

the number of open file descriptors.

getMaxFileDescriptorCount

long getMaxFileDescriptorCount()

Returns the maximum number of file descriptors.

Returns:

the maximum number of file descriptors.