1 *java.lang.management.OperatingSystemMXBean* *OperatingSystemMXBean* The managem
3 public interface interface OperatingSystemMXBean
6 |java.lang.management.OperatingSystemMXBean_Description|
7 |java.lang.management.OperatingSystemMXBean_Fields|
8 |java.lang.management.OperatingSystemMXBean_Constructors|
9 |java.lang.management.OperatingSystemMXBean_Methods|
11 ================================================================================
13 *java.lang.management.OperatingSystemMXBean_Methods*
14 |java.lang.management.OperatingSystemMXBean.getArch()|Returns the operating sys
15 |java.lang.management.OperatingSystemMXBean.getAvailableProcessors()|Returns th
16 |java.lang.management.OperatingSystemMXBean.getName()|Returns the operating sys
17 |java.lang.management.OperatingSystemMXBean.getSystemLoadAverage()|Returns the
18 |java.lang.management.OperatingSystemMXBean.getVersion()|Returns the operating
20 *java.lang.management.OperatingSystemMXBean_Description*
22 The management interface for the operating system on which the Java virtual
25 A Java virtual machine has a single instance of the implementation class of
26 this interface. This instance implementing this interface is an MXBean that can
27 be obtained by calling the (|java.lang.management.ManagementFactory|) method or
29 <tt>MBeanServer</tt>(|java.lang.management.ManagementFactory|) method.
31 The ObjectName for uniquely identifying the MXBean for the operating system
32 within an MBeanServer is:
33 <tt>java.lang:type=OperatingSystem</tt>(|java.lang.management.ManagementFactory|)
36 This interface defines several convenient methods for accessing system
37 properties about the operating system on which the Java virtual machine is
42 *java.lang.management.OperatingSystemMXBean.getArch()*
44 public |java.lang.String| getArch()
46 Returns the operating system architecture. This method is equivalent to
47 System.getProperty("os.arch").
51 Returns: the operating system architecture.
53 *java.lang.management.OperatingSystemMXBean.getAvailableProcessors()*
55 public int getAvailableProcessors()
57 Returns the number of processors available to the Java virtual machine. This
58 method is equivalent to the (|java.lang.Runtime|) method. This value may change
59 during a particular invocation of the virtual machine.
63 Returns: the number of processors available to the virtual machine; never smaller than
66 *java.lang.management.OperatingSystemMXBean.getName()*
68 public |java.lang.String| getName()
70 Returns the operating system name. This method is equivalent to
71 System.getProperty("os.name").
75 Returns: the operating system name.
77 *java.lang.management.OperatingSystemMXBean.getSystemLoadAverage()*
79 public double getSystemLoadAverage()
81 Returns the system load average for the last minute. The system load average is
82 the sum of the number of runnable entities queued to the available
83 processors(|java.lang.management.OperatingSystemMXBean|) and the number of
84 runnable entities running on the available processors averaged over a period of
85 time. The way in which the load average is calculated is operating system
86 specific but is typically a damped time-dependent average.
88 If the load average is not available, a negative value is returned.
90 This method is designed to provide a hint about the system load and may be
91 queried frequently. The load average may be unavailable on some platform where
92 it is expensive to implement this method.
96 Returns: the system load average; or a negative value if not available.
98 *java.lang.management.OperatingSystemMXBean.getVersion()*
100 public |java.lang.String| getVersion()
102 Returns the operating system version. This method is equivalent to
103 System.getProperty("os.version").
107 Returns: the operating system version.