在JDK1.7中，您可以通過com.sun.management.OperatingSystemMXBean..這與java.lang.management.OperatingSystemMXBean.

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.

long? ? getFreePhysicalMemorySize()

Returns the amount of free physical memory in bytes.

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.

double? getSystemCpuLoad()

Returns the "recent cpu usage" for the whole system.

long? ? getTotalPhysicalMemorySize()

Returns the total amount of physical memory in bytes.

long? ? getTotalSwapSpaceSize()

Returns the total amount of swap space in bytes.

總結

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