Package oshi.hardware.platform.windows

Class WindowsVirtualMemory

java.lang.Object
oshi.hardware.common.AbstractVirtualMemory
oshi.hardware.platform.windows.WindowsVirtualMemory
All Implemented Interfaces:
VirtualMemory
public class WindowsVirtualMemory
extends AbstractVirtualMemory
Memory obtained from WMI

  • Constructor Summary

    Constructors 
    Constructor Description
    WindowsVirtualMemory​(long pageSize)
    Constructor for WindowsVirtualMemory.

  • Method Summary

    Modifier and Type Method Description
    long getSwapPagesIn()
    Number of pages read from paging/swap file(s) to resolve hard page faults.
    long getSwapPagesOut()
    Number of pages written to paging/swap file(s) to free up space in physical memory.
    long getSwapTotal()
    The current size of the paging/swap file(s), in bytes.
    long getSwapUsed()
    The current memory committed to the paging/swap file(s), in bytes

    Methods inherited from class oshi.hardware.common.AbstractVirtualMemory

    toString

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • WindowsVirtualMemory

      public WindowsVirtualMemory​(long pageSize)

      Constructor for WindowsVirtualMemory.

      Parameters:
      pageSize - The size in bites of memory pages

  • Method Details

    • getSwapUsed

      public long getSwapUsed()
      Description copied from interface: VirtualMemory
      The current memory committed to the paging/swap file(s), in bytes
      Returns:
      Swap used in bytes

    • getSwapTotal

      public long getSwapTotal()
      Description copied from interface: VirtualMemory
      The current size of the paging/swap file(s), in bytes. If the paging/swap file can be extended, this is a soft limit.
      Returns:
      Total swap in bytes.

    • getSwapPagesIn

      public long getSwapPagesIn()
      Description copied from interface: VirtualMemory
      Number of pages read from paging/swap file(s) to resolve hard page faults. (Hard page faults occur when a process requires code or data that is not in its working set or elsewhere in physical memory, and must be retrieved from disk.) This property was designed as a primary indicator of the kinds of faults that cause system-wide delays. It includes pages retrieved to satisfy faults in the file system cache (usually requested by applications) and in non-cached mapped memory files.
      Returns:
      Pages swapped in

    • getSwapPagesOut

      public long getSwapPagesOut()
      Description copied from interface: VirtualMemory
      Number of pages written to paging/swap file(s) to free up space in physical memory. Pages are written back to disk only if they are changed in physical memory, so they are likely to hold data, not code. A high rate of pages output might indicate a memory shortage. The operating system writes more pages back to disk to free up space when physical memory is in short supply.
      Returns:
      Pages swapped out