Package oshi.hardware.platform.linux
Class LinuxGlobalMemory
java.lang.Object
oshi.hardware.common.AbstractGlobalMemory
oshi.hardware.platform.linux.LinuxGlobalMemory
- All Implemented Interfaces:
GlobalMemory
Memory obtained by /proc/meminfo and sysinfo.totalram
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate VirtualMemory
long
The amount of physical memory currently available, in bytes.long
The number of bytes in a memory pagelong
getTotal()
The amount of actual physical memory, in bytes.Virtual memory, such as a swap file.Updates instance variables from reading /proc/meminfo.Methods inherited from class oshi.hardware.common.AbstractGlobalMemory
getPhysicalMemory, toString
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Field Details
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PAGE_SIZE
private static final long PAGE_SIZE -
availTotal
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vm
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Constructor Details
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LinuxGlobalMemory
public LinuxGlobalMemory()
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Method Details
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getAvailable
public long getAvailable()Description copied from interface:GlobalMemory
The amount of physical memory currently available, in bytes.- Returns:
- Available number of bytes.
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getTotal
public long getTotal()Description copied from interface:GlobalMemory
The amount of actual physical memory, in bytes.- Returns:
- Total number of bytes.
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getPageSize
public long getPageSize()Description copied from interface:GlobalMemory
The number of bytes in a memory page- Returns:
- Page size in bytes.
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getVirtualMemory
Description copied from interface:GlobalMemory
Virtual memory, such as a swap file.- Returns:
- A VirtualMemory object.
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readMemInfo
Updates instance variables from reading /proc/meminfo. While most of the information is available in the sysinfo structure, the most accurate calculation of MemAvailable is only available from reading this pseudo-file. The maintainers of the Linux Kernel have indicated this location will be kept up to date if the calculation changes: see https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/? id=34e431b0ae398fc54ea69ff85ec700722c9da773Internally, reading /proc/meminfo is faster than sysinfo because it only spends time populating the memory components of the sysinfo structure.
- Returns:
- A pair containing available and total memory in bytes
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createVirtualMemory
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