Package oshi.hardware.platform.linux

Class LinuxGlobalMemory

java.lang.Object

oshi.hardware.common.AbstractGlobalMemory

oshi.hardware.platform.linux.LinuxGlobalMemory

All Implemented Interfaces:

java.io.Serializable, GlobalMemory

public class LinuxGlobalMemory
extends AbstractGlobalMemory

Memory obtained by /proc/meminfo and sysinfo.totalram

Author:

alessandro[at]perucchi[dot]org, widdis[at]gmail[dot]com

See Also:

Serialized Form

Field Summary

Fields inherited from class oshi.hardware.common.AbstractGlobalMemory

memAvailable, memTotal, pageSize, swapPagesIn, swapPagesOut, swapTotal, swapUsed

Constructor Summary

Constructors

Constructor	Description
LinuxGlobalMemory()

Method Summary

Modifier and Type	Method	Description
protected void	updateMeminfo()	Updates instance variables from reading /proc/meminfo no more frequently than every 100ms.
protected void	updateSwap()	Updates virtual memory instance variables.

Methods inherited from class oshi.hardware.common.AbstractGlobalMemory

getAvailable, getPageSize, getSwapPagesIn, getSwapPagesOut, getSwapTotal, getSwapUsed, getTotal

Methods inherited from class java.lang.Object

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

Constructor Detail

LinuxGlobalMemory

public LinuxGlobalMemory()

Method Detail

updateMeminfo

protected void updateMeminfo()

Updates instance variables from reading /proc/meminfo no more frequently than every 100ms. 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=34e431b0ae398fc54ea69ff85ec700722c9da773 Internally, reading /proc/meminfo is faster than sysinfo because it only spends time populating the memory components of the sysinfo structure.

Specified by:

updateMeminfo in class AbstractGlobalMemory

updateSwap

protected void updateSwap()

Updates virtual memory instance variables.

Specified by:

updateSwap in class AbstractGlobalMemory