“VM 大小"是什么意思?在 Windows 任务管理器中是什么意思? [英] What does "VM Size" mean in the Windows Task Manager?

问题描述

从计算机大小的角度来看，虚拟内存是

Virtual memory from a computer size perspective is

[使程序的一种方式] 思考它有大范围的连续地址；但实际上它的部分目前使用的是分散的RAM 周围，非活动部分是保存在磁盘文件中.(维基百科)

[a way to make the program] think it has a large range of contiguous addresses; but in reality the parts it is currently using are scattered around RAM, and the inactive parts are saved in a disk file. (Wikipedia)

我会将 Windows 任务管理器中的 VM 大小解释为总可寻址虚拟内存空间或进程当前在虚拟内存空间中使用的内存量.

I would interpret VM Size in the Windows Task manager as either the total addressable virtual memory space or the amount of memory the process is currently using in the virtual memory space.

但在任务管理器中，WM 大小在许多情况下小于内存使用量，这应该是进程正在使用的 RAM 量.所以我猜 WM Size 意味着别的什么?

But in the Task Manager the WM Size is in many cases less than Mem Usage, which should be amount of RAM the process is using. Therefor I guess that WM Size means something else?

推荐答案

这是这个进程分配的所有私有(非共享)字节的总和，无论当前是否在物理内存中.

It's the total of all private (not shared) bytes allocated by this process, whether currently in physical memory or not.

另请参阅Windows 内存管理入门指南 或 提交费用维基百科文章

对于像这样查看进程状态的开发人员，我建议安装 SysInternals Process Explorer 并使用它代替默认的任务管理器.这个值在里面叫做Private Bytes".

For a developer watching process state like this I would recommend to install SysInternals Process Explorer and to use it instead of the default Task Manager. This value is called "Private Bytes" in it.

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