如何计算私有工作集(内存)? [英] How to calculate private working set (memory)?

问题描述

如何使用 C# 计算内存的私有工作集?我有兴趣生成与 taskmgr.exe 大致相同的数字.

How do I calculate the private working set of memory using C#? I'm interested in producing roughly the same figures as taskmgr.exe.

我正在使用 Process 命名空间并使用诸如 WorkingSet64 和 PrivateMemorySize64 之类的方法/数据，但这些数字相差 100MB 或更多有时.

I'm using the Process namespace and using methods/data like WorkingSet64 and PrivateMemorySize64, but these figures are off by 100MB or more at times.

推荐答案

这是一个高度可变的数字，您无法计算它.Windows 内存管理器不断地在 RAM 中进出页面.TaskMgr.exe 从性能计数器获取它.您可以像这样获得相同的数字:

This is a highly variable number, you cannot calculate it. The Windows memory manager constantly swaps pages in and out of RAM. TaskMgr.exe gets it from a performance counter. You can get the same number like this:

using System;
using System.Diagnostics;

class Program {
    static void Main(string[] args) {
        string prcName = Process.GetCurrentProcess().ProcessName;
        var counter = new PerformanceCounter("Process", "Working Set - Private", prcName);
        Console.WriteLine("{0}K", counter.RawValue / 1024);
        Console.ReadLine();
    }
}

请注意，这个数字实际上并没有多大意义，当其他进程启动并争夺 RAM 时，它会下降.

Do beware that the number really doesn't mean much, it will drop when other processes get started and compete for RAM.

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