如何获取C#(托管代码)中*THREAD*的CPU使用率和/或RAM使用率?

如上所述,内存使用无法回答,因为这是整个进程的一个属性,但CPU使用:

Process p = Process.GetCurrentProcess(); // getting current running process of the app
foreach (ProcessThread pt in p.Threads)
{
    // use pt.Id / pt.TotalProcessorTime / pt.UserProcessorTime / pt.PrivilegedProcessorTime
}

您无法获取每个线程的内存使用情况,因为内存在进程中的所有线程之间共享。操作系统如何知道您是否在一个线程中分配了内存,并在另一个线程中将其使用。这意味着什么?

这里有一个例子,可以做你想做的事 http://www.codeproject.com/KB/system/processescpuusage.aspx

这是一个简单的程序,它启动5个消耗不同CPU量的线程,然后匹配哪个托管线程消耗了多少CPU。

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;

class Program
{
[DllImport("Kernel32", EntryPoint = "GetCurrentThreadId", ExactSpelling = true)]
public static extern Int32 GetCurrentWin32ThreadId();

static void Main(string[] args)
{
    Dictionary<int, Thread> threads = new Dictionary<int, Thread>();

    // Launch the threads
    for (int i = 0; i < 5; i++)
    {
        Thread cpuThread = new Thread((start) =>
        {
            lock (threads)
            {
                threads.Add(GetCurrentWin32ThreadId(), Thread.CurrentThread);
            }

            ConsumeCPU(20 * (int)start);
        });
        cpuThread.Name = "T" + i;
        cpuThread.Start(i);
    }

    // Every second wake up and see how much CPU each thread is using.
    Thread monitoringThread = new Thread(() =>
        {
            Stopwatch watch = new Stopwatch();
            watch.Start();

            while (true)
            {
                Thread.Sleep(1000);
                Console.Write("\r");

                double totalTime = ((double)watch.ElapsedMilliseconds);
                if (totalTime > 0)
                {
                    Process p = Process.GetCurrentProcess();
                    foreach (ProcessThread pt in p.Threads)
                    {
                        Thread managedThread;
                        if (threads.TryGetValue(pt.Id, out managedThread))
                        {
                            double percent = (pt.TotalProcessorTime.TotalMilliseconds / totalTime);
                            Console.Write("{0}-{1:0.00} ", managedThread.Name, percent);
                        }
                    }
                }
            }
        });
    monitoringThread.Start();
}


// Helper function that generates a percentage of CPU usage
public static void ConsumeCPU(int percentage)
{
    Stopwatch watch = new Stopwatch();
    watch.Start();
    while (true)
    {
        if (watch.ElapsedMilliseconds > percentage)
        {
            Thread.Sleep(100 - percentage);
            watch.Reset();
            watch.Start();
        }
    }
}
}

请注意,CLR可能会更改托管线程正在执行的本机线程。然而,在实践中,我不确定这种情况实际发生的频率。