如何在c#中测量线程的时间？

Question

我想测量一下C#例程所需的时间.因为还有很多其他线程我只想计算这一个线程的时间.在Java中我可以使用getCurrentThreadCpuTime.

我该怎么做？

Answer 1

您可以使用秒表来实现这一点。这将是实现这一目标的最简单方法。

    public void Worker()
    {
        var stopwatch = new Stopwatch();

        stopwatch.Start();

        ///Do your wwork here

        var timeElapsed = stopwatch.Elapsed;
    }

更新

我把你的问题问错了，那这个呢？如果使用线程睡眠则不起作用。很抱歉，如果这仍然不是您想要的。

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Diagnostics;
    using System.Threading;
    using System.Runtime.InteropServices;
    using System.Collections.Concurrent;

    namespace ConsoleApplication2
    {
        class Program
        {
            static ConcurrentDictionary<int, ProcessThread> threadIdsMapping = new ConcurrentDictionary<int, ProcessThread>();


            static void Main(string[] args)
            {
                Thread oThread = new Thread(
                    delegate()
                    {
                        threadIdsMapping.GetOrAdd(Thread.CurrentThread.ManagedThreadId, GetProcessThreadFromWin32ThreadId(null));

                        long counter = 1;

                        while (counter < 1000000000)
                        {
                            counter++;
                        }
                    });

                oThread.Start();
                oThread.Join();

                Console.WriteLine(threadIdsMapping[oThread.ManagedThreadId].TotalProcessorTime);
                Console.WriteLine(threadIdsMapping[oThread.ManagedThreadId].UserProcessorTime);
                Console.WriteLine(DateTime.Now - threadIdsMapping[oThread.ManagedThreadId].StartTime);

                Console.ReadKey();
            }

            public static ProcessThread GetProcessThreadFromWin32ThreadId(int? threadId)
            {
                if (!threadId.HasValue)
                {
                    threadId = GetCurrentWin32ThreadId();
                }

                foreach (Process process in Process.GetProcesses())
                {
                    foreach (ProcessThread processThread in process.Threads)
                    {
                        if (processThread.Id == threadId) return processThread;
                    }
                }

                throw new Exception();
            }

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