登录压力测试

Question

我想模拟LDAP的登录压力测试。同时从多个请求向LDAP发送auth请求。

我写了以下文章：

 static void Main(string[] args)
    {
        string a = "", b = "", c = "", d = "", 
e = "", f = "", g = "", h = "", i = "", j = "", k = "";

        Stopwatch stopwatch = new Stopwatch();
        stopwatch.Start();
        var startTime = DateTime.Now.ToString("hh:mm:ss.fff tt");

        Parallel.Invoke
               (
                   () => a = LdsConnection.Auth("username", "password", true),
                   () => b = LdsConnection.Auth("username", "password", true),
                   () => c = LdsConnection.Auth("username", "password", true),
                   () => d = LdsConnection.Auth("username", "password", true),
                   () => e = LdsConnection.Auth("username", "password", true),
                   () => f = LdsConnection.Auth("username", "password", true),
                   () => g = LdsConnection.Auth("username", "password", true),
                   () => h = LdsConnection.Auth("username", "password", true),
                   () => i = LdsConnection.Auth("username", "password", true),
                   () => j = LdsConnection.Auth("username", "password", true),
                   () => k = LdsConnection.Auth("username", "password", true)
               );
        stopwatch.Stop();
        var endTime = DateTime.Now.ToString("hh:mm:ss.fff tt");

        Console.WriteLine(a + "\n");
        Console.WriteLine(b + "\n");
        Console.WriteLine(c + "\n");
        Console.WriteLine(d + "\n");
        Console.WriteLine(e + "\n");
        Console.WriteLine(f + "\n");
        Console.WriteLine(g + "\n");
        Console.WriteLine(h + "\n");
        Console.WriteLine(j + "\n");
        Console.WriteLine(k + "\n");

        // Total run time
        Console.WriteLine("Started:{0}\nEnded: {1}\nElapsed: {2}", 
startTime, endTime, stopwatch.Elapsed);

        Console.ReadKey();
    }


public static string Auth (string username, string password, bool fullDn)
   {
       var url = GenerateUrl(fullDn);

       Stopwatch stopwatch = new Stopwatch();
       stopwatch.Start();
       var startTime = DateTime.Now.ToString("hh:mm:ss.fff tt");
       try
       {
           Connect(username, password, url);
           stopwatch.Stop();
           var elaps = stopwatch.Elapsed.ToString();
           var endTime = DateTime.Now.ToString("hh:mm:ss.fff tt");
           return string.Format("Started:{0}\nEnded: {1}\nElapsed: {2}", 
startTime, endTime, elaps);
       }
       catch (Exception exception)
       {

           return "Error";
       }

   }

问题是：

1. 我如何自动化这一点，例如，一个表示调用次数的参数，而不是手动多次调用同一个函数，因为用户名和密码对于所有函数都是相同的？
2. 我不太确定是否所有的电话都在同时请求身份验证。

有小费吗？

Answer 1

你可以试试这个。

static void Main(string[] args)
{
    const int numberOfTasks = 10;

    Stopwatch stopwatch = new Stopwatch();
    stopwatch.Start();
    var startTime = DateTime.Now.ToString("hh:mm:ss.fff tt");

    List<Task<string>> taskList = new List<Task<string>>();

    for(int i = 0; i < numberOfTasks; i++)
      taskList.Add(new Task<string> ( LdsConnection.Auth("username", "password", true) )

    foreach(var task in taskList)
      taskList.Start();

    foreach(var task in taskList)
      Console.WriteLine(task.Result);

    Console.ReadKey();
}

Answer 2

Parallel.ForEach()可能是您更好的选择。您可以在this answer中看到一个很好的小例子。

对于时间安排，只有服务器才能确定，因为重要的是服务器的透视图。您可以检查它的日志，以了解请求有多接近。