Question

我正在使用此代码来强调测试我的服务器。我试过webpound X 1000 http://local_dev.com。

代码似乎工作正常。它＆lt; 100行并且不难理解。简而言之，它使用webclient在阻塞和异步模式下点击一次站点（因此旁边的while循环）。然后它反复点击网站计算有多少成功。

问题出现在两台不同的机器上，我在异步模式下获得600-850（使用0作为第一个arg），并在单线程模式下随机获得160-350。

运行此应用时，我的CPU处于空闲状态。根据任务经理的说法，我的webapp从未达到1％，webpound不超过2％，而cpu总数从未超过5％。

问题出在这里？服务器是使用fastcgi的nginx。我怀疑问题是webclient / C＃。什么是我可能使用的具有相同想法的另一种工具？或者我如何修改这个，这样我每秒钟可以打多少？

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Diagnostics;
using System.IO;


namespace webpound
{
    class Program
    {
        static long count = 0;
        static void Main(string[] args)
        {
            var s = new Stopwatch();
            var wc = new WebClient();
            int time = 100, mthread=0;

            if (args.Count() == 0)
            {
                Console.WriteLine("[1 (for single) [ms time]] url");
                return;
            }
            string url = null;
            bool useSingle = false;
            if (args.Count() == 1)
            {
                url = args[0];;
            }
            else if (args.Count() == 2)
            {
                useSingle = args[0] == "1";
                url = args[1];
            }
            else if (args.Count() == 3)
            {
                useSingle = args[0] == "1";
                time = int.Parse(args[1]);
                url = args[2];
            }
            else
            {
                throw new Exception();
            }

            var uri = new Uri(url);
            wc.Headers["User-Agent"] = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";
            wc.DownloadStringCompleted += DownloadStringCompletedEventHandler;
            //wc.DownloadProgressChanged += DownloadProgressChangedEventHandler;
            wc.DownloadString(uri);
            wc.DownloadStringAsync(uri);

            while (System.Threading.Interlocked.Read(ref count)==0)
            {
                System.Threading.Thread.Sleep(1);
            }
            count = 0;
            WebException ex1 = null;
            s.Start();
            try
            {
                while (s.ElapsedMilliseconds < time)
                {
                    if (useSingle)
                    {
                        wc.DownloadString(url);
                        count++;
                    }
                    else
                    {
                        var wwc = new WebClient();
                        wwc.Headers["User-Agent"] = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";
                        wwc.DownloadStringCompleted += DownloadStringCompletedEventHandler;
                        var url2 = url + mthread.ToString();
                        wwc.DownloadStringAsync(new Uri(url2));
                        mthread++;
                        System.Threading.Thread.Sleep(1);
                    }
                }
            }
            catch(WebException ex)
            {
                ex1 = ex;
            }
            var mycount = count;
            s.Stop();
            if (ex1 == null)
            {
                Console.WriteLine("Finished with {0}/{1} in {2}", mycount,mthread, s.ElapsedMilliseconds);
            }
            else
            {
                var aa = new StreamReader(ex1.Response.GetResponseStream()).ReadToEnd();
                Console.WriteLine(ex1.Message);
                Console.WriteLine("Finished with {0}/{1} in {2}", mycount, mthread, s.ElapsedMilliseconds);
            }
        }

        static void DownloadProgressChangedEventHandler(object sender, DownloadProgressChangedEventArgs e)
        {
        }
        static void DownloadStringCompletedEventHandler(object sender, DownloadStringCompletedEventArgs e)
        {
            System.Threading.Interlocked.Increment(ref count);
        }
    }
}

如何使用C＃应用程序对我的webapp进行压力测试？

0 个答案: