性能测试之如何获取网页相应时间

发布: 2009-4-17 10:01 | 作者: 不详 | 来源: 测试时代采编 | 查看: 285次 | 进入软件测试论坛讨论

性能测试之如何获取网页相应时间

前一段时间，为了测试的需要，需要编写一个多线程的程序，就是最大限度的访问某个网页上认证标签，以获得大概该认证标签每秒钟能响应多少次，于是搜索了一些网上的资料，于是编写了下面的这个程序，虽然这个程序不是我们使用的最终版本，但是也反映了测试的思想，大家略微进行改造，就可以用于类似的测试。 using System;
using System.Net;
using System.IO;
using System.Threading;
using System.Timers;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.ComponentModel;

namespace TestUrl
{

    internal class HiPerfTimer
    {
        [DllImport("Kernel32.dll")]
        private static extern bool QueryPerformanceCounter(
            out long lpPerformanceCount);

        [DllImport("Kernel32.dll")]
        private static extern bool QueryPerformanceFrequency(
            out long lpFrequency);

private long startTime, stopTime;
private long freq;

        // Constructor
        public HiPerfTimer()
        {
            startTime = 0;
            stopTime = 0;

            if (QueryPerformanceFrequency(out freq) == false)
            {
                // high-performance counter not supported
                throw new Win32Exception();
            }
        }

        // Start the timer
        public void Start()
        {
            // lets do the waiting threads there work
            Thread.Sleep(0);

QueryPerformanceCounter(out startTime);
}

        // Stop the timer
        public void Stop()
        {
            QueryPerformanceCounter(out stopTime);
        }

        // Returns the duration of the timer (in seconds)
        public double Duration
        {
            get
            {
                return (double)(stopTime - startTime) / (double)freq;
            }
        }
    }

class Program
{

static long rt = 0;
static long wr = 0;

public static int PostData(string url, string data, out string info)
{

            info = "";
            CookieContainer cc = new CookieContainer();
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;