测量上传速度

Question

我正在创建一个Windows应用程序来监控我的服务器。我想知道托管我的Web应用程序的服务器的上传和下载速度。我使用FTP来检查速度，因为HTTP和FTP都使用TCP连接。下面定义了上传速度的计算。有没有其他方法来检查上传速度？听说可以通过监控nic卡找到上传速度。等待建议继续.. 是否可以使用（totalDataSent / TotalTimeTaken）方法进行计算。

但速度因文件大小而异。  请给出你的建议

 private string UploadSpeedCheck()
    {
        FileStream rdr;
        FtpWebRequest request;
        FtpWebResponse response;
        Stream requestStream;
        try
        {
            //Upload 
            DateTime start = new DateTime();
            DateTime end = new DateTime();

            rdr = new FileStream("C:\\test\\temp2.txt", FileMode.Open);
            request = (FtpWebRequest)FtpWebRequest.Create(url);
            request.Credentials = new NetworkCredential(serverUserName, serverPassWord);
            request.Method = WebRequestMethods.Ftp.UploadFile;
            request.KeepAlive = false;//Do not keep alive (stateless mode)
            requestStream = request.GetRequestStream();
            byte[] inData = new byte[rdr.Length];
            int bytesRead = rdr.Read(inData, 0, int.Parse(rdr.Length.ToString()));
            start = DateTime.Now;
            requestStream.Write(inData, 0, int.Parse(rdr.Length.ToString()));
            requestStream.Close();
            response = (FtpWebResponse)request.GetResponse();
            end = DateTime.Now;
            response.Close();
            double sizeInKb = (rdr.Length * 8) / 1024;
            TimeSpan ts = end.Subtract(start);
            double speed = sizeInKb / ts.TotalSeconds;
            string unit = "Kbps";
            if (speed > 1000)
            {
                speed = speed / 1024;
                unit = "Mbps";
            }
            return "Upload Speed      : " + speed.ToString("0.0") + " " + unit;
        }
        catch (Exception e)
        {
            return "Test failed";
        }
        finally
        {
            rdr = null;
            request = null;
            response = null;
            requestStream = null;
        }

    }