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POSocket Low Transfer Speed - Win7 .Net4 - CentOSx64 Mono 2.10
 

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  1. POSocket Low Transfer Speed - Win7 .Net4 - CentOSx64 Mono 2.10
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    <p>I have created a simple client/server app and it works great (1MB/s which is max speed i set for server to send) when i run in locally or under Lan network. But when i try to run it in one of my Dedicate Server/VPS my download speed become slow. I am using CentOS on servers and Mono for running it, Mono version is 2.10.2 and CentOs is 64bit version. Created using framework 4.</p> <p>Speed test:</p> <p>Local: 1MB</p> <p>Lan: 1MB</p> <p>Running server on CentOS: 0~10~20 KB</p> <p>My connection speed is 2Mb or ~250KB. It will give me full speed some times. But very rare and i cant see why it give my full speed sometimes and sometimes no speed at all or why sometimes only 10KB and other times only 20KB. Also, i am running client part on my Win7 Desktop. Here is code for server and client part:</p> <p>Server:</p> <pre><code>class Program { private static BackgroundWorker _ListeningWorker; private static BackgroundWorker _QWorker; private static System.Net.Sockets.Socket _Server; private static List&lt;System.Net.Sockets.Socket&gt; ConnectedClients = new List&lt;System.Net.Sockets.Socket&gt;(); static void Main(string[] args) { Program._ListeningWorker = new BackgroundWorker(); Program._ListeningWorker.WorkerSupportsCancellation = true; Program._ListeningWorker.DoWork += _ListeningWorker_DoWork; Program._QWorker = new BackgroundWorker(); Program._QWorker.WorkerSupportsCancellation = true; Program._QWorker.DoWork += _QWorker_DoWork; Program.Start(); while (true) { Console.Clear(); Console.WriteLine("1.0.0.1"); Console.WriteLine(Program.ConnectedClients.Count.ToString()); System.Threading.Thread.Sleep(1000); } } public static bool Start() { if (!Program._ListeningWorker.IsBusy) { Program._Server = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPEndPoint ipLocal = new IPEndPoint(IPAddress.Any, 8081); Program._Server.Bind(ipLocal); Program._Server.Listen(10); Program._ListeningWorker.RunWorkerAsync(); Program._QWorker.RunWorkerAsync(); } return true; } private static void _ListeningWorker_DoWork(object sender, DoWorkEventArgs e) { while (!Program._ListeningWorker.CancellationPending) { if (Program._Server.Poll(10, SelectMode.SelectRead)) { lock (ConnectedClients) { Program.ConnectedClients.Add(Program._Server.Accept()); } } System.Threading.Thread.Sleep(1); } Program._Server.Close(); } private static void _QWorker_DoWork(object sender, DoWorkEventArgs e) { byte[] array = new byte[1024]; Random random = new Random(); while (!Program._QWorker.CancellationPending) { if (ConnectedClients.Count &gt; 0) { System.Net.Sockets.Socket[] st; lock (ConnectedClients) { st = new System.Net.Sockets.Socket[Program.ConnectedClients.Count]; ConnectedClients.CopyTo(st); } foreach (System.Net.Sockets.Socket ser in st) { random.NextBytes(array); try { ser.BeginSend(array, 0, array.Length, SocketFlags.None, (AsyncCallback)delegate(IAsyncResult ar) { try { ser.EndSend(ar); } catch (Exception) { iDissconnected(ser); } }, null); } catch (Exception) { iDissconnected(ser); } } } System.Threading.Thread.Sleep(1); } Program._Server.Close(); } internal static void iDissconnected(System.Net.Sockets.Socket client) { lock (ConnectedClients) for (int i = 0; i &lt; ConnectedClients.Count; i++) if (ConnectedClients[i].Equals(client)) { ConnectedClients.RemoveAt(i); i--; } } } </code></pre> <p>Client:</p> <pre><code>class Program { static void Main(string[] args) { Console.WriteLine("Enter IP Address: "); string Address = Console.ReadLine(); Console.WriteLine(); ushort Port = 8081; System.Net.Sockets.Socket Client; Client = new System.Net.Sockets.Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); Client.Connect(Address, (int)Port); Console.WriteLine("Connected"); int p = 0; int t = Environment.TickCount; while (true) { if (Client.Available &gt; 0) { byte[] z = new byte[1024]; int r = Client.Receive(z); ; p += r; } else { System.Threading.Thread.Sleep(10); } if (Environment.TickCount - t &gt;= 1000) { t = Environment.TickCount; Console.WriteLine(Program.FormatFileSizeAsString(p) + " Readed,"); p = 0; } } } public static string FormatFileSizeAsString(int len) { if (len &lt; 750 &amp;&amp; len &gt; 0) return "0.0 B ~"; string[] Suffix = { "B", "KB", "MB", "GB", "TB" }; int i; double dblSByte = len; for (i = 0; (int)(len / 1024) &gt; 0; i++, len /= 1024) dblSByte = len / 1024.0; return String.Format("{0:0.0} {1}", dblSByte, Suffix[i]); } } </code></pre> <p>Thanks all, Please tell me what you think about possible problems.</p>
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    1. PO
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    1. USSoroush Falahati
    1. USSoroush Falahati
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    1. This table or related slice is empty.
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    1. PO
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    1. This table or related slice is empty.
    1. CONothing?! No idea at all?
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      1. POSocket Low Transfer Speed - Win7 .Net4 - CentOSx64 Mono 2.10
      1. USSoroush Falahati
 

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