Hi,
I've ran your tests on my linux box...
Between Gentoo Linux on a 3Ghz PIV and Gentoo Linux on a 3Ghz Xeon in a
100Mbit/s ethernet (with a router in the middle)
Mono 1.2.4 -> Mono 1.2.4. :
20000000 Bytes received (82,9530454655273MBit/s).
20000000 Bytes received (84,3471687291307MBit/s).
20000000 Bytes received (83,6054866100588MBit/s).
20000000 Bytes received (85,4498641614191MBit/s).
20000000 Bytes received (84,066551285325MBit/s).
20000000 Bytes received (83,0987524799784MBit/s).
20000000 Bytes received (82,9746839053487MBit/s).
20000000 Bytes received (75,9913065945256MBit/s).
20000000 Bytes received (84,3420555318636MBit/s).
20000000 Bytes received (84,7406908378895MBit/s).
~83Mbit/s
Thats acceptable no?
Le lundi 18 juin 2007 à 09:38 +0200, Hund a écrit :
> Hi,
> is MONO network streaming slow?
>
> First I built a very simple client/server program
> to get a data stream over network.
> In both programs I used a TcpClient,
> a NetworkStream and a byte array (8kB chunks)
> to stream 20 MB of data.
>
> Then I tested the transfer rate of the client/server
> program between different Linux/MONO (1.2.3.1)
> and different Windows/.NET (2.0) hosts
> in a 100 Mbit/s ethernet.
>
> The strange result: If MONO was involved
> the speed was dramatically reduced.
> Only a .NET/.NET transfer showed a realistic
> rate.
>
> .NET --> MONO : 31...42 Mbit/s LOW
> MONO --> MONO : 43...45 Mbit/s LOW
> MONO --> .NET : 51...76 Mbit/s LOW
> .NET --> .NET : 94 Mbit/s O.K.
>
> What's wrong here?
> Any suggestions or hints?
> Thanks in advance.
>
> Cheers
> Andreas
>
> =======================================================
>
>
> Sourcecodes:
>
> // ******
> // Client
> // ******
>
> using System;
> using System.IO;
> using System.Net.Sockets;
>
> namespace SimpleStreamClient
> {
> class SimpleStreamClient
> {
> public static void Main(string[] args) {
> TcpClient client;
> NetworkStream netStream;
> byte[] buf = new byte[8192];
> int bytesToReceive = buf.Length;
> int receivedBytes = 0;
> int bytesReceived = 0;
>
> for(int index = 0; index < 10; index++) {
> client = new TcpClient(args[0], 14866);
> netStream = client.GetStream();
> DateTime startTime = DateTime.Now;
> bytesReceived = 0;
>
> while(true) {
> bytesToReceive = buf.Length;
>
> while(bytesToReceive > 0) {
> receivedBytes = netStream.Read(buf, 0, bytesToReceive);
> if(receivedBytes == 0) {
> break;
> }
> bytesReceived += receivedBytes;
> bytesToReceive -= receivedBytes;
> }
> if(receivedBytes == 0) {
> break;
> }
> }
> double rate = bytesReceived / (((TimeSpan)(DateTime.Now -
> startTime)).TotalMilliseconds * 1000) * 8;
> Console.WriteLine(bytesReceived + " Bytes received (" + rate +
> "MBit/s).");
> }
> Console.ReadKey();
> }
> }
> }
>
>
> // ******
> // Server
> // ******
>
> using System;
> using System.IO;
> using System.Net;
> using System.Net.Sockets;
>
> namespace SimpleStreamServer
> {
> class SimpleStreamServer
> {
> public static void Main(string[] args) {
> TcpClient client;
> NetworkStream netStream;
> byte[] bigBuf = new byte[20000000];
> MemoryStream ms = new MemoryStream(bigBuf);
> byte[] buf = new byte[8192];
> string host =
> Dns.GetHostEntry(args[0]).AddressList[0].ToString();
> IPAddress ipAddr = IPAddress.Parse(host);
> TcpListener listener = new TcpListener(ipAddr, 14866);
> listener.Start();
>
> while(true) {
> Console.WriteLine("Waiting for client ...");
> client = listener.AcceptTcpClient();
> Console.WriteLine("New client!");
> netStream = client.GetStream();
> ms.Seek(0, SeekOrigin.Begin);
> int readBytes = 0;
> while((readBytes = ms.Read(buf, 0, buf.Length)) != 0) {
> netStream.Write(buf, 0, readBytes);
> }
> netStream.Flush();
> client.Close();
> }
> }
> }
> }
>
>
> _______________________________________________
> Mono-list maillist - [email protected]
> http://lists.ximian.com/mailman/listinfo/mono-list
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