[Mono-list] Multithreaded output : bug or feature

[Yury Serdyuk]

Hi !

I have tried the following program:

using System;
using System.Threading;

public class MultiThreadedOutput   {

 public static void Main ( String[] args )  {
 
  int   P   = Convert.ToInt32 ( args [ 0 ] );
   
  for ( int i = 0; i < P; i++ ) {
   ThreadObject tobj = new ThreadObject ( i );
   Thread t = new Thread ( new ThreadStart ( tobj.Run ) );
   t.Start ();
  }
 
  Console.ReadKey ();
  
 }

}

public class ThreadObject   {

 private int myNumber;
 
 public ThreadObject ( int i )  {
 
  myNumber = i;
 
 }
 
 public void Run ()   {
 
  Console.WriteLine ( "Thread " + myNumber + " start ..." );
 
  Console.WriteLine ( "Thread " + myNumber + " finish ..." );
 
 }
 
}

The output which I got:

> [serdyuk at node-284 nqueen]$ mono MultiThreadedOutput.exe 1
> Thread 0 start ...
> Thread 0 finish ...
>
> [serdyuk at node-284 nqueen]$ mono MultiThreadedOutput.exe 2
> Thread 1 start ...Thread 0 start ...Thread 1 start ...Thread 0 start ...
>
> Thread 0 finish ...
> Thread 1 finish ...
>
> [serdyuk at node-284 nqueen]$ mono MultiThreadedOutput.exe 3
> Thread 0 start ...Thread 1 start ...Thread 2 start ...Thread 0 start 
> ...Thread 0 start ...Thread 1 start ...Thread 2 start ...
> Thread 0 finish ...
>
> Thread 1 finish ...
>
> Thread 2 finish ...

Is it true ?
Under Windows I got like:

> D:\users\serdyuk>MultiThreadedOutput 1
> Thread 0 start ...
> Thread 0 finish ...
>
> D:\users\serdyuk>MultiThreadedOutput 2
> Thread 0 start ...
> Thread 0 finish ...
> Thread 1 start ...
> Thread 1 finish ...
>
> D:\users\serdyuk>MultiThreadedOutput 2
> Thread 0 start ...
> Thread 1 start ...
> Thread 0 finish ...
> Thread 1 finish ...
>
> D:\users\serdyuk>MultiThreadedOutput 2
> Thread 1 start ...
> Thread 0 start ...
> Thread 0 finish ...
> Thread 1 finish ...

I have tried my program under

> [serdyuk at node-284 nqueen]$ mono -V
> Mono JIT compiler version 1.9.1 (tarball)
> Copyright (C) 2002-2007 Novell, Inc and Contributors. www.mono-project.com
>         TLS:           __thread
>         GC:            Included Boehm (with typed GC)
>         SIGSEGV:       altstack
>         Notifications: epoll
>         Architecture:  amd64
>         Disabled:      none

> [serdyuk at node-284 nqueen]$ uname -a
> Linux node-284 2.6.21-1.3194.fc8 #1 SMP Tue Feb 12 18:15:41 EET 2008 
> x86_64 x86_64 x86_64 GNU/Linux

> [serdyuk at node-284 proc]$ cat cpuinfo
> processor       : 0
> vendor_id       : AuthenticAMD
> cpu family      : 15
> model           : 33
> model name      : Dual Core AMD Opteron(tm) Processor 875 HE

( 2 processors ).

Thanks.

Yury Serdyuk