mono/tests/sgen-suspend.cs

   1 using System;
   2 using System.Threading;
   3
   4 /*
   5 This test stresses the interaction of the multiple suspend sources and stop-the-world.
   6
   7 Right now the current iteraction that we stresses is between the domain unloader and
   8 sgen STW. It's mighty hard to get this right on mach.
   9 */
  10
  11 class Driver {
  12
  13         static void AllocStuff ()
  14         {
  15                 var x = new object ();
  16                 for (int i = 0; i < 300; ++i)
  17                         x = new byte [i];
  18         }
  19
  20         static void BackgroundNoise ()
  21         {
  22                 int i = 0;
  23                 while (true) {
  24                         AllocStuff ();
  25                         ++i;
  26                 }
  27         }
  28
  29         static void AppDomainBackgroundNoise ()
  30         {
  31                 for (int i = 0; i < 3; ++i) {
  32                         var t = new Thread (BackgroundNoise);
  33                         t.IsBackground = true;
  34                         t.Start ();
  35                 }
  36         }
  37
  38         static void Main () {
  39                 for (int i = 0; i < 3; ++i) {
  40                         var t = new Thread (BackgroundNoise);
  41                         t.IsBackground = true;
  42                         t.Start ();
  43                 }
  44
  45                 for (int i = 0; i < 100; ++i) {
  46                         var ad = AppDomain.CreateDomain ("domain_" + i);
  47                         ad.DoCallBack (new CrossAppDomainDelegate (AppDomainBackgroundNoise));
  48                         Thread.Sleep (10);
  49                         AppDomain.Unload (ad);
  50                         Console.Write (".");
  51                         if (i > 0 && i % 20 == 0) Console.WriteLine ();
  52                 }
  53                 Console.WriteLine ("\ndone");
  54         }
  55 }