mono/profiler/test-busy.cs

   1 using System.Threading;
   2
   3 class T {
   4
   5         static int count = 10;
   6         static void test2 () {
   7                 //Thread.Sleep (500);
   8                 //return;
   9                 int v = 0;
  10                 for (int i = 0; i < count; ++i) {
  11                         v += test3 ();
  12                 }
  13         }
  14
  15         static int test3 () {
  16                 int v = 33;
  17                 for (int i = 0; i < 10000000; ++i) {
  18                         v += i * 1000;
  19                         v /=  (1 + i) * 2;
  20                 }
  21                 return v > 0? 0: 1;
  22         }
  23         static int test () {
  24                 int v = 33;
  25                 for (int i = 0; i < 10000000; ++i) {
  26                         v += i * 1000;
  27                         v /=  (1 + i) * 2;
  28                 }
  29                 return v > 0? 0: 1;
  30         }
  31         static int Main (string[] args) {
  32                 if (args.Length > 0)
  33                         count = int.Parse (args [0]);
  34                 Thread t = new Thread (test2);
  35                 t.Name = "BusyHelper";
  36                 t.Start ();
  37                 int v = 0;
  38                 for (int i = 0; i < count; ++i) {
  39                         v += test ();
  40                 }
  41                 t.Join ();
  42                 return v > 0? 0: 1;
  43         }
  44 }
  45