mono/profiler/test-busy.cs

   1 using System;
   2 using System.Threading;
   3
   4 class T {
   5
   6         static int count = 10;
   7         static void test2 () {
   8                 //Thread.Sleep (500);
   9                 //return;
  10                 int v = 0;
  11                 for (int i = 0; i < count; ++i) {
  12                         v += test3 ();
  13                 }
  14         }
  15
  16         static int test3 () {
  17                 int v = 33;
  18                 for (int i = 0; i < 10000000; ++i) {
  19                         v += i * 1000;
  20                         v /=  (1 + i) * 2;
  21                 }
  22                 return v > 0? 0: 1;
  23         }
  24         static int test () {
  25                 int v = 33;
  26                 for (int i = 0; i < 10000000; ++i) {
  27                         v += i * 1000;
  28                         v /=  (1 + i) * 2;
  29                 }
  30                 return v > 0? 0: 1;
  31         }
  32         static int Main (string[] args) {
  33                 if (args.Length > 0)
  34                         count = int.Parse (args [0]);
  35                 Thread t = new Thread (test2);
  36                 t.Name = "BusyHelper";
  37                 t.Start ();
  38                 int v = 0;
  39                 for (int i = 0; i < count; ++i) {
  40                         v += test ();
  41                 }
  42                 t.Join ();
  43                 return v > 0? 0: 1;
  44         }
  45 }
  46