Create thread with >70% CPU utilization

while(i++< 2000)
{
   cout<<" in while "<< endl;
   Sleep(10); // sleep for 10 ms.
}

// A bit like generating a hashcode. Pretty arbitrary choice,
// but simple code which would be hard for the compiler to
// optimise away.
int running_total = 23;
for (int i=0; i < some_large_number; i++)
{
    running_total = 37 * running_total + i;
}
return running_total;

while(i++< 2000)
{
   int sleepBalance = 10; // increase this to reduce the CPU load
   int computeBalance = 1000; // increase this to increase the CPU load
   for (int i=0; i<computeBalance; i++)
   {
     /* both volatiles are important to prevent compiler */
     /* optimizing out the function */
     volatile int n = 30;
     volatile int pretendWeNeedTheResult = Factorial(n);
   }
   Sleep(sleepBalance);
}