Foreach/For loop performance test

void Test() {
    System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch ();
    int repetitions = 1000000;
    int subreps = 10;

    List<int> list = new List<int> ();
    for (int i = 0; i < repetitions; i++) { // populate list
        list.Add (0);
    }

    sw.Start ();
    for (int i = 0; i < repetitions; i++) {
        for (int j = 0; j < subreps; j++) {
            int x = list [i];
        }
    }
    print("for loop: " + sw.ElapsedMilliseconds + "ms");

    sw.Reset ();
    sw.Start ();

    foreach (int i in list) {
        for (int j = 0; j < subreps; j++) {
            int x = i;
        }
    }
    print("foreach loop: " + sw.ElapsedMilliseconds + "ms")
}