bitwise perfomance

main.dart

void main() {
  final x = 256;

  var s = Stopwatch();

  var bitwiseSumm = 0;
  var intDivSumm = 0;
  var divSumm = 0;

  for (var i = 0; i < 257; i++) {
    s.start();

    bitwise(x);
    var be = s.elapsedTicks;
    if (i >= 2) {
      bitwiseSumm += be;
    }
    print('bitwise: ${be}');

    s.reset();
    s.start();

    intDiv(x);
    var ide = s.elapsedTicks;
    if (i >= 2) {
      intDivSumm += ide;
    }
    print('int-div: ${ide}');

    s.reset();
    s.start();

    div(x);
    var de = s.elapsedTicks;
    if (i >= 2) {
      divSumm += de;
    }
    print('divison: ${de}');

    s.reset();
  }

  print('avg bitwise: ${bitwiseSumm / 256}');
  print('avg int-div: ${intDivSumm / 256}');
  print('avg divison: ${divSumm / 256}');
}

void bitwise(int x) {
  x >> 4;
}

void intDiv(int x) {
  x ~/ 16;
}

void div(int x) {
  x / 16;
}