Profiling of Euler #2

// For http://codereview.stackexchange.com/a/77129/58964
// Profile with:
// for ((i=0; i<100; i++)) ; do java FiboSmart ; done | grep 'Time used:' | sed 's/Time used: //' | sort -n | head -n 1
public class FiboSmart {
    private static final long MAX_NUM = 4000000;
    private static final int RUNS = 100;
    public static void main(String[] args) {
        final long START = System.nanoTime();
        long result = 0;
        for (int i = 0; i < RUNS; i++)
            result = function1();
        //long even1 = 0, even2 = 0, even = 2;

        //while (even <= MAX_NUM) {
        //    result += even;
        //    even2 = even1;
        //    even1 = even;
        //    even = even1 * 4 + even2;
        //}
        final long END = System.nanoTime();
        final long TIME = (END - START) / RUNS;
        System.out.format("Result: %d%nTime used: %d%n", result, TIME);
    }

    public static long function1() {
        long result = 0;

        long odd1, odd2 = 1, even = 2;

        while (even <= MAX_NUM) {
            result += even;
            //empty();
            odd1 = even + odd2;
            odd2 = odd1 + even;
            even = odd2 + odd1;
        }
        return result;
    }
    public static void empty() {
    }
    public static long function2() {
        long result = 0;

        long prevPrevEven, prevEven = 0, even = 2;

        while (even <= MAX_NUM) {
            result += even;
            //empty();
            prevPrevEven = prevEven;
            prevEven = even;
            even = (even << 2) + prevPrevEven;
        }
        return result;
    }
}