Output

09-10 00:46:57.210  19553-19566/sarbs.com.tinker I/Tinker﹕ Running test...
09-10 00:47:25.250  19553-19566/sarbs.com.tinker I/Tinker﹕ Full loop with branching took 27535510 µs.
09-10 00:48:57.268  19553-19566/sarbs.com.tinker I/Tinker﹕ Full loop with virtmethod took 91837723 µs.

Tinker.java

package sarbs.com.tinker;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.SystemClock;
import android.util.Log;


public class Tinker extends Activity {

    // don't make these private, in order to avoid synthetic accessors
    int t;
    int bogus = 0;

    private interface Test {
        Test crunch();
    }

    private class One implements Test {
        @Override
        public Test crunch() {
            bogus++;
            bogus--;
            return (++t > 10 ? new Two() : this);
        }
    }

    private class Two implements Test {
        @Override
        public Test crunch() {
            bogus++;
            bogus--;
            return this;
        }
    }

    public final void runTest() {
        long start, end;

        boolean s = false;
        t = 0;

        start = SystemClock.currentThreadTimeMicro();
        for (int i = 0; i < Integer.MAX_VALUE; i++) {
            if (s) {
                bogus++;
                bogus--;
                s = (++t > 10);
            } else {
                bogus++;
                bogus--;
            }
        }
        end = SystemClock.currentThreadTimeMicro();

        Log.i("Tinker", String.format("Full loop with branching took %d µs.", end - start));

        t = 0;
        Test v = new One();

        start = SystemClock.currentThreadTimeMicro();
        for (int i = 0; i < Integer.MAX_VALUE; i++) {
            v = v.crunch();
        }
        end = SystemClock.currentThreadTimeMicro();

        Log.i("Tinker", String.format("Full loop with virtmethod took %d µs.", end - start));
    }

    @Override
    protected void onStart() {
        super.onStart();

        new AsyncTask<Void, Void, Void>() {
            @Override
            protected Void doInBackground(Void... voids) {
                Log.i("Tinker", "Running test...");
                runTest();
                return null;
            }
        }.execute();
    }
}