A simple static class to mark duration of execution in same part of your Java code.

Benchmark.java

    static class Benchmark {
        static HashMap<String, Double> points = new HashMap<String, Double>();
        public static void start(final String label) {
            points.put(label, (double) System.nanoTime());
        }
        public static void end(final String label) {
            points.put(label, System.nanoTime() - points.get(label));
        }
        
        public static void print() {
            Set<Entry<String, Double>> set = points.entrySet();
            Iterator<Entry<String, Double>> iterator = set.iterator();
            while(iterator.hasNext()) {
                Entry<String, Double> entry = iterator.next();
                System.out.printf("%10s - %5.2fms\n", entry.getKey(), (entry.getValue()/1000000D));
            }
        }
    }