public static void performanceEstimator(Path path) {
		double bench = benchmark(path);
		System.out.println("Number of distinct words: " + (int) bench);
		for (int i = 1; i < 16; i++) {
		    double h = hyperLogLog(path, new LookUp3(), i, 1);
		    System.out.println("b = " + i + " : " + h + " ; error : "
			    + (Math.abs(h - bench) / bench) * 100 + "%");
		}
    }