gistfile1.txt

//max has been set to 1000000;

private void writeTest(Map<Integer, Integer> map, int max) {
		long startTime = System.nanoTime();
		for(int i = 1; i <= max; i++) {
			Integer a = new Integer(i);
			map.put(a, a);
		}
		long endTime = System.nanoTime();
		double diff = (endTime - startTime)/(double)1000000000;
		System.out.println("Time taken to write (RAM): " + diff);
		
		Jedis jedis = new Jedis("localhost", 6379);
		jedis.flushAll();
		Pipeline p = jedis.pipelined();
		startTime = System.nanoTime();
		for(int i = 1; i <= max; i++) {
			String a = Integer.toString(i);
			p.set(a, a);
		}
		p.sync();
		endTime = System.nanoTime();
		diff = (endTime - startTime)/(double)1000000000;
		System.out.println("Time taken to write (Redis): " + diff);
		jedis.close();
		
		PrintWriter writer = null;
		try {
			writer = new PrintWriter(new BufferedWriter(
				new FileWriter("test.out")));
			startTime = System.nanoTime();
			for(int i = 1; i <= max; i++) 
				writer.println(i);
			writer.flush();
			endTime = System.nanoTime();
			diff = (endTime - startTime)/(double)1000000000;
			System.out.println("Time taken to write (File): " + diff);
		}catch(Exception e) {
			e.printStackTrace();
		}finally {
			if(writer != null)
				writer.close();
		}
	}
	
	
	private void readTest(Map<Integer, Integer> map, int max) {
		Set<Integer> keys = map.keySet();
		long startTime = System.nanoTime();
		for(Integer key : keys)
			map.get(key);
		long endTime = System.nanoTime();
		double diff = (endTime - startTime)/(double)1000000000;
		System.out.println("Time taken to read (RAM): " + diff);
		
		Jedis jedis = new Jedis("localhost", 6379);
		Pipeline p = jedis.pipelined();
		startTime = System.nanoTime();
		for(int i = 1; i <= max; i++) {
			String a = Integer.toString(i);
			p.get(a);
		}
		p.sync();
		endTime = System.nanoTime();
		diff = (endTime - startTime)/(double)1000000000;
		System.out.println("Time taken to read (Redis): " + diff);
		jedis.flushAll();
		jedis.close();
		
		Scanner scanner = null;
		try {
			scanner = new Scanner(new BufferedReader(
					new FileReader("test.out")));
			startTime = System.nanoTime();
			while(scanner.hasNext())
				scanner.nextLine();
			endTime = System.nanoTime();
			diff = (endTime - startTime)/(double)1000000000;
			System.out.println("Time taken to read (File): " + diff);
		}catch(Exception e) {
			e.printStackTrace();
		}finally {
			if(scanner != null)
				scanner.close();
		}
	}