redis全局ID生成脚本的测试程序，注意要使用jedis2.4.0以上。

TestIdGenenator.java

package com.test;

import java.util.List;
import java.util.Random;
import java.util.concurrent.CountDownLatch;

import org.springframework.util.StopWatch;

import redis.clients.jedis.Jedis;

public class TestIdGenenator {
	static String host = "localhost";
	static int threadCount = 20;
	static int genCount = 10000;
	static StopWatch watch = new StopWatch();
	static final String script = "local step = redis.call('GET', 'idgenerator_step');\n"
			+ "local shardId = KEYS[1] % 1024;\n"
			+ "local next = redis.call('INCRBY', 'idgenerator_next_' .. shardId, step);\n"
			+ "return {math.currentMiliseconds(), shardId, next};\n";
	
	public static void main(String[] args) throws InterruptedException {
		test();
//		testOne();
	}
	
	static public void testOne() {
		Jedis jedis = new Jedis(host);
		Object object = jedis.eval(script, 1, "1");
		System.err.println("object:" + object);
		
		List result = (List)object;
		
		System.err.println("pc miliSeconds:" + System.currentTimeMillis());
		System.err.println("   miliSeconds:" + (long)result.get(0));
		System.err.println("shardingId:" + (long)result.get(1));
		System.err.println("next:" + result.get(2));
	}
	
	static public void test() throws InterruptedException {
		{
			Jedis jedis = new Jedis(host);
			jedis.flushAll();
			jedis.set("idgenerator_step", "2");
			jedis.set("idgenerator_next", "1");
		}
		
		final CountDownLatch latch = new CountDownLatch(threadCount);
		
		watch.start();
		for(int i = 0; i < threadCount; ++i) {
			Thread thread = new Thread() {
				public void run() {
					Jedis jedis = new Jedis(host);
					for(int j = 0; j < genCount; ++j) {
						jedis.eval(script, 1, "" + j);
					}
					latch.countDown();
				}
			};
			thread.start();
		}
		
		latch.await();
		watch.stop();
		
		System.err.println("time:" + watch.getTotalTimeSeconds());
		System.err.println("speed:" + genCount * threadCount / watch.getTotalTimeSeconds());
	}
}