Redis基础学习之管道机制详析

# 不使用管道执行get set 100000次请求
[root@iz2zeaf3cg1099kiidi06mz ~]# redis-benchmark -t get,set -q -n 100000
SET: 55710.31 requests per second
GET: 54914.88 requests per second
# 每次pipeline组织的命令个数 为 100
[root@iz2zeaf3cg1099kiidi06mz ~]# redis-benchmark -P 100 -t get,set -q -n 100000
SET: 1020408.19 requests per second
GET: 1176470.62 requests per second
# 每次pipeline组织的命令个数 为 10000
[root@iz2zeaf3cg1099kiidi06mz ~]# redis-benchmark -P 10000 -t get,set -q -n 100000
SET: 321543.41 requests per second
GET: 241545.89 requests per second

public class JedisUtils {
 private static final JedisUtils jedisutils = new JedisUtils();

 public static JedisUtils getInstance() {
 return jedisutils;
 }

 public JedisPool getPool(String ip, Integer port) {
 JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
 jedisPoolConfig.setMaxIdle(RedisConfig.MAX_IDLE);
 jedisPoolConfig.setMaxTotal(RedisConfig.MAX_ACTIVE);
 jedisPoolConfig.setMaxWaitMillis(RedisConfig.MAX_WAIT);
 jedisPoolConfig.setTestOnBorrow(true);
 jedisPoolConfig.setTestOnReturn(true);
 JedisPool pool = new JedisPool(jedisPoolConfig, ip, port,RedisConfig.TIMEOUT,RedisConfig.PASSWORD);
 return pool;
 }

 public Jedis getJedis(String ip, Integer port) {
 Jedis jedis = null;
 int count = 0;
 while (jedis == null && count < RedisConfig.RETRY_NUM) {
  try {
  jedis = getInstance().getPool(ip, port).getResource();
  } catch (Exception e) {
  System.out.println("get redis failed");
  }
  count++;
 }
 return jedis;
 }

 public void closeJedis(Jedis jedis) {
 if (jedis != null) {
  jedis.close();
 }
 }

 public static void main(String[] args) throws InterruptedException {
 Jedis jedis = JedisUtils.getInstance().getJedis("127.0.0.1", 6379);
 Pipeline pipeline = jedis.pipelined();
 pipeline.set("hello", "world");
 pipeline.incr("counter");
 System.out.println("还没执行命令");
 Thread.sleep(100000);
 System.out.println("这里才开始执行");
 pipeline.sync();
 }
}

127.0.0.1:6379> get hello
(nil)
127.0.0.1:6379> get counter
(nil)

127.0.0.1:6379> get hello
"world"
127.0.0.1:6379> get counter
"1"