mysql和redis效率问题？
<?php
$redis = new redis();
$redis->connect('127.0.0.1', 6379);
for ($i=0; $i <100 ; $i++) {
$redis->lpush('test',rand(1000,9999));
}
var_dump($redis->lrange('test', 0, 99));
$redis->delete('test');
$redis->close();
die;
?>
=================================
<?php
$host = 'mysql:host=127.0.0.1;dbname=test';
$user = 'root';
$pass = 'root';
$pdo = new PDO($host, $user, $pass);
for ($i=0; $i < 100 ; $i++) {
$pdo->query('insert into abc (title) values( title = '.rand(1000,9999).')');
}
var_dump($pdo->query('select * from abc')->fetch());
$pdo->query('truncate table abc');
die;
?>使用ab压力测试
ab -n10000 -c10000
二者测试结果接近，MYSQL略优，但是如果直接运行以下代码
<?php
$redis = new redis();
$redis->connect('127.0.0.1', 6379);
for ($i=0; $i <10000 ; $i++) {
$redis->lpush('test',rand(1000,9999));
}
var_dump($redis->lrange('test', 0, 9999));
$redis->delete('test');
$redis->close();
die;
?>
=================================
<?php
$host = 'mysql:host=127.0.0.1;dbname=test';
$user = 'root';
$pass = 'root';
$pdo = new PDO($host, $user, $pass);
for ($i=0; $i < 10000 ; $i++) {
$pdo->query('insert into abc (title) values( title = '.rand(1000,9999).')');
}
var_dump($pdo->query('select * from abc')->fetch());
$pdo->query('truncate table abc');
die;
?>mysql耗费的时间是redis的100多倍，这是为什么？是和连接数有关吗
