redis 使用管道pipeline和不使用管道的效能對比
predis3.php程式碼如下所示:
<?php
include('runtime.php');
try{
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$runtime= new runtime;
$runtime->start();
$redis->pipeline();
for ($i=0; $i < 100000 ; $i++) {
$redis->set("test_{$i}", pow($i, 2));
$redis->get('test_{$i}');
}
$redis->exec();
$runtime->stop();
$runtime->spent($echo = true,'管道執行時間');
$runtime->clear();
//平常執行的redis
$runtime= new runtime;
$runtime->start();
for ($i=0; $i < 100000 ; $i++) {
$redis->set("test_{$i}", pow($i, 2));
$redis->get('test_{$i}');
}
$runtime->stop();
$runtime->spent($echo = true,'平常的redis執行時間');
$runtime->clear();
//var_dump($result);
}catch (\Exception $e) {
echo $e->getMessage();
}
?>
runtime.php程式碼如下所示:
<?php
/**
* PHP指令碼執行時間計算
*/
class runtime
{
public $StartTime = 0;
public $StopTime = 0;
public function get_microtime()
{
list($usec, $sec) = explode(' ', microtime());
return ((float)$usec + (float)$sec);
}
public function start()
{
$this->StartTime = $this->get_microtime();
}
public function stop()
{
$this->StopTime = $this->get_microtime();
}
public function spent($echo=false,$title='') {
$spent = sprintf('%.4f',round(($this->StopTime-$this->StartTime)*1000,1));
if($echo) {
echo $title."{$spent}毫秒<br/>";
}else{
return $spent;
}
}
public function clear()
{
$this->StartTime = 0;
$this->StopTime = 0;
}
}
#測試指令碼程式碼
/*
$runtime= new runtime;
$runtime->start();
$a = 0;
for($i=0;$i<=10000;$i++) {
$a = $i*$a;
}
$runtime->stop();
$runtime->spent($echo = true,'執行時間');
$runtime->clear();
*/
?>
執行時間對比如下所示:
