ab工具测试 swoole 和 ngixn＋php-fpm 的并发对比

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测试样例: 执行的一条sql记录的1w次插入分两组: 一组用nginx+pfm 来执行, 一组用swoole 来执行

公平性保证前提: @1.为了保证公平性, 在nginx里把 access_log, error_log都关掉. vim nginx.conf 的http模块 access_log off; error_log off; rewrite_log off;@2. ulimit -n 10240 把进程的可操作文件描述符数调大, 默认才1024(我这每次并发都1k了) 和nginx 里设置 worker_rlimit_nofile 30000; @3. max_connections=2048 mysql的最大可连接数开到2048 @4. php-fpm 数量为5个, swoole的工作进程也只开5个.

nginx + fpm 组: 测试代码如下:

<?php
$link = mysqli_connect("192.168.0.7","root","root", "testdb") or die(mysql_error());
$sql = "INSERT INTO test (`user_id`,`date`,`fee`) VALUE('100','2018-09-21',300)";
$result = mysqli_query($link, $sql) or die(mysqli_error($link));?>

脚本执行的只是一条sql记录的插入:ab -n 10000 -c 1000 http://proxy.com/press.php[http://proxy.com 就是ip 192.168.0.7的nginx虚拟主机] -n 表示总共执行1w次请求, -c 表示每次并发数, 即每次并发1000条,总共1w条然后开始执行nginx + php-fpm 组合版的压测 [root@07 server]# ab -n 10000 -c 1000 http://proxy.com/press.php

Server Software: nginx
Server Hostname: proxy.com
Server Port: 80

Document Path: /press.php
Document Length: 0 bytes

Concurrency Level: 1000
Time taken for tests: 111.796 seconds
Complete requests: 10000
Failed requests: 1368
(Connect: 0, Receive: 0, Length: 1368, Exceptions: 0)
Write errors: 0
Non-2xx responses: 1368
Total transferred: 1985628 bytes
HTML transferred: 231368 bytes
Requests per second: 89.45 [#/sec] (mean)
Time per request: 11179.624 [ms] (mean)
Time per request: 11.180 [ms] (mean, across all concurrent requests)
Transfer rate: 17.34 [Kbytes/sec] received

看上面的结果,1w个请求总花费了64s才执行完,但失败的请求就达到 7777 , 即成功的只有2223个.每秒的并发数只有155个 [nginx没有打印任何log, 数据库插入也确实只有2223条记录]

然后轮到swoole组了 ab -n 10000 -c 1000 http://127.0.0.1:9501/ 完整代码如下:

<?php
// Server
class Server
{
private $serv; public function __construct() {
$this->serv = new swoole_server("0.0.0.0", 9501);
$this->serv->set(array(
'worker_num' => 5, //fpm只开了5个, swoole也只开5个子进程
'daemonize' => false,
)); $this->serv->on('Start', array($this, 'onStart'));
$this->serv->on('Connect', array($this, 'onConnect'));
$this->serv->on('Receive', array($this, 'onReceive'));
$this->serv->on('Close', array($this, 'onClose')); $this->serv->start();
} public function onStart( $serv ) {
echo "Start\n";
} public function onConnect( $serv, $fd, $from_id ) {
} public function onReceive( swoole_server $serv, $fd, $from_id, $data ) {
$link = mysqli_connect("192.168.0.7","root","root", "testdb");
$sql = "INSERT INTO test (`user_id`,`date`,`fee`) VALUE('100','2018-09-21',300)";
$result = mysqli_query($link, $sql) or die(mysqli_error($link));
$serv->close($fd);
} public function onClose( $serv, $fd, $from_id ) { }}
// 启动服务器 Start the server
$server = new Server();?>

然后就是执行压测:

[root@07 server]# ab -n 10000 -c 1000 http://127.0.0.1:9501/

Server Software: Server Hostname: 127.0.0.1 Server Port: 9501 Document Path: / Document Length: 0 bytes Concurrency Level: 1000 Time taken for tests: 18.626 seconds <---- Complete requests: 10000 Failed requests: Write errors: 0 Total transferred: 0 bytes HTML transferred: 0 bytes Requests per second: 536.88 [#/sec] (mean) <--- Time per request: 1862.614 [ms] (mean) Time per request: 1.863 [ms] (mean, across all concurrent requests) Transfer rate: 0.00 [Kbytes/sec] received