PHP7开启OPcache和Swoole哪个提升更大？性能的提升对比
这次测试咱们采用Laravel框架。laravel作为最热门的php框架之一，广受认可与欢迎。同时由于集成度很高，每次运行都加载了大量文件，加之使用了大量的闭包、魔术方法，导致laravel框架很重，并发性能极差。OPcache和Swoole都是php的扩展，这次旨在比较这两个扩展分别开启后对Laravel应用的加速效果。
前期准备
测试所用的主机为虚拟机，虚拟机配置在双核4GB的个人电脑中。虚拟机系统为linux，http服务器采用nginx，用lnmp脚本安装nginx、mysql、php。Laravel框架为7.X版本。
- 配置站点，在nginx的server块中配置虚拟主机
server{
listen 80;
root "/vagrant/www/laravel7/public";
server_name test.laravel.com;
index index.html index.php;
location / {
try_files $uri $uri/ /index.php?$args;
}
location ~ \.php$ {
fastcgi_pass unix:/tmp/php-cgi.sock;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
编辑/etc/hosts文件，在新行添加 127.0.0.1 test.laravel.com
- 打开项目，新建控制器TestController，在里面新建一个test方法：
<?php
namespace App\Http\Controllers;
class TestController extends Controller
{
public function test()
{
return 123;
}
}
- 在routes/api.php中注册一个路由：
Route::get('test', 'TestController@test');
在app/Http/Kernel文件中，关掉频率限制中间件throttle。
不开启opcache和laravel
修改php-fpm.conf文件，修改pm和pm.max_children 配置，pm设置为static，pm.max_children设置为50，以获得较好的并发性能。
[www]
listen = /tmp/php-cgi.sock
listen.backlog = -1
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = static
pm.max_children = 50
pm.start_servers = 10
pm.min_spare_servers = 10
pm.max_spare_servers = 20
request_terminate_timeout = 100
request_slowlog_timeout = 0
slowlog = var/log/slow.log
- 重启fpm后用ab压测：ab -n 1000 -c 100 http://test.laravel.com/api/test
Server Software: nginx Server Hostname: test.laravel.com Server Port: 80 Document Path: /api/test Document Length: 3 bytes Concurrency Level: 100 Time taken for tests: 148.306 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 253000 bytes HTML transferred: 3000 bytes Requests per second: 6.74 [#/sec] (mean) Time per request: 14830.553 [ms] (mean) Time per request: 148.306 [ms] (mean, across all concurrent requests) Transfer rate: 1.67 [Kbytes/sec] received
此时的并发大约为为 7 qps
（3）开启OPcache
在配置文件php.ini文件中开启opcache
zend_extension="opcache.so"
opcache.enable=1
opcache.memory_consumption=128
opcache.max_accelerated_files=10000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
opcache.interned_strings_buffer=8
- 重启fpm后，用ab压测：ab -n 1000 -c 100 http://test.laravel.com/api/test
Server Software: nginx
Server Hostname: test.laravel.com
Server Port: 80
Document Path: /api/test
Document Length: 4 bytes
Concurrency Level: 100
Time taken for tests: 11.006 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 254000 bytes
HTML transferred: 4000 bytes
Requests per second: 90.86 [#/sec] (mean)
Time per request: 1100.590 [ms] (mean)
Time per request: 11.006 [ms] (mean, across all concurrent requests)
Transfer rate: 22.54 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 4.3 0 16
Processing: 409 1069 152.0 1092 1414
Waiting: 408 1069 152.0 1092 1414
Total: 424 1070 149.6 1092 1414
Percentage of the requests served within a certain time (ms)
50% 1092
66% 1126
75% 1149
80% 1162
90% 1203
95% 1242
98% 1280
99% 1309
100% 1414 (longest request)
此时的达到了 90qps，性能是未开启时的 10 倍以上！。
（4）使用swoole加速包
在项目目录下运行composer命令安装；在nginx的配置文件中配置，将请求转发到swoole监听的端口。
用 ab 压测 ： ab -n 1000 -c 100 http://test.laravel.com/api/test
Server Software: nginx Server Hostname: test.laravel.com Server Port: 80 Document Path: /api/test Document Length: 4 bytes Concurrency Level: 100 Time taken for tests: 1.158 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 225000 bytes HTML transferred: 4000 bytes Requests per second: 863.46 [#/sec] (mean) Time per request: 115.813 [ms] (mean) Time per request: 1.158 [ms] (mean, across all concurrent requests) Transfer rate: 189.72 [Kbytes/sec] received
速度起飞！达到了800qps！
也就是一百多倍？
(4)总结
当然这只是一个比较简单的测试，但是总的来说opcache扩展和swoole扩展对php脚本性能的提升还是很明显的。
