作者：Totn
来源：SegmentFault 思否社区
测试Octane+Swoole提升程度
写在前面
laravel项目使用octane+swoole对于性能的提升非常显著（220%+的QPS提升），但还是难以与静态语言抗衡。
测试过程
硬件：虚拟机VirtualBox, 1核2G， CPU为i5-8400;
系统: Centos7 + 宝塔;
php环境：启用opcache, session启用memcached缓存，文件缓存启用redis;
部署项目及引入octane
composer create-project laravel/laravel octance.sw
cd ./octance.sw
## 引入octane
composer require laravel/octane
## 安装octane
php artisan octane:install
安装这一步使用RoadRunner出了很多问题，最后跑起来也没能正常访问，遂放弃使用RR;
使用swoole倒是非常简单，宝塔面板中装好swoole扩展，octane:install时选swoole直接完成。
对laravel进行普通的生产环境优化；
composer install --no-dev
## 设置配置文件，关掉debug
vi .env
APP_ENV=production
APP_DEBUG=false
## :wq保存
## 执行优化
composer dump-autoload -o
php artisan optimize
到中件间文件app/Http/Kernel.php中注释掉api下的throttle中间件，以免ab压测时报429的错误
测试以下内容：在控制器中返回一个0-100的随机数，控制器代码如下
function random()
{
$i = mt_rand(0, 100);
return response()->json([
'code' => 0,
'msg' => 'random: ' . str_pad($i, 3, '0', STR_PAD_LEFT)
]);
}
1， 压测php-fpm
配置Nginx转发到php-fpm；然后进行ab压测，一次压测结果如下：
.\ab -n2000 -c8 http://octane.sw/api/random
This is ApacheBench, Version 2.3 <$Revision: 1879490 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking octane.sw (be patient)
Completed 200 requests
Completed 400 requests
Completed 600 requests
Completed 800 requests
Completed 1000 requests
Completed 1200 requests
Completed 1400 requests
Completed 1600 requests
Completed 1800 requests
Completed 2000 requests
Finished 2000 requests
Server Software: nginx
Server Hostname: octane.sw
Server Port: 80
Document Path: /api/random
Document Length: 30 bytes
Concurrency Level: 8
Time taken for tests: 17.194 seconds
Complete requests: 2000
Failed requests: 0
Total transferred: 512000 bytes
HTML transferred: 60000 bytes
Requests per second: 116.32 [#/sec] (mean)
Time per request: 68.777 [ms] (mean)
Time per request: 8.597 [ms] (mean, across all concurrent requests)
Transfer rate: 29.08 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.4 0 5
Processing: 7 68 68.2 53 641
Waiting: 7 68 68.2 53 641
Total: 7 69 68.2 53 641
Percentage of the requests served within a certain time (ms)
50% 53
66% 59
75% 61
80% 64
90% 95
95% 243
98% 303
99% 346
100% 641 (longest request)
测试结果可见，普通优化下，php8的php-fpm能提供110+的QPS;
2, 压测octane+swoole
启动工作进程：
php /path/octane.sw/artisan octane:start --host="0.0.0.0" --port=8080 --workers=4 --max-requests=10000 --task-workers=10
并加入到Supervisor进程守护中；
配置nginx，将所有请求都转发到127.0.0.1:8080
进行ab压测，一次压测结果如下：
.\ab -n2000 -c8 http://octane.sw/api/random
This is ApacheBench, Version 2.3 <$Revision: 1879490 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking octane.sw (be patient)
Completed 200 requests
Completed 400 requests
Completed 600 requests
Completed 800 requests
Completed 1000 requests
Completed 1200 requests
Completed 1400 requests
Completed 1600 requests
Completed 1800 requests
Completed 2000 requests
Finished 2000 requests
Server Software: nginx
Server Hostname: octane.sw
Server Port: 80
Document Path: /api/random
Document Length: 30 bytes
Concurrency Level: 8
Time taken for tests: 5.234 seconds
Complete requests: 2000
Failed requests: 0
Total transferred: 592000 bytes
HTML transferred: 60000 bytes
Requests per second: 382.10 [#/sec] (mean)
Time per request: 20.937 [ms] (mean)
Time per request: 2.617 [ms] (mean, across all concurrent requests)
Transfer rate: 110.45 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.7 0 11
Processing: 4 21 12.4 18 118
Waiting: 3 21 12.4 18 118
Total: 4 21 12.5 18 118
Percentage of the requests served within a certain time (ms)
50% 18
66% 21
75% 23
80% 25
90% 32
95% 43
98% 65
99% 76
100% 118 (longest request)
对octane+swoole的压测的QPS为380+
结论：QPS从110+提升到380+，提升幅度达到220%+，提升很明显，但却低于期望。官方所宣称的QPS高达2000+，明显不能直接套用于生产环境。同时，如果按QPS提升程度来算，重构代码只是为了200%+的提升是否值得也需要好好考虑一下。
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