用 RoadRunner 加速 Laravel 应用

更新：Laravel 即将支持 RoadRunner，这篇文章的信息已过期，不用看啦

更新：对Laravel支持并不好，不推荐直接使用

RoadRunner是一个用Go语言实现的高性能PSR-7服务器，你没看错，是Go语言实现的。

RoadRunner首先用Go实现了一个高性能的服务器，然后通过goridge IPC把请求转发给多个PHP CLI Worker，Worker会把请求重新封装成PSR-7 Request交给框架进行处理。

娱乐测试

使用siege测试Laravel的Welcome页面，250个并发用户，持续30秒，对比Nginx + FPM和RoadRunner。

Nginx + FPM：

$ siege --no-parser -c 250 -t 30s http://127.0.0.1:3000/  > /dev/null
** SIEGE 4.0.4
** Preparing 250 concurrent users for battle.
The server is now under siege...

Lifting the server siege...
Transactions:                   2032 hits
Availability:                  97.83 %
Elapsed time:                  29.19 secs
Data transferred:               4.51 MB
Response time:                  2.64 secs
Transaction rate:              69.61 trans/sec
Throughput:                     0.15 MB/sec
Concurrency:                  183.50
Successful transactions:        2032
Failed transactions:              45
Longest transaction:           27.34
Shortest transaction:           0.

RoadRunner(4 worker)：

$ siege --no-parser -c 250 -t 30s http://127.0.0.1:8080/  > /dev/null
** SIEGE 4.0.4
** Preparing 250 concurrent users for battle.
The server is now under siege...

Lifting the server siege...
Transactions:                  61417 hits
Availability:                 100.00 %
Elapsed time:                  29.26 secs
Data transferred:             135.95 MB
Response time:                  0.12 secs
Transaction rate:            2099.01 trans/sec
Throughput:                     4.65 MB/sec
Concurrency:                  249.06
Successful transactions:       61417
Failed transactions:               0
Longest transaction:            0.20
Shortest transaction:           0.05

如何加速Laravel应用

RoadRunner安装

RoadRunner已经提供了预编译的执行文件，下载对应平台的版本即可，配置文件可用RoadRunner提供的：Using RoadRunner.

Laravel配置

安装依赖：

composer require spiral/roadrunner zendframework/zend-diactoros symfony/psr-http-message-bridge

在Laravel项目创建一个psr-worker.php，代码修改来自tobias-kuendig：

<?php

require __DIR__ . "/vendor/autoload.php";

use Symfony\Bridge\PsrHttpMessage\Factory\DiactorosFactory;
use Symfony\Bridge\PsrHttpMessage\Factory\HttpFoundationFactory;

$relay = new Spiral\Goridge\StreamRelay(STDIN, STDOUT);
$psr7 = new Spiral\RoadRunner\PSR7Client(new Spiral\RoadRunner\Worker($relay));

$app = require_once __DIR__ . '/bootstrap/app.php';
$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);

while ($req = $psr7->acceptRequest()) {
    try {
        $httpFoundationFactory = new HttpFoundationFactory();

        if (strpos($req->getHeaderLine("content-type"), "application/json") === 0) {
            $body = $req->getBody();
            $parsedBody = json_decode($body, true);
            $req = $req->withParsedBody($parsedBody);
        }
        $symfonyReq = $httpFoundationFactory->createRequest($req);
        $request = Illuminate\Http\Request::createFromBase($symfonyReq);

        $response = $kernel->handle($request);

        $psr7factory = new DiactorosFactory();
        $psr7response = $psr7factory->createResponse($response);
        $psr7->respond($psr7response);
    } catch (\Throwable $e) {
        $psr7->getWorker()->error((string)$e);
    }
}

运行rr serve -v搞定。

其他问题

Issue里提到了POST数据会丢失，简单地测试了一下，没有重现，兼容性方面还需持续关注。

更新1：加了JSON解析，解决POST数据丢失

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