今天公司內訓的簡報摘錄。 研究 Swoole 多年，也確實在上線環境正式運行很久且穩定，所以與同事分享點滴與技巧。 除了一點範例程式外，分享著重的是【架構】差異，延伸出去再與 Nginx/PHP, Node 及 Go 進行一些比較。 主要是提出幾個問題，希望引發思考： ➊ 很多人都說 Swoole 快，是哪裡快？(其實我覺得網路上的資訊不夠全面，講得也不一定為真) ➋ 猜想 Nginx/PHP, Swoole, Node, Go 基礎效能比較？還能最佳化嗎？何處著手？ ➌ 其他。

1. SWOOLE PHP
Ant
2018-03-30

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Introduction

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Swoole is a C extension for PHP
Apache-2.0
+ =

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Ref: https://www.swoole.co.uk/

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Ref: https://www.swoole.co.uk/

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Architecture

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Ref: https://www.yanshuo.me/p/11565
Apache / Nginx + PHP-FPM Swoole

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Ref: https://www.spaceotechnologies.com/why-node-js-best-option-develop-chat-based-mobile-application/
Multi-threaded (Java) Single-thread / Event loop (Node)

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Ref: http://slides.com/albertcht/swoole-redefine-php#/3/6
Multi-threaded (Java) Nginx with PHP-FPM

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Ref: http://slides.com/albertcht/swoole-redefine-php#/3/6
Multi-threaded (Java) Nginx with PHP-FPM
PHP-FPM is PHP FastCGI Process Manager

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
PHP Files
Nginx with PHP-FPM

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
PHP Files
Nginx with PHP-FPM Swoole
PHP Files

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Example

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Swoole Installation
Ref: https://www.swoole.co.uk/

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Swoole HTTP Server
Ref: https://www.swoole.co.uk/

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Swoole WebSocket Server
Ref: https://www.swoole.co.uk/

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Swoole TCP Server
Ref: https://www.swoole.co.uk/

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Swoole TCP Client
Ref: https://www.swoole.co.uk/

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Swoole Async
Ref: https://www.swoole.co.uk/

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Ref: https://www.swoole.co.uk/
Swoole Task

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Performance

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Performance
Demo

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Connection pool

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Ref: https://docs.oracle.com/cd/B28359_01/appdev.111/b28395/oci09adv.htm#LNOCI87728
Connection pool
➊ Reduces the number of times new connection objects are created.
➋ Promotes connection object reuse.
➌ Quickens the process of getting a connection.
➍ Minimizes the number of stale connections.

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconnDBconn

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconn TaskDBconn

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconn Task
vendor/autoload.php
DBconn

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Async

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Ref: https://wiki.swoole.com/wiki/page/517.html
Async MySQL Client
$db = new swoole_mysql;
$server = array(
'host' => '192.168.1.1',
'port' => 3306,
'user' => 'test',
'password' => 'test',
'database' => 'test',
'charset' => 'utf8',
);
$db->connect($server, function ($db, $r) {
if ($r === false) {
var_dump($db->connect_errno, $db->connect_error);
die;
}
$db->query('show tables', function(swoole_mysql $db, $r) {
if ($r === false)
{
var_dump($db->error, $db->errno);
}
elseif ($r === true )
{
var_dump($db->affected_rows, $db->insert_id);
}
var_dump($r);
$db->close();
});
});

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Memory leaking !!

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Memory leaking !!

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Ref: https://github.com/guzzle/guzzle/issues/1407

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Coroutine

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Ref: https://wiki.swoole.com/wiki/page/604.html
Coroutine: HTTP Client
$httpclient = new SwooleCoroutineHttpClient('127.0.0.1', 80);
$httpclient->setHeaders(['Host' => "api.mp.qq.com"]);
$httpclient->set([ 'timeout' => 1]);
$httpclient->setDefer();
$httpclient->get('/');
// to do something
$http_res = $httpclient->recv();

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Why not Go(lang)

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Why not Go(lang)
➊ Not most developers in company are familiar with Go(lang).
➋ Not so many Go(lang) developers in Taiwan (future?).
➌ Training time.
➍ Swoole performance is close to Go(lang) in some cases.

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