benchmark

Complexity

Total Complexity

12

Size/Duplication

Total Lines	98
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

11 Methods

Rating	Name	Duplication	Size	Complexity
A	hp$0 ➔ consume()	0	3	1
A	hp$0 ➔ __construct()	0	3	2
	run()	0	12	?
A	hp$0 ➔ getConnection()	0	10	1
	__construct()	0	40	?
	produce()	0	8	?
	consume()	0	3	?
A	hp$0 ➔ onUpdate()	0	5	2
A	hp$0 ➔ produce()	0	8	2
A	hp$0 ➔ run()	0	12	3
	getConnection()	0	10	?

<?php
declare(strict_types=1);
error_reporting(E_ALL);
date_default_timezone_set('UTC');
include __DIR__ . '/../vendor/autoload.php';

use Doctrine\DBAL\Connection;
use Doctrine\DBAL\DriverManager;
use MySQLReplication\Config\ConfigBuilder;
use MySQLReplication\Definitions\ConstEventType;
use MySQLReplication\Event\DTO\UpdateRowsDTO;
use MySQLReplication\Event\EventSubscribers;
use MySQLReplication\MySQLReplicationFactory;

/**
 * Simple benchmark to test how fast events are consumed
 */
class benchmark
{
    private const DB_NAME = 'mysqlreplication_test';
    private const DB_USER = 'root';
    private const DB_PASS = 'root';
    private const DB_HOST = '127.0.0.1';
    private const DB_PORT = 3306;

    private $binLogStream;

    public function __construct()
    {
        $conn = $this->getConnection();
        $conn->exec('DROP DATABASE IF EXISTS ' . self::DB_NAME);

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('CREATE DATABASE ' . self::DB_NAME);

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('USE ' . self::DB_NAME);

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('CREATE TABLE test (i INT) ENGINE = MEMORY');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('INSERT INTO test VALUES(1)');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('CREATE TABLE test2 (i INT) ENGINE = MEMORY');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('INSERT INTO test2 VALUES(1)');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $conn->exec('RESET MASTER');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        $this->binLogStream = new MySQLReplicationFactory(
            (new ConfigBuilder())
                ->withUser(self::DB_USER)
                ->withPassword(self::DB_PASS)
                ->withHost(self::DB_HOST)
                ->withPort(self::DB_PORT)
                ->withEventsOnly([ConstEventType::UPDATE_ROWS_EVENT_V2])
                ->withSlaveId(9999)
                ->withDatabasesOnly([self::DB_NAME])
                ->build()
        );

        $this->binLogStream->registerSubscriber(
            new  class extends EventSubscribers
            {
                private $start;
                private $counter = 0;

                public function __construct()
                {
                    $this->start = microtime(true);
                }

                public function onUpdate(UpdateRowsDTO $event): void
                {
                    ++$this->counter;
                    if (0 === ($this->counter % 1000)) {
                        echo ((int)($this->counter / (microtime(true) - $this->start)) . ' event by seconds (' . $this->counter . ' total)') . PHP_EOL;
                    }
                }
            }
        );
    }

    private function getConnection(): Connection
    {
        return DriverManager::getConnection(
            [
                'user' => self::DB_USER,
                'password' => self::DB_PASS,
                'host' => self::DB_HOST,
                'port' => self::DB_PORT,
                'driver' => 'pdo_mysql',
                'dbname' => self::DB_NAME
            ]
        );
    }

    public function run(): void
    {
        $pid = pcntl_fork();
        if ($pid === -1) {
            throw new InvalidArgumentException('Could not fork');
        }

        if ($pid) {
            $this->consume();
            pcntl_wait($status);
        } else {
            $this->produce();
        }
    }

    private function consume(): void
    {
        $this->binLogStream->run();
    }

    private function produce(): void
    {
        $conn = $this->getConnection();

        echo 'Start insert data' . PHP_EOL;
        while (1) {
            $conn->exec('UPDATE  test SET i = i + 1;');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

            $conn->exec('UPDATE test2 SET i = i + 1;');

The function Doctrine\DBAL\Connection::exec() has been deprecated: This API is deprecated and will be removed after 2022

        }
    }
}

(new benchmark())->run();