PHP-FPM performance optimization example: method to improve the speed of website dynamic content generation

PHP-FPM Performance Optimization Example: Methods to Improve Website Dynamic Content Generation Speed

Introduction:
With the rapid development of the Internet, website performance optimization has become a problem that cannot be ignored. As a common server-side scripting language, PHP plays an important role in website development. This article will introduce some methods and techniques for optimizing PHP-FPM performance to help increase the speed of website dynamic content generation. At the same time, some specific code examples will be given so that readers can better understand and practice.

1. Adjust PHP-FPM configuration

1. Increase the number of PHP-FPM worker processes: By increasing the number of worker processes, you can make full use of server resources and improve the concurrent processing capabilities of PHP applications. In the PHP-FPM configuration file, this can be achieved by modifying the pm.max_children parameter, for example, modify it to pm.max_children = 50.
2. Adjust the PHP-FPM process management method: PHP-FPM uses the static process management method by default, that is, each process handles a fixed number of requests. You can experiment with the dynamic or ondemand method and choose the appropriate method according to the actual situation. The dynamic method automatically manages and adjusts the number of processes based on the number of requests, while the on-demand method starts or shuts down processes based on actual requests. This can be achieved by modifying the pm parameters, such as pm = dynamic or pm = ondemand.
3. Adjust the PHP-FPM process request waiting time: set the request timeout to avoid unnecessary resource occupation. This can be achieved by modifying the request_terminate_timeout parameter, for example, setting it to 30 seconds.

2. Optimize PHP code

1. Use caching mechanism: minimize repeated database queries and file read and write operations. Use PHP's caching function to store query results and frequently used data in the cache to improve program processing speed. This can be achieved using caching services such as memcached and Redis, as well as PHP's built-in caching functions. For example, use the Memcached extension:

<?php
$memcached = new Memcached();
$memcached->addServer('localhost', 11211);

$key = 'cache_key';
$data = $memcached->get($key);

if (!$data) {
    $data = // 从数据库或者文件中读取数据
    $memcached->set($key, $data, 3600); // 设置缓存有效时间为 1 小时
}

// 使用 $data 进行后续操作
?>

2. Compress output content: By enabling Gzip compression, reduce the size of the transmitted content and improve web page loading speed. This can be achieved by modifying the zlib.output_compression parameter in the PHP configuration file. For example, modify it to zlib.output_compression = On.
3. Optimize database access: Database query is often one of the bottlenecks of website performance. Database query efficiency can be improved by properly optimizing SQL statements, adding indexes, and avoiding excessive data queries. In addition, the caching mechanism is used to store the results of frequent queries in the cache to reduce database I/O operations. For example, use the PHP PDO preprocessing statement:

<?php
$pdo = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');
$statement = $pdo->prepare('SELECT * FROM table WHERE id = :id');
$statement->bindParam(':id', $id);
$statement->execute();

$result = $statement->fetchAll();

// 使用 $result 进行后续操作
?>

4. Reduce file read and write operations: Minimize the read and write operations on disk files. You can store dynamically generated content in static files and Directly read static files through front-end servers such as Nginx to reduce the processing burden of PHP.

Conclusion:
This article introduces some PHP-FPM performance optimization methods and techniques to improve the speed of website dynamic content generation, including adjusting PHP-FPM configuration, optimizing PHP code, etc. At the same time, some specific code examples are given for readers' reference and practice. By properly applying these optimization methods, the performance of the website can be improved and the user experience improved. However, it should be noted that specific optimization methods should be selected and adjusted according to the actual conditions and needs of different websites to avoid over-optimization and causing other problems. I hope this article can provide readers with some help and reference in website performance optimization.

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