php-fpm performance monitoring and tuning strategies

php-fpm performance monitoring and tuning strategy

Introduction:
With the development of the Internet, PHP, as an efficient server-side scripting language, is widely used in the field of Web development. As a solution for the PHP running environment, php-fpm has high concurrent processing capabilities. However, in the case of high concurrency, php-fpm will face performance bottlenecks. This article will introduce the performance monitoring and tuning strategies of php-fpm, aiming to improve the performance and stability of php-fpm.

1. php-fpm performance monitoring

1.1 The top command monitors the php-fpm process

You can use the top command to monitor the CPU and memory consumption of the php-fpm process. Through the top command, you can view the status information of the php-fpm process in real time, such as process ID, CPU usage, memory usage, etc. You can use the command "top -p [pid]" to monitor the specified php-fpm process.

Sample code:

top -p 1234

1.2 php-fpm status page

php-fpm provides a status page that can be accessed through a browser to view php-fpm in real time Operating status. Through this page, you can obtain information such as the number of connections, request processing, and process pool status of php-fpm. You can add the following configuration to the configuration file of php-fpm to enable this feature:

pm.status_path = /status

Sample code:

http://localhost/status

1.3 Use the swoole extension for performance monitoring

The swoole extension is A high-performance asynchronous network framework that can be used to develop high-performance PHP applications. The swoole extension provides rich functionality, including performance monitoring of php-fpm. You can use swoole's Server component to monitor php-fpm's request processing time, number of connections, request volume and other information.

Sample code:

<?php
$server = new swoole_http_server("0.0.0.0", 9501);

$server->on('request', function ($request, $response) {
    $response->header("Content-Type", "text/plain");
    $response->end("Hello World
");
});

$server->on('start', function($server) {
    swoole_timer_tick(1000, function() use ($server){
        $stats = $server->stats();
        echo "Active Connections: " . $stats['connection_num'] . "
";
        echo "Total Requests: " . $stats['request_count'] . "
";
    });
});

$server->start();
?>

2. php-fpm performance tuning

2.1 Adjust the number of php-fpm processes

The performance and performance of php-fpm The number of processes has a lot to do with it. The number of php-fpm processes can be adjusted according to the server configuration and actual needs. In the configuration file of php-fpm, you can adjust the number of processes by modifying the following parameters:

pm.max_children = 50            # 进程池中允许的最大子进程数
pm.start_servers = 20           # 启动时创建的子进程数
pm.min_spare_servers = 10       # 最小空闲子进程数
pm.max_spare_servers = 30       # 最大空闲子进程数

2.2 Adjust the process pool model of php-fpm

php-fpm supports multiple process pool models , you can choose the appropriate model according to your needs. In the configuration file of php-fpm, you can adjust the process pool model by modifying the following parameters:

pm = dynamic                    # 动态进程池模型
pm = static                     # 静态进程池模型
pm = ondemand                   # 按需进程池模型

2.3 Adjust the request timeout of php-fpm

The performance of php-fpm is also related to the request related to the timeout period. The request timeout of php-fpm can be adjusted according to the actual situation. In the configuration file of php-fpm, you can adjust the request timeout by modifying the following parameters:

request_terminate_timeout = 60  # 请求处理超时时间，单位为秒
request_slowlog_timeout = 10    # 请求慢日志超时时间，单位为秒

2.4 Adjust the memory limit of php-fpm

The performance of php-fpm is also related to the memory Depends on usage. The memory limit of php-fpm can be adjusted based on the server's configuration and actual needs. In the configuration file of php-fpm, you can adjust the memory limit by modifying the following parameters:

pm.max_requests = 1000          # 单个子进程处理的最大请求数
php_admin_value[memory_limit] = 128M   # 单个子进程的内存限制

Conclusion:
The performance of php-fpm can be improved by monitoring and tuning the performance of php-fpm and stability. In terms of monitoring, you can use the top command, status page or swoole extension to view the running status of php-fpm in real time. In terms of tuning, parameters such as the number of processes, process pool model, request timeout, and memory limits can be adjusted to optimize the performance of php-fpm. I hope this article will be helpful to the performance monitoring and tuning of php-fpm.

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