PHP-FPM performance improvement strategies and practice guide

PHP-FPM Performance Improvement Strategy and Practice Guide

Introduction:
With the rapid development of the Internet and the increasing number of website visits, it is important to improve PHP applications performance becomes particularly important. PHP FastCGI Process Manager (PHP-FPM) is a commonly used PHP process manager that can improve the performance of PHP applications through a series of strategies and practices. This article will introduce some PHP-FPM performance improvement strategies, combined with specific code examples, to help readers better understand and practice.

1. Use the process management strategy of PHP-FPM

1. Adjust the process pool size
   Normally, we can optimize PHP-FPM by adjusting the size of the process pool performance. The appropriate process pool size can be set according to the server's hardware configuration and actual pressure situation to make full use of server resources without wasting them.

Sample code:

pm = dynamic
pm.max_children = 50
pm.start_servers = 20
pm.min_spare_servers = 5
pm.max_spare_servers = 35

2. Using dynamic process management mode
   PHP-FPM provides three process management modes: static, dynamic and on-demand. Among them, dynamic mode is the most commonly used one, which can automatically adjust the size of the process pool according to the actual number of concurrent requests, thereby saving server resources.

Sample code:

pm = dynamic
pm.max_children = 50
pm.start_servers = 20
pm.min_spare_servers = 5
pm.max_spare_servers = 35
pm.process_idle_timeout = 10s
pm.max_requests = 1000

3. Adjust the process idle timeout
   In order to prevent invalid processes on the server from occupying resources, you can set the process idle timeout. When a process does not process requests within a specified period of time, PHP-FPM will automatically recycle the process and release resources.

Sample code:

pm.process_idle_timeout = 10s

2. Optimize the configuration parameters of PHP-FPM

1. Adjust the request timeout
   For some time-consuming tasks For requests, you can appropriately increase the request timeout of PHP-FPM to avoid request failure due to timeout.

Sample code:

request_terminate_timeout = 60s

2. Optimize file opening limit
   PHP-FPM will open a file descriptor for each request, which may occur in high concurrency situations The server's file open limit was exceeded. To avoid this problem, you can increase the system's file opening limit.

Sample code:

rlimit_files = 65536

3. Optimize memory allocation
   For PHP-FPM, memory allocation is a relatively time-consuming operation. In order to reduce the number of memory allocations, you can appropriately increase the memory allocation upper limit of PHP-FPM.

Sample code:

pm.max_requests = 1000

3. Practice Guide
Based on the actual situation and combined with the above strategies, the following are some practice guides for improving PHP-FPM performance:

1. Monitor and adjust the size of the PHP-FPM process pool to ensure optimal utilization of server resources;
2. Use the dynamic process management mode to dynamically adjust the size of the process pool according to the actual number of concurrent requests. ;
3. Adjust the process idle timeout, timely recycle and release invalid processes;
4. Adjust the request timeout to avoid request failure due to timeout;
5. Optimize system files Turn on the limit to avoid affecting performance due to exhaustion of file descriptors;
6. Optimize the upper limit of memory allocation and reduce the number of memory allocations.

Conclusion:
Through the introduction of this article, we have learned about some performance improvement strategies of PHP-FPM, combined with specific code examples to help readers better understand and practice. Through reasonable adjustment and optimization, we can maximize the performance advantages of PHP-FPM, improve the performance and response speed of PHP applications, and provide users with a better website experience.

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