Optimize php-fpm performance to improve website speed

Optimize php-fpm performance to improve website speed

With the rapid development of the Internet, website performance has become the focus of users. When optimizing website performance, the execution efficiency of PHP scripts is often one of the key factors. This article will share some common methods for optimizing php-fpm performance and illustrate them with code examples.

1. Adjust the configuration of php-fpm

php-fpm is the process manager for PHP scripts. PHP performance can be optimized by adjusting its configuration.

First, you can increase the size of the php-fpm process pool, which can be achieved by modifying the pm.max_children parameter in the php-fpm.conf file. This parameter indicates the maximum number of processes allowed in each process pool. According to the server's resource conditions and access volume, this value can be increased appropriately to improve the concurrent processing capability of php-fpm.

Secondly, you can adjust the idle timeout of the php-fpm process by modifying the pm.max_spare_servers and pm.min_spare_servers parameters in the php-fpm.conf file. These two parameters represent the minimum and maximum number of idle processes in the php-fpm process pool respectively. According to the load of the server, these two values ​​​​can be adjusted appropriately to reduce the waste of resources.

2. Enable PHP's caching mechanism

PHP's caching mechanism can cache compiled scripts, reduce the compilation time for each request, and improve performance. Commonly used PHP caching mechanisms include APC, OPcache, etc.

Taking OPcache as an example, you can open OPcache by modifying the configuration in the php.ini file:

[opcache]
opcache.enable=1
opcache.enable_cli=1
opcache.memory_consumption=256
opcache.max_accelerated_files=20000
opcache.revalidate_freq=2
opcache.fast_shutdown=1

Among them, opcache.enable indicates whether to enable OPcache, and opcache.enable_cli indicates whether to allow the command Open OPcache in line mode, opcache.memory_consumption indicates the memory size that can be used to store compiled scripts, opcache.max_accelerated_files indicates the maximum number of compiled script files that can be stored, opcache.revalidate_freq indicates the frequency of checking whether script files are updated, opcache. fast_shutdown indicates whether to release resources immediately when the request ends.

3. Reduce IO operations

IO operations are often a factor affecting php performance, so reducing IO operations is very important to improve php-fpm performance. The following are some methods to reduce IO operations:

• Try to use memory cache to replace file read and write operations, such as using Redis or Memcached to cache data.
• Use database connection pool to avoid frequent database connection and shutdown operations.
• Store static resources such as images, CSS, JavaScript, etc. on CDN to reduce the IO load on the server.
• Use a cache server such as Varnish to cache static pages and reduce the number of dynamic page generation.

4. Optimize database access

The database is the core data storage of the website. Optimizing the access performance of the database can also improve the performance of the entire website. The following are some methods to optimize database access:

• Using appropriate indexes can speed up data query operations.
• Insert and update data in batches to reduce the number of database accesses.
• Use connection pool to avoid frequent database connection and shutdown operations.
• Use database cache to speed up reading of commonly used data.

To sum up, optimizing php-fpm performance can improve the access speed of the website. By adjusting the configuration of php-fpm, turning on PHP's caching mechanism, reducing IO operations and optimizing database access, the processing capabilities and response speed of php-fpm can be effectively improved. In actual operation, these optimization methods can be comprehensively considered based on the server's resource situation and access volume, and performance optimization can be performed in conjunction with specific code logic.

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