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Informations about the package cakephp-preloader
CakePHP Preloader
An OPCache preloader for CakePHP.
Reference: https://www.php.net/manual/en/opcache.preloading.php
This package is meant to provide an easy way for CakePHP application developers to generate preload files. Goals:
- Generate an OPCache preloader with a simple command.
- Allow optionally loading additional resources such as CakePHP plugins, userland app, and composer packages.
- Provide a simplistic API for writing a custom preloader.
For an alternative approach, checkout DarkGhostHunter/Preloader.
For an OPCache UI, checkout amnuts/opcache-gui.
The current release is for CakePHP 5 and PHP 8.1, see previous releases for older versions of CakePHP and PHP.
| Version | Branch | Cake Version | PHP Version |
|---|---|---|---|
| 1.* | main | ^5.0 | ^8.1 |
| 0.* | v0 | ^4.2 | ^7.4 |
Installation
You can install this plugin into your CakePHP application using composer.
The recommended way to install composer packages is:
Next, load the plugin:
Or via manual steps in the CakePHP plugin documentation.
Usage
The easiest way to use CakePreloader is via the console command. This command can easily be included as part of your applications build process.
You may also load configurations from a config/preloader_config.php file. Please note, command line arguments take
precedence. See assets/preloader_config.php for a sample configuration file. If you
prefer handling configurations another way read the CakePHP documentation on
loading configuration files.
Examples:
Default loads in CakePHP core files excluding TestSuite, Console, Command, and Shell namespaces. The preload file is
written to ROOT . DS . 'preload.php':
Include a list of composer packages:
Include your APP code:
Include all your projects plugins:
Include a list of your projects plugins:
Before Write Event
You can extend functionality by listening for the CakePreloader.beforeWrite event. This is dispatched just before
your preloader file is written.
For more on events, read the CakePHP Events System documentation.
Preloader Class
You can customize your OPCache Preloader using the same class used by the console command. Preloader uses a port of CakePHP 4.x's Filesystem class under the hood.
Performance:
Obviously, these types of benchmarks should be taken with a bit of a gain of salt. I benchmarked this using apache
bench with this project here: https://github.com/mixerapi/demo which is a dockerized REST API
(LEMP stack on alpine + php-fpm 8.0). CakePHP DEBUG was set to false.
Note: opcache.preload_user=root and opcache.preload=/srv/app/preload.php were disabled for the no preload run.
| Type | JSON View (no db) | JSON View (db select) |
|---|---|---|
| OPCache Only | 892.69 [#/sec] (mean) | 805.29 [#/sec] (mean) |
| OPCache Preload (default) | 1149.08 [#/sec] (mean) | 976.30 [#/sec] (mean) |
This is 28% more requests per second for JSON responses and 21% more requests per second with JSON + simple SQL select when OPCache Preload is enabled.
Tests / Analysis
Test Suite:
Test Suite + Static Analysis:
