nytris / boost
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Requires
- php: >=8.1
- asmblah/php-code-shift: ^0.1
- nytris/nytris: ^0.1
- psr/cache: ^1.0
Requires (Dev)
- mockery/mockery: 1.6.11
- phpstan/phpstan: ^1.10
- phpstan/phpstan-mockery: ^1.1
- phpunit/phpunit: ^10.2
- symfony/cache: ^5.4
README
Improves PHP performance, especially when open_basedir
is in effect.
Why?
open_basedir
disables the PHP realpath and stat caches, this library re-implements them in a configurable way.- Even when
open_basedir
is disabled, the native caches are only stored per-process. This library allows them to be stored using a PSR-compliant cache.
Note that for the native filesystem wrapper (when this library is not in use):
- The
stat
cache only keeps a single file, the most recent stat taken. - There is a separate similar one-stat cache for
lstat
results.
When in use, this library caches stats for all files accessed and not only the most recent one.
Usage
Install this package with Composer:
$ composer require nytris/boost
When using Nytris platform (recommended)
Configure Nytris platform:
nytris.config.php
<?php declare(strict_types=1); use Nytris\Boost\BoostPackage; use Nytris\Boot\BootConfig; use Nytris\Boot\PlatformConfig; use Symfony\Component\Cache\Adapter\ApcuAdapter; $bootConfig = new BootConfig(new PlatformConfig(__DIR__ . '/var/cache/nytris/')); $bootConfig->installPackage(new BoostPackage( // Allows changing to avoid collisions if required. realpathCacheKey: 'realpath_key', // Using Symfony Cache adapter as an example. realpathCachePoolFactory: fn (string $cachePath) => new ApcuAdapter( namespace: 'realpath', defaultLifetime: 0 ), // Allows changing to avoid collisions if required. statCacheKey: 'stat_key', // Using Symfony Cache adapter as an example. statCachePoolFactory: fn (string $cachePath) => new ApcuAdapter( namespace: 'stat', defaultLifetime: 0 ), // Whether to hook `clearstatcache(...)`. hookBuiltinFunctions: true )); return $bootConfig;
When using Boost standalone
Load Boost as early as possible in your application, for example a /bootstrap.php
:
<?php declare(strict_types=1); use Nytris\Boost\Boost; use Symfony\Component\Cache\Adapter\ApcuAdapter; require __DIR__ . '/vendor/autoload.php'; // Install Nytris Boost as early as possible so that as many files as possible are cached. if (getenv('ENABLE_NYTRIS_BOOST') === 'yes') { (new Boost( realpathCachePool: new ApcuAdapter( namespace: 'nytris.realpath', defaultLifetime: 0 ), statCachePool: new ApcuAdapter( namespace: 'nytris.stat', defaultLifetime: 0 ), hookBuiltinFunctions: false ))->install(); } ...
Known issues / limitations
Using a filesystem-based cache such as Symfony Cache's FilesystemAdapter
for the realpath or stat caches, for example, may cause infinite recursion,
which can result in a segfault even with Xdebug enabled.
The solution is to avoid using filesystem-based caches for the filesystem data caches, which makes little sense in any case when the purpose of Boost is to reduce or avoid filesystem I/O.
See also
- PHP Code Shift, which is used by this library.