README

Feather - a highly performant SQLite Cache Driver for Kirby

Installation

• unzip master.zip as folder site/plugins/kirby3-sqlite-cachedriver or
• git submodule add https://github.com/bnomei/kirby3-sqlite-cachedriver.git site/plugins/kirby3-sqlite-cachedriver or
• composer require bnomei/kirby3-sqlite-cachedriver

Why

Memcached < File < Redis < SQLite < APCu

Kirby ships with built-in support for File, Memcached, and APCu Cache Drivers. I created a Redis Cache Driver, which is best suited for larger caches. If your hosting does not support Memcached, APCu, or Redis, then your next best choice is this SQLite Cache Driver.

2 is enough and about 35% faster

Let's imagine this typical scenario: During a single pageview, you need to access 100 cached values. Some of them already exist, some don't, some need to be refreshed, and yet others need to be deleted. A File Cache would cause at least 100 filesystem operations in total. Using this SQLite Cache you will have only one file read and one file write per pageview no matter how many values you get, update or remove. ✌️ However, reading and writing data to SQLite is not instantaneous so that it will be at least 35% faster.

Usage

Cache methods

$cache = \Bnomei\SQLiteCache::singleton(); // or
$cache = feather();

$cache->set('key', 'value', $expireInMinutes);
$value = feather()->get('key', $default);

feather()->remove('key');
feather()->flush();

Benchmark

feather()->benchmark(1000);

sqlite : 0.075334072113037
file : 0.11837792396545

ATTENTION: This will create and remove a lot of cache files and sqlite entries

No cache when debugging

When Kirby's global debug config is set to true, the complete plugin cache will be flushed, and no caches will be read. But entries will be created. This will make you live easier – trust me.

How to use Feather with Lapse or Boost

You must set the cache driver for the lapse plugin to sqlite.

site/config/config.php

<?php
return [
    'bnomei.lapse.cache' => ['type' => 'sqlite'],
    'bnomei.boost.cache' => ['type' => 'sqlite'],
    //... other options
];

Setup Content-File Cache

Use Kirby Boost to set up a cache for content files.

Pragmas

The plugin comes with aggressive defaults for SQLite Pragmas to optimize for performance. You can change these in the settings if you need to.

Settings

Dependencies

• PHP SQLite extension. version 3.7.x or better.

Disclaimer

This plugin is provided "as is" with no guarantee. Use it at your own risk and always test it yourself before using it in a production environment. If you find any issues, please create a new issue.

License

MIT

It is discouraged to use this plugin in any project that promotes racism, sexism, homophobia, animal abuse, violence or any other form of hate speech.