OptimizeWP.in - WordPress key optimization config options

wp-config.php

// Limit number of saved revisions to five
define( 'WP_POST_REVISIONS', 5 ); // limit number of revisions to 5

// Control how often WordPress autosaves
define( 'AUTOSAVE_INTERVAL', 160 ); // in seconds

// Empty trash every 7 days
define( 'EMPTY_TRASH_DAYS', 7 ); // empty trash weekly

// Increase memory limit to 128mb for the front-end and 256mb for wp-admin
define('WP_MEMORY_LIMIT', '128M'); // increase limit to 128M
define('WP_MAX_MEMORY_LIMIT','256M'); // increase admin limit to 256M