WordPress Plugin to list used and standing ready RAM and SQL Queries in Admin-Footer

get_ram_in_footer.php

<?php
/*
Plugin Name: Get RAM in Footer
Plugin URI: http://bueltge.de/
Description: List RAM and SQL Queries in Footer
Version: 0.1
Author: Frank B&uuml;ltge
Author URI: http://bueltge.de/
Last Change: 
*/

function fb_get_ram( $footer_text ) {
	
	$footer_text .= ' &bull; RAM ' . number_format( ( memory_get_peak_usage()/1024/1024 ), 1, ',', '' ) . '/' . WP_MEMORY_LIMIT;
	$footer_text .= ' &bull; SQL ' . $GLOBALS['wpdb'] -> num_queries;
	
	return $footer_text;
}
add_filter( 'admin_footer_text', 'fb_get_ram' );