====== PHP Tuning ======

===== OPCache =====

Konfiguration in /etc/php5/apache2/php.ini:

  opcache php 5.5.x settings, as of
  ; http://www.hostingadvice.com/how-to/enable-php-5-5-opcache-ubuntu-14-04/
  opcache.enable=1
  opcache.memory_consumption=256
  opcache.max_accelerated_files=4000
  opcache_revalidate_freq = 240

Visualisierung/Monitoring: wget https://raw.github.com/rlerdorf/opcache-status/master/opcache.php

===== Redis =====

http://www.kiloroot.com/a-guide-to-owncloud-8-ubuntu-14-04-and-caching-apcu-redis-cache-and-file-locking-oh-my/