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Enable PHP 5.5 Opcache on Ubuntu 14.04 with Nginx and PHP-FPM

Posted on May 15, 2014

Making the switch from APC to Opcache now that it’s standard with Ubuntu 14.04. All the tutorials seemed to be on Apache so thought I’d share what I did. The first change and restarting php I believe is all you need to do while the other changes are for performance and will vary based on your needs. If others have recommendations or additional advice please pipe in!

sudo vim /etc/php5/fpm/php.ini

Change: ;opcache.enable=0 to opcache.enable=1

Change: ;opcache.memory_consumption=64 to opcache.memory_consumption=128

Change: ;opcache.max_accelerated_files=2000 to opcache.max_accelerated_files=4000

Change: ;opcache.revalidate_freq=2 to opcache.revalidate_freq=60

Then restart: sudo service php5-fpm restart



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hi @asb , i have one question, should that configuration suite small droplets like 512 as well?

and thx for the info by the way @chris324769

Thanks for the tip! Here’s the full list of configuration options you can tweak: <br> <br>http://www.php.net/manual/en/opcache.configuration.php <br> <br>Anyone else have any recommendations? <br>

Yep, take a look ( will take this down after problem is resolved ) http://www.waxdev.com/opcache.php

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