[MDL-40415] OPcache support - Moodle Tracker

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Affected Branches:
MOODLE_25_STABLE
Fixed Branches:
MOODLE_26_STABLE
Pull from Repository:
https://github.com/skodak/moodle.git
Pull Master Branch:
w28_~~MDL-40415~~_m26_opcache
Pull Master Diff URL:
https://github.com/skodak/moodle/compare/master...w28_MDL-40415_m26_opcache
Documentation link:
http://docs.moodle.org/26/en/OPcache
Testing Instructions:
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I do not really know what to test here:

1/ configure opcache
2/ try install, upgrade, etc.
3/ run phpunit tests
4/ test web services
5/ do whatever else

Maybe it would be best if every HQ developer installed opcache and used it for master development.

Note: you can disable the opcache easily in your moodle config.php using (you can not enable it there!)

ini_set('opcache.enable', 0);
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I do not really know what to test here: 1/ configure opcache 2/ try install, upgrade, etc. 3/ run phpunit tests 4/ test web services 5/ do whatever else Maybe it would be best if every HQ developer installed opcache and used it for master development. Note: you can disable the opcache easily in your moodle config.php using (you can not enable it there!) ini_set('opcache.enable', 0);

We need:

Why? Because that is the only officially supported opcode cache in PHP 5.5.x (and even earlier versions via PECL).

php.ini settings:

[opcache]

opcache.enable = 1

opcache.memory_consumption = 128

opcache.max_accelerated_files = 4000

opcache.revalidate_freq = 60

; Required for Moodle

opcache.use_cwd = 1

opcache.validate_timestamps = 1

opcache.save_comments = 1

opcache.enable_file_override = 0

; If something does not work in Moodle

;opcache.revalidate_path = 1 ; May fix problems with include paths

; Experimental for Moodle 2.6 and later

;opcache.fast_shutdown = 1

;opcache.enable_cli = 1 ; Speeds up CLI cron

;opcache.load_comments = 0 ; May lower memory use, might not be compatible with addons and other apps.

has a non-specific relationship to

MDL-40554 opcache support (backport of MDL-40415)

has been marked as being related by

MDL-39430 We should discourage/drop support for eaccelerator

MDL-40979 Server clustering improvements

MDL-48182 opcache_reset is not friendly with other applications on same server

Participants:: Damyon Wiese, Daniel Neis Araujo, Dan Poltawski, Eloy Lafuente (stronk7), Frédéric Massart, Helen Foster, Jason Fowler, Martin Dougiamas, Matt Clarkson, Petr Skoda, Ryan Smith

Component watchers:: David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo