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how to enable PHP Opcache JIT cuz “opcache.jit” is missing in php.ini

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  • May 18, 2024 at 4:46 am #24903
    Lauren
    Guest

    I have checked php.ini and these options don’t exist anywhere in PHP 8.3

    https://php.watch/versions/8.0/JIT

    opcache.jit_buffer_size=256M
opcache.jit_debug=1
opcache.jit=tracing
    May 18, 2024 at 4:50 am #24904
    Jacob
    Guest

    https://medium.com/@edouard.courty/make-your-php-8-apps-twice-as-fast-opcache-jit-8d3542276595

    https://stitcher.io/blog/php-8-jit-setup

    everybody talking like these options exist but they don’t???

    May 18, 2024 at 4:53 am #24905
    Samantha
    Guest

    I’m guessing it depends on how you installed PHP and your server packages. But it could be in the opcache.ini or other files depending on your configuration.

    May 18, 2024 at 5:02 am #24906
    Hannah
    Guest

    I spun up a DigitalOcean 24.04 droplet.

    The settings are in: /etc/php/8.3/fpm/conf.d/10-opcache.ini

    ; configuration for php opcache module
; priority=10
zend_extension=opcache.so
opcache.jit=off

    The buffer setting is not there as you can see. But opcache.jit is there at least.

    May 18, 2024 at 5:09 am #24907
    Brian
    Guest

    so, not /etc/php/8.3/mods-available/opcache.ini

    ???

    https://forum.cleavr.io/t/assistance-required-enabling-jit-on-php-8-3/1170

    May 18, 2024 at 5:13 am #24908
    Daniel
    Guest

    Well I think

    /etc/php/8.3/fpm/conf.d/10-opcache.ini

    is just a symlink to:

    /etc/php/8.3/mods-available/opcache.ini

    so it’s the same hardfile in the end, the 2nd path is probably easier.

    May 18, 2024 at 6:07 am #24909
    Stephen
    Guest

    The symlinks are how Debian/Ubuntu enable the PHP extensions I believe… instead of commenting or uncommenting extensions in php.ini then the symlinks are placed in the conf.d directory and that makes PHP-FPM load them (enabled).

    If you run:

    sudo phpdismod opcache

    then it will delete this symlink: /etc/php/8.3/fpm/conf.d/10-opcache.ini

    and vice versa if you run:

    sudo phpenmod opcache

    May 18, 2024 at 6:09 am #24910
    Andrew
    Guest

    Related reading

    How to Enable or Disable PHP Modules on Ubuntu

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