PHP 8: Enable JIT (PHP INI option)

[strarsis]

Summary

PHP 8 comes with JIT optimization, but it is disabled by default. For enabling JIT, the opcache.jit_buffer_size option has to be set to some value (e.g. 256M).
Also opcache.jit in /etc/php/8.1/fpm/conf.d/10-opcache.ini must be set from off (apparently an Ubuntu 22.04 LTS default) to tracing (the PHP default, enables JIT).

Apparently there is no option yet for setting these options in Trellis/Ansible, it may be a good addition.

Additional context

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

[swalkinshaw]

This would be great 🚀 . Do you want to contribute the addition @strarsis ?

[strarsis]

@swalkinshaw: Sure! I prepare a PR for this.

[strarsis]

@swalkinshaw: #1505

[swalkinshaw]

closed by #1505