[Cache] PHP 8.0: JIT > Web/PHP/API

Configuring JIT

In PHP 8.0, JIT is enabled by default, but turned off. Enabling JIT is easy, and only requires minimal INI configuration similar to this:

------php.ini----------   

[php-fpm 경우 php.ini 경로] =>​/etc/php/8.1/fpm/php.ini

;;;;;;;;;;;;;;;;;;;;;;

; Dynamic Extensions ;

;;;;;;;;;;;;;;;;;;;;;;

zend_extension=opcache       <--------  enable!!

[opcache]

opcache.enable=1

opcache.enable_cli=1

opcache.jit_buffer_size=256M

opcache.jit=tracing

opcache.validate_timestamps=1  ;(1=on) check for updated scripts every opcache.revalidate_freq seconds.

opcache.revalidate_freq=60      ; defalut value is 2, if developer mode --> opcache.revalidate_freq=0

--------------------------------

If enabled, OPcache will check for updated scripts every opcache.revalidate_freq seconds.
When this directive is disabled, you must reset OPcache manually via opcache_reset(), opcache_invalidate() or by restarting the Web server for changes to the filesystem to take effect.

How often to check script timestamps for updates, in seconds. 0 will result in OPcache checking for updates on every request. 
If opcache.validate_timestamps is disabled(0), This configuration directive is ignored.

-------- Restart Web Server.. ---------

http://localhost/dashboard/phpinfo.php 

----- Simple OPcache Status Monitor -----------

https://github.com/rlerdorf/opcache-status

copy opcache.php to www(web public folder) in WebServer 

http://localhost/dashboard/opcache.php

 --- end -----

 [Ubuntu Linux + xampp Dir Info] 

WebRoot =>    /opt/lampp/htdocs

php.ini =>      /opt/lampp/etc/php.ini 

------------------------------------

[opcache]

zend_extension=opcache.so

opcache.enable=1

opcache.enable_cli=1

opcache.jit_buffer_size=256M

opcache.jit=tracing

opcache.validate_timestamps=1

opcache.revalidate_freq=60

------------------------------------

systemctl restart xampp