When I run composer update command in shell, composer displays warning like bellow.
You are running composer with xdebug enabled. This has a major impact on runtime performance. See https://getcomposer.org/xdebug
And takes too long time to process.
I already go to https://getcomposer.org/xdebug reference and tried to disable xdebug option in php.ini file. But I couldn't found it.
This is the real reference to disable xdebug option in php.ini file.
First, check what kind of php.ini file is used.
php -i | grep "php.ini"
Search zend_extension option and comment it using ';(semicolon)'.
;zend_extension = "/path/to/my/xdebug.so"
If you can't find this option in php.ini file, maybe it is in conf.d folder. File name is like '20-xdebug.ini'. Open this file and comment it.