My centos 6.7 server has only my php and mysql based websites using nginx web server and virtualmin (no wordpress or external scripts/software).
I installed PHP with :
yum --enablerepo=remi,remi-php56 install -y php-mysqlnd php-fpm
yum installed dependencies like php-commom, php-pdo etc.
I checked the running processes in my server using virtualmin.
each php-fpm: pool www process is using around 400MB memory.
There are more than 20 extensions in etc/php.d directory.
I commented most of the extensions in etc/php.d directory.
I checked the installed extensions using
<?php
print_r(get_loaded_extensions());
?>
[0] => Core
[1] => date
[2] => ereg
[3] => libxml
[4] => openssl
[5] => pcre
[6] => zlib
[7] => filter
[8] => hash
[9] => Reflection
[10] => SPL
[11] => session
[12] => standard
[13] => cgi-fcgi
[14] => curl
[15] => ftp
[16] => mysqlnd
[17] => PDO
[18] => mysql
[19] => pdo_mysql
[20] => json
[21] => mhash
after restarting php-fpm and nginx, each php-fpm: pool www process is using around 200MB memory.
Is it possible to disable some more extensions like ereg, libxml, Reflection, SPL, mhash etc ?
I hope this will reduce some more RAM usage by each of php-fpm: pool www processes.
Please suggest. Thanks.
