I've been having some out of memory issues. Pretty much there after tuning Apache but I have noticed something odd when analyzing memory usage. php-fpm is running in the background when, as far as I am aware, it has no use when running mod_php. I've had a good google but can't find anything on the subject.
Running Apache/2.2.22 ob Ubuntu 12.04, with mod_php (PHP Version: 5.3.10-1ubuntu3.9 with Suhosin-Patch)
As I understand it, php-fpm has nothing to do with mod_php, so why is it installed (I didn't explicitly install it myself), why is it running in the background, and is there a way I can disable it (and is it safe to do so)?
Here is an except from top
670 mysql 20 0 721m 50m 7728 S 0.0 10.3 0:08.95 /usr/sbin/mysqld 6486 www-data 20 0 310m 34m 3512 S 0.0 7.1 0:00.30 /usr/sbin/apache2 -k start 6489 www-data 20 0 287m 12m 3832 S 0.0 2.4 0:00.03 /usr/sbin/apache2 -k start 6474 root 20 0 284m 11m 6040 S 0.0 2.4 0:00.16 /usr/sbin/apache2 -k start 6484 www-data 20 0 286m 10m 3296 S 0.0 2.2 0:00.02 /usr/sbin/apache2 -k start 692 root 20 0 240m 5332 1560 S 0.0 1.1 0:01.24 php-fpm: master process (/etc/php5/fpm/php-fpm.conf) 1086 root 20 0 92556 5108 3088 S 0.0 1.0 0:07.36 sshd: root@notty 695 www-data 20 0 240m 4492 716 S 0.0 0.9 0:00.00 php-fpm: pool www 696 www-data 20 0 240m 4492 716 S 0.0 0.9 0:00.00 php-fpm: pool www 693 www-data 20 0 240m 4488 716 S 0.0 0.9 0:00.00 php-fpm: pool www 694 www-data 20 0 240m 4488 716 S 0.0 0.9 0:00.00 php-fpm: pool www Admittedly, they are not taking up a huge amount of RAM (collectively ~5%), but I would rather free that up if I can...
I have confirmed I am running mod_php, phpinfo says: Apache 2.0 Handler /etc/php5/apache2/php.ini
If you need any further info, please let me know.
