Very high ram use in Ubuntu compare to debian

hi. I had a Debian 7x64 server that had some security issues and because I’m more familiar with Ubuntu turned to Ubuntu 12.04x64. both my droplets was 512 and served one WordPress site with apache/mysql

In Debian my ram use was basically between 130 and 350 mb and never passed 400mb In Ubuntu my rame use is between 179 and 470 and even swap use more ram

is this normal? because the website is new and only have 100 500 visitor/view a day.

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Thanks, I was getting 500s using tcp that went away after switching to a socket connection.

@forestmars+docker: It does not <em>need</em> to listen on a socket however it is recommended to bind it to a socker instead of a TCP port to avoid TCP overhead and accidentally allowing outer access to php5-fpm.

What’s the reason fpm needs to listen on a unix socket not a tcp port?