Excessive resource usage on cloud server
I have updated my vanilla forum to 2.5 and upgrade to VPS to a web cloud server.
But then I receive lots of notification (14 warnings in 1 hour) from the server hosting company as followings:
Resource: Virtual Memory Size
Exceeded: 562 > 512 (MB)
Command Line: /opt/cpanel/ea-php70/root/usr/bin/php-cgi /home/xxxxxx/public_html/community/index.php
Our cloud server contains 2GB RAM and my forum is not really a large traffic forum.
Seems one people access the forum, it will consume 512MB.
It is nonsense if the forum can just hold 4 people with 2GB RAM.
Is 2GB RAM enough to hold vanilla forum?
Or is there any methods to minimize or force down the usage on RAM?
The server hosting company suggests me to review the index.php of vanilla forum.
But I haven't do much edit on the index.php.
Do anyone know what is the problem and how to solve it?