Lowering memory use for worker MPM

[lth]

I've recently moved from the prefork MPM to the worker MPM because there was a process limit imposed by the VPS that I was hitting.

However, contrary to what I've been hearing, memory usage increased. Most of them belong to php-cgi processes. Is there something I'm doing wrong?

I have quite a few domains (ie. vhosts) on the server, so a possibility might be because there's a different fcgi starter script for each domain?