Hi,
the httpd process on my size is very big, about 20mb... consider that there are tens of them... can its size be reduced, disabling some not used modules?
You don't want to set it to low otherwise requests from users will timeout or be slow. The general idea is to set it at and a little above the number of requests you expect.
What are your system specs if it can't run with the default DA provides?
I also wouldnt mind knowing how to reduce memory consumption as my test directadmin server doesnt need to be serving many hits but is using a lot of memory on httpd and perl.