79 sessions per 4 GB

[nepdev]

On a newly installed app server with 4 GB RAM the admin panel tells me that I should have 79 sessions available by default. 

This is an automatically calculated value, but it is FAR OFF THE MARK. 

Of course it depends what you are doing in a session, but if I have 20 users which are only running Thunderbird, and a few of them run Firefox, then the server is maxing out at 15 (fifteen) sessions.

When i say "max out", I mean that whenever I start more than around 15 sessions, the next users get a very slow UI and it's not responsive, in the console on the server you start to see messages like "kiilled process Firefox (out of memory)" or something similar.

It may not be important, unless there is something wrong with my setup, but 79 sessions for 4 GB is 50 MB per session which is totally impossible, unless the session is just meant to sit there and no apps being started. Which of course defeats the purpose of installing Ulteo in the first place.