--- In firebird-support@yahoogroups.com, "red_october2009" wrote:

>
> I came across this document:
>
> http://www.firebirdsql.org/file/documentation/papers_presentations/html/paper-fbent-impacting.html
>
> It seems to be talking about a much older version of FB than is available now. Even back in the days of Win 2003 Server, I've built systems that had probably 300 concurrent users without performance degradation.
>
> I intend to connect about 2000 concurrent users. Is the subject FB version capable on say, 16GB ram, assuming I have a very simple and efficient table structure, queries, plans, FKs and PKs?
>
> If FB cannot handle this number of concurrent connections, what DB should I move to? MS SQL or Oracle? or something else?
>

Firebird can handle more than 100000 concurent users here is an example with a production system http://www.firebirdnews.org/?p=6797

I started updating the paper , some values are increased from that time , machines can handle a lot more these days