[geeklog-devel] performance user groups / roles

[Niemans]

I am wondering if somebody has knowledge / experience / stats on the performance of GeekLog when:

--- there are many, many groups (>> 200)
--- groups will have a hierarchy (several groups are a member of one or more other groups)
--- the average user is member of average 6 groups, with minimum 4 and maximum 12

For Instance:
-- the site will contain all kinds of content and any item "belongs" to a specific group
-- GeekLog will display all content accessible by the user in his 4 or 6 or 12 groups at a time
Example:
-: groups are country (NL, DE) and city (Rotterdam, Amsterdam, Berlin, Hamburg); other groups are market (Electronics, Software) and company (Philips, IBM, Google, NSA); 
-: the Rotterdam group is member of NL; the Philips group is member of Electronics
case: a user belongs to NL, Rotterdam, Electronics and Philips; all content is restricted to a specific group
requirement: topics (stories) or downloads display for this user ALL content available for NL, for Rotterdam, for Electronics, and for Philips. 
 
I need some hints on the performance to avoid falling in death row when the groups start to accumulate.

Please help.

Wim