[Zope] large number of users in standard acl_users ?

[Chris Withers]

J Cameron Cooper wrote:
>>
> Well, I was just guessing that the user authentication lookups probably 
> aren't a constant-time operation and scale at least linearly with the 
> number of users, but I don't actually know this. It could be that it 
> falls on the other side of the space/time tradeoff and will instead go 
> nuts on memory.

How would any other user storage medium make this differ?

cheers,

Chris