[Tutor] Cross-Module Interaction

[Alan Gauld]

"Corey Richardson" <kb1pkl at aim.com> wrote

> I'm slightly concerned about performance when it comes to
> reading/writing to disk a lot when doing things like that, since if 
> this
> thing ever needs to scale I want it to be able to do that.

There is always an overhead but it depends what you
mean by "a lot".

You might choose to only write on updates, only write when
users leave the system, only write when the system closes
down or write periodically (either a timed period or when
certain resource levels get above/below critical levels)

Lots of options. You need to choose a strategy that works
for your situation.

-- 
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/