Running Multiple Servers

[Jonathan Vanasco]

Can anyone point me towards a good reference for running multiple 
mod_perl servers on the same box?

I'm going to be having 2-3 mod_perl apps running at once on a box I've 
got.

I've read the mod_perl o'reilly book with the chapter that covers 
'optimizing' performance by separating the mod_perl from vanilla apache 
and using a proxypass to pass it over to an alternate port.

I'm trying to figure out if it'll be worth the headache to set up a 
separate apache server for each mod_perl project.  I know in practice 
there should be a decent performance gain from less shared memory -- 
but it looks like a nightmare to set up.