[Zope] should my Zope site have multiple instances of pcgi-wrapper running? running?

[Tony McDonald]

subject says it all really, I have a server that is hosting three 
different sites (from Apache ReWrite rules) and I'm seeing this sort 
of thing;

   nobody 23793  2349  0 11:50:07 ?        0:01 
/home/zope/NLE_SITES/pcgi/pcgi-wrapper /home/zope/NLE_SITES/Zope.cgi
   nobody 24396  2476  0 11:55:39 ?        0:00 
/home/zope/NLE_SITES/pcgi/pcgi-wrapper /home/zope/NLE_SITES/Zope.cgi
   nobody 23816  2308  0 11:51:11 ?        0:00 
/home/zope/NLE_SITES/pcgi/pcgi-wrapper /home/zope/NLE_SITES/Zope.cgi

with this from 'top'
   PID USERNAME THR PRI NICE  SIZE   RES STATE   TIME    CPU COMMAND
23793 nobody     1  33    0   34M   34M sleep   0:00  0.02% Zope.cgi

This is with a 6 Megabyte database.

Is this normal? Would I be better off splitting the sites to use 
different instances of Zope?

tone
------
Dr Tony McDonald,  FMCC, Networked Learning Environments Project 
http://nle.ncl.ac.uk/
The Medical School, Newcastle University Tel: +44 191 222 5888
Fingerprint: 3450 876D FA41 B926 D3DD  F8C3 F2D0 C3B9 8B38 18A2