[olug] any ntop wizards here?

[Neal Rauhauser]

  Any ntop wizards here? I'm monitoring half a dozen Cisco routers doing 
netflow export for busy T1s on one box and I'm watching a DS3 and a 100 
mbit ethernet link on another - the system just falls flat on both after 
a short time. There are lots of tuning knobs and I've heard from the 
author that this situation can be made stable, but I've grown quite 
frustrated  at twiddling it ... some help would be much appreciated.