CPU and memory resource limits

To those running a box offering a shared hosting environment, just wondering what you guys have set for CPU and memory resource limits that can be set for each virtual server. In my case, the box is an Intel® Pentium® 4 CPU 3.06GHz (3066 MHz) with 1 GB RAM

Maximum number of processes
Maximum size per process
Maximum CPU time per process


at the moment I have it set to unlimited with a dual processor 2,8ghz and 4gig of ram and over 50 accounts, 2 gameservers, a mediaserver and 2 uplinks of 100mb

load average: 0.04, 0.15, 0.16
looks like the box is dead, doesn’t it. I think that will change when someone starts using some buggy perl scripts.