[CentOS] Looking for a method to keep at least 5% CPU

[Christopher Chan]

> I can recall on countless occasions over the years being able to
> login to a system that is running at 100% cpu usage and not
> really have any noticeable impact on being able to login or
> interact with the system.
> 

I agree here. I do remember not being able to log in when i/o is 
completely swamped though. Maybe the problem is not so much 100% cpu 
usage but disk i/o. The box might be thrashing swap.