[Iftop-users] can't monitor traffic on a gigabit subnet

[Paul Warren]

On Wed, Jul 06, 2005 at 03:47:26PM -0400, Igor Schein wrote:
> When bandwidth usage for any connection is very high ( in my tests -
> 20MB/s or 160Mb/s ), iftop-0.16 stops reporting usage for that
> connection and becomes unresponsive - ^C doesn't work.  More
> specifically - the connection in question represents NFS UDP traffic.  

How many host pairs have you got on screen?  What CPU does your machine
have?

I've certainly used it with a good few hundred Mbps of traffic without
problem, but it's possible that it becomes CPU bound under some
circumstances.

Paul