Re: _High_ CPU usage while routing (mostly) small UDP packets

jamal
2004-12-07T13:04:40Z

On Tue, 2004-12-07 at 07:50, Karsten Desler wrote:

> Currently I'm having problems capturing packets with tcpdump (lots of
> "packets dropped by kernel") which indicates to me that there's
> genuinely not much (enough) idle time sitting around.
>

Ah, more hints. So you are not trying to forward - rather just packet
capturing?
Are you using a tcpdump patched with mmaped packet socket?

The 230-240Kpps you are reporting as a capture dont seem as unreasonable
as i thought then. Neither would the CPU use.

cheers,
jamal