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

Con Kolivas
2004-12-06T23:58:28Z

Karsten Desler writes:

> * David S. Miller wrote:
>> It's spending nearly half of it's time in iptables.
>> Try to consolidate your rules if possible. This is the
>> part of netfilter that really doesn't scale well at all.
>>
>
> Removing the iptables rules helps reducing the load a little, but the
> majority of time is still spent somewhere else.

I had a similar scenario recently with a very low spec box and found it to
be the QoS. Disabling traffic shaping and removing the QoS modules made it
much faster. I don't know if you're using them but it's worth pointing out.

Cheers,
Con