|To:||Karsten Desler <kdesler@xxxxxxxxxx>|
|Subject:||Re: _High_ CPU usage while routing (mostly) small UDP packets|
|From:||Con Kolivas <kernel@xxxxxxxxxxx>|
|Date:||Tue, 07 Dec 2004 10:56:58 +1100|
|Cc:||David S. Miller <davem@xxxxxxxxxxxxx>, netdev@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx|
|References:||<20041206205305.GA11970@soohrt.org> <email@example.com> <20041206224107.GA8529@soohrt.org>|
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.
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.
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