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From: Paul Lambert <paul@digis.net>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] MARK causes high CPU usage / using tc in conjunction
Date: Fri, 28 May 2004 15:50:00 +0000	[thread overview]
Message-ID: <40B75FA8.7070805@digis.net> (raw)
In-Reply-To: <40AFC555.1010900@digis.net>

I'm actually using the WISP Billing System from PowerNOC. I talked with 
them about your idea and they implemented it for me already. It is 
working great. Thanks everyone for your help!

Andreas Klauer wrote:

> Am Saturday 22 May 2004 23:25 schrieb Paul Lambert:
> 
>>This setup has worked well for more than 1000 devices but as the network
>>has grown to 3000+ devices the CPU is not keeping up.
> 
> 
> I guess you mean 3000+ clients, not actual network devices on one machine.
> 
> 
>>*** eth0 is MASQUERADE'd so I mark the packet on eth1 ***
>>*** I have narrowed it down to this one entry sucking all the CPU ***
>>iptables -t mangle -A PREROUTING -s 10.10.6.20 -i eth1 -j MARK
>>--set-mark 0x843
> 
> 
> Well, if you have 3000+ rules like that, it will certainly slow you down.
> You should use some kind of hashing. How that is done for tc filters,
> is described here: http://www.lartc.org/lartc.html#LARTC.ADV-FILTER.HASHING
> 
> Apply the same (or a similar) mechanism to your iptables ruleset and 
> you should get improved speeds.
> 
> HTH
> Andreas
> _______________________________________________
> LARTC mailing list / LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

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      parent reply	other threads:[~2004-05-28 15:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-22 21:25 [LARTC] MARK causes high CPU usage / using tc in conjunction with MASQ Paul Lambert
2004-05-23 18:07 ` Andreas Klauer
2004-05-23 22:30 ` [LARTC] MARK causes high CPU usage / using tc in conjunction Ed Wildgoose
2004-05-23 23:27 ` [LARTC] MARK causes high CPU usage / using tc in conjunction with MASQ Andreas Klauer
2004-05-24  0:50 ` [LARTC] MARK causes high CPU usage / using tc in conjunction Paul Lambert
2004-05-24 21:20 ` [LARTC] MARK causes high CPU usage / using tc in conjunction with MASQ miller69
2004-05-28 15:50 ` Paul Lambert [this message]

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