From: Rusty Russell <rusty@rustcorp.com.au>
To: zhengchuanbo <zhengcb@netpower.com.cn>
Cc: linux-kernel@vger.kernel.org
Subject: Re: about the performance of netfilter
Date: Thu, 25 Jul 2002 17:27:30 +1000 [thread overview]
Message-ID: <20020725172730.52214df0.rusty@rustcorp.com.au> (raw)
In-Reply-To: <200207242128878.SM00796@zhengcb>
On Wed, 24 Jul 2002 21:24:56 +0800
zhengchuanbo <zhengcb@netpower.com.cn> wrote:
>
> we use a linux router. i just tested the performance of the router. when the kernel is build without netfilter support,the throughput of 64bytes frame is about 45%. when i build the kernel with netfilter (only the ip_filter module),the throughput dropped to 24%, without any rules.
> so is there some way to improve the performance? i just want some simple packet filter. is netfilter no so good on the performance compare to ipchains due to the improved functionality?
> please cc. thanks.
There are several stages.
1) CONFIG_NETFILTER=n
2) CONFIG_NETFILTER=y
3) CONFIG_NETFILTER=y CONFIG_IP_NF_TABLES=m, ip_tables.o loaded
4) iptables rules inserted.
Make sure you do not have CONFIG_NETFILTER_DEBUG or CONFIG_IP_NF_CONNTRACK
on!
Rusty.
--
there are those who do and those who hang on and you don't see too
many doers quoting their contemporaries. -- Larry McVoy
next prev parent reply other threads:[~2002-07-25 8:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-24 13:24 about the performance of netfilter zhengchuanbo
2002-07-25 7:27 ` Rusty Russell [this message]
2002-07-25 7:28 ` Harald Welte
2002-07-30 16:29 ` Bill Davidsen
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