From: "David S. Miller" <davem@davemloft.net>
To: eddy_kvetny@yahoo.com
Cc: robert.olsson@data.slu.se, netfilter-devel@lists.netfilter.org,
netfilter@lists.netfilter.org
Subject: Re: Huge impact of the conntrack mechanism on routing performance (30% with a single conntrack entry)
Date: Fri, 07 Apr 2006 14:28:29 -0700 (PDT) [thread overview]
Message-ID: <20060407.142829.87870703.davem@davemloft.net> (raw)
In-Reply-To: <20060405140305.9637.qmail@web33801.mail.mud.yahoo.com>
From: Eddy Kvetny <eddy_kvetny@yahoo.com>
Date: Wed, 5 Apr 2006 07:03:05 -0700 (PDT)
> Right after "insmod ip_conntrack.ko" the throughput
> drastically falls to 28 kpps (-12 kpps or -30% !!!).
Yes, this is pretty much what the cost of netfilter is for a router.
This has been known and well understood for a long time, and solutions
to this problem are not easy which is why there hasn't been any
progress in this area to date.
next prev parent reply other threads:[~2006-04-07 21:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-05 14:03 Huge impact of the conntrack mechanism on routing performance (30% with a single conntrack entry) Eddy Kvetny
2006-04-05 14:03 ` Eddy Kvetny
2006-04-07 21:28 ` David S. Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-04-06 10:27 Eddy Kvetny
2006-04-09 21:10 Eddy Kvetny
2006-04-12 8:43 ` Harald Welte
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