From: Eric Dumazet <eric.dumazet@gmail.com>
To: Anders Nilsson Plymoth <lanilsson@gmail.com>
Cc: netfilter-devel <netfilter-devel@vger.kernel.org>
Subject: Re: netfilter queue throughput slowdown
Date: Wed, 29 Jun 2011 12:08:16 +0200 [thread overview]
Message-ID: <1309342096.2532.116.camel@edumazet-laptop> (raw)
In-Reply-To: <BANLkTi=C7J0u_kn6UknFsGAx9Z5kHUUBrw@mail.gmail.com>
Le mercredi 29 juin 2011 à 11:55 +0200, Anders Nilsson Plymoth a écrit :
> Hi Eric,
>
> Thanks for your reply.
> Yes, I am sure I set the verdict, as right now I do it on all packets
> by default.
> I will try upgrading and see if it works. Do you know if commit
> c463ac972315a0 solves the problem you mentioned?
No, it doesnt solve the problem, only make things faster.
But if some packets are never dequeued (because something is wrong with
your program, failing to give verdict), they stay forever in the list
and each dequeue is slower since it has to go past these packets...
2.6.37 also contains commit 29b4433d991c88d86ca48a4c1cc33c671475be4b
(net: percpu net_device refcount) which helps a lot netfilter
queue/dequeue if your machine is SMP.
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next prev parent reply other threads:[~2011-06-29 10:08 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-29 9:17 netfilter queue throughput slowdown Anders Nilsson Plymoth
2011-06-29 9:47 ` Eric Dumazet
2011-06-29 9:55 ` Anders Nilsson Plymoth
2011-06-29 10:08 ` Eric Dumazet [this message]
2011-06-30 6:20 ` Kuzin Andrey
2011-06-30 6:47 ` Eric Dumazet
2011-06-30 7:36 ` Kuzin Andrey
2011-06-30 11:34 ` Eric Dumazet
2011-06-30 11:59 ` Patrick McHardy
2011-06-30 15:15 ` Eric Dumazet
2011-06-30 14:32 ` Stephen Clark
2011-06-30 14:51 ` Patrick McHardy
2011-06-30 17:07 ` Eric Leblond
2011-06-30 17:45 ` Eric Dumazet
2011-06-30 18:08 ` Eric Leblond
2011-07-01 6:39 ` Amos Jeffries
2011-07-01 7:00 ` [RFC] nfnetlink_queue not scalable Eric Dumazet
2011-07-01 7:49 ` Florian Westphal
2011-07-01 15:27 ` [PATCH 1/2] nfnetlink: add RCU in nfnetlink_rcv_msg() Eric Dumazet
2011-07-01 14:11 ` Florian Westphal
2011-07-05 13:22 ` Patrick McHardy
2011-07-18 14:06 ` Patrick McHardy
2011-07-01 15:08 ` netfilter queue throughput slowdown Anders Nilsson Plymoth
2011-06-30 22:24 ` Sam Roberts
2011-07-01 4:53 ` Eric Dumazet
2011-06-30 22:26 ` Sam Roberts
2011-07-01 4:52 ` Eric Dumazet
2011-07-02 12:25 ` Pablo Neira Ayuso
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