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From: Benjamin LaHaise <bcrl@kvack.org>
To: Ben Greear <greearb@candelatech.com>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: TCP connection stops after high load.
Date: Wed, 11 Apr 2007 21:06:24 -0400	[thread overview]
Message-ID: <20070412010624.GO13621@kvack.org> (raw)
In-Reply-To: <461D4DD7.7020207@candelatech.com>

On Wed, Apr 11, 2007 at 02:06:31PM -0700, Ben Greear wrote:
> For the dup acks, I see nothing *but* dup acks on the wire...going in
> both directions interestingly, at greater than 100,000 packets per second.
> 
> I don't mind adding printks...and I've started reading through the code,
> but there is a lot of it, and indiscriminate printks will likely just
> hide the problem because it will slow down performance so much.

What do the timestamps look like?  PAWS contains logic which will drop 
packets if the timestamps are too old compared to what the receiver 
expects.

		-ben
-- 
"Time is of no importance, Mr. President, only life is important."
Don't Email: <zyntrop@kvack.org>.

  parent reply	other threads:[~2007-04-12  1:06 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-11 18:50 TCP connection stops after high load Ben Greear
2007-04-11 20:26 ` Ben Greear
2007-04-11 20:48   ` David Miller
2007-04-11 21:06     ` Ben Greear
2007-04-11 21:11       ` David Miller
2007-04-11 21:31         ` Ben Greear
2007-04-11 21:39           ` David Miller
2007-04-12  2:44           ` SANGTAE HA
2007-04-12  1:06       ` Benjamin LaHaise [this message]
2007-04-12 14:48       ` Andi Kleen
2007-04-12 17:59         ` Ben Greear
2007-04-12 18:19           ` Eric Dumazet
2007-04-12 19:12             ` Ben Greear
2007-04-12 20:41               ` Eric Dumazet
2007-04-12 21:36                 ` Ben Greear
2007-04-13  7:09                   ` Evgeniy Polyakov
2007-04-13 16:42                     ` Ben Greear
2007-04-13 16:10             ` Daniel Schaffrath
2007-04-13 16:41               ` Eric Dumazet
2007-04-14  4:21                 ` Herbert Xu
2007-04-14  4:25                   ` David Miller
2007-04-14  5:31                   ` Eric Dumazet
2007-04-14  5:37                     ` David Miller
2007-04-11 20:41 ` David Miller
2007-04-12  6:12 ` Ilpo Järvinen
  -- strict thread matches above, loose matches on Subject: below --
2007-04-12 21:11 Robert Iakobashvili
2007-04-12 21:15 ` David Miller
2007-04-15 12:14   ` Robert Iakobashvili
2007-04-15 15:31     ` John Heffner
2007-04-15 15:49       ` Robert Iakobashvili
2007-04-16 18:07         ` John Heffner
2007-04-16 18:51           ` Robert Iakobashvili
2007-04-16 19:11             ` John Heffner
2007-04-16 19:17               ` David Miller
2007-04-16 19:15             ` David Miller
2007-04-17  7:58               ` Robert Iakobashvili
2007-04-17 19:39                 ` David Miller
2007-04-17 19:47                   ` John Heffner
2007-04-17 19:51                     ` David Miller
2007-04-17 19:58                   ` Robert Iakobashvili
2007-04-15 13:52   ` Robert Iakobashvili

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