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From: Andrea Arcangeli <andrea@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: ak@suse.de, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org
Subject: Re: 2.4 delayed acks don't work, fixed
Date: Wed, 19 Mar 2003 20:48:59 +0100	[thread overview]
Message-ID: <20030319194859.GO30541@dualathlon.random> (raw)
In-Reply-To: <20030318.180219.91189534.davem@redhat.com>

On Tue, Mar 18, 2003 at 06:02:19PM -0800, David S. Miller wrote:
> TCP needs at least a full window of data on the send side to clock
> things properly.  This streamer application doesn't give TCP that

the inflating doubling the ato is too slow after you destroyed the ato
info setting it to 4 this is why it takes so long for 2.4 to clock
things properly, at least you should inflate it with the average down.
the <= in the window raise check in recvmsg as well generate window
updates too early, I find better to wait two packets to be read before
sending the window update. Now that I understood better how the logic in
mainline works I'll try to make a better patch (not very soon though
since I'm busy with other stuff and next week I'll be offline most of
the time).

Andrea

      reply	other threads:[~2003-03-19 19:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-17  8:25 2.4 delayed acks don't work, fixed Andrea Arcangeli
2003-03-18 18:34 ` kuznet
2003-03-18 19:34   ` Andrea Arcangeli
2003-03-18 20:13     ` kuznet
2003-03-18 22:19       ` Andrea Arcangeli
2003-03-18 22:35         ` kuznet
     [not found]           ` <20030319002409.GI30541@dualathlon.random>
2003-03-19  0:37             ` David S. Miller
2003-03-19  0:58               ` Andrea Arcangeli
2003-03-19  1:33                 ` Help with patch for vesafbd support again? Kendall Bennett
2003-03-19  3:00                   ` Randy.Dunlap
2003-03-19 19:25                     ` Kendall Bennett
2003-03-19  1:55               ` 2.4 delayed acks don't work, fixed Andi Kleen
2003-03-19  2:02                 ` David S. Miller
2003-03-19 19:48                   ` Andrea Arcangeli [this message]

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