From: David Miller <davem@davemloft.net>
To: saverio.mascolo@gmail.com
Cc: ldecicco@gmail.com, ilpo.jarvinen@helsinki.fi, netdev@vger.kernel.org
Subject: Re: TCP default congestion control in linux should be newreno
Date: Thu, 04 Dec 2008 12:47:47 -0800 (PST) [thread overview]
Message-ID: <20081204.124747.89999526.davem@davemloft.net> (raw)
In-Reply-To: <b98e548c0812041205y4538b62apbbdb42469220ffa9@mail.gmail.com>
From: "Saverio Mascolo" <saverio.mascolo@gmail.com>
Date: Thu, 4 Dec 2008 21:05:37 +0100
> > The bigger problem is that windows are so much larger now that going
> > back to the stone ages and newreno recovery behavior is absolutely not
> > an option any more.
>
> average window cannot be much larger, because average windows follow
> network capacity in any case. so you can end up having only more
> oscillating windows (i.e. more timeouts, more retransmissions)
But a lost based fast recovery is more expensive unless you
modify the congestion window handling, reno simply does
not scale.
next prev parent reply other threads:[~2008-12-04 20:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <b98e548c0812030637j2851ed76xb0768932b434e35c@mail.gmail.com>
2008-12-03 16:12 ` TCP default congestion control in linux should be newreno Saverio Mascolo
2008-12-04 12:41 ` Ilpo Järvinen
2008-12-04 15:26 ` Saverio Mascolo
2008-12-04 17:56 ` David Miller
2008-12-04 17:57 ` David Miller
2008-12-04 17:50 ` Luca De Cicco
2008-12-04 18:18 ` David Miller
2008-12-04 19:05 ` Saverio Mascolo
2008-12-04 19:54 ` David Miller
2008-12-04 20:05 ` Saverio Mascolo
2008-12-04 20:47 ` David Miller [this message]
2008-12-04 21:05 ` Ilpo Järvinen
2008-12-04 23:56 ` John Heffner
2008-12-04 20:08 ` Ilpo Järvinen
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