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 11:54:16 -0800 (PST) [thread overview]
Message-ID: <20081204.115416.174997306.davem@davemloft.net> (raw)
In-Reply-To: <b98e548c0812041105o6c2ded8br3c2349cabceaf99f@mail.gmail.com>
From: "Saverio Mascolo" <saverio.mascolo@gmail.com>
Date: Thu, 4 Dec 2008 20:05:22 +0100
> the rationale of VJ choice seems simple to me: if the window is
> increased of one packet in one rtt, i can drop at most one packet in
> one rtt and so i have to recover only one packet in one rtt (note that
> rtt is the feedback reaction time). If cwnd is increased of N packets
> i could drop N packets and i could need to recover N pkts. this is the
> problem here.
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.
So "go back to newreno" is not a suggestion to be taken seriously.
next prev parent reply other threads:[~2008-12-04 19:54 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 [this message]
2008-12-04 20:05 ` Saverio Mascolo
2008-12-04 20:47 ` David Miller
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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