netdev - Re: TCP rx window autotuning harmful at LAN context

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Message-Id: <20090311.063058.236235660.davem@davemloft.net>
Date:	Wed, 11 Mar 2009 06:30:58 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	andi@...stfloor.org
Cc:	md@....sk, netdev@...r.kernel.org
Subject: Re: TCP rx window autotuning harmful at LAN context

From: Andi Kleen <andi@...stfloor.org>
Date: Wed, 11 Mar 2009 11:03:35 +0100

> Perhaps this points to the default buffer sizing heuristics to 
> be too aggressive for >= 1GB?

It's necessary Andi, you can't fill a connection on a trans-
continental connection without at least a 4MB receive buffer.

Did you read the commit message of the change that increased
the limit?
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