netdev - Re: tcp wifi upload performance and lots of ACKs

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Message-Id: <20120607.111013.2155552765767462604.davem@davemloft.net>
Date:	Thu, 07 Jun 2012 11:10:13 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rick.jones2@...com
Cc:	David.Laight@...LAB.COM, greearb@...delatech.com,
	dbaluta@...acom.com, netdev@...r.kernel.org
Subject: Re: tcp wifi upload performance and lots of ACKs

From: Rick Jones <rick.jones2@...com>
Date: Thu, 07 Jun 2012 10:51:20 -0700

> This may not work well when the sender has a congestion window growth
> heuristic different from what the ACK avoidance heuristic assumes.  If
> I recall correctly, the heuristic in HP-UX assumes the sender grows
> cwnd by the number of bytes/segments ACKnowledged.

Linux violates this assumption.

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