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Sender: Navdeep Parhar <nparhar@gmail.com>
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Date: Tue, 13 Aug 2013 10:37:10 -0700
From: Navdeep Parhar <np@FreeBSD.org>
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To: Julian Elischer <julian@freebsd.org>
Subject: Re: TSO and FreeBSD vs Linux
References: <520A6D07.5080106@freebsd.org>
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Cc: FreeBSD Net <net@FreeBSD.org>
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On 08/13/13 10:29, Julian Elischer wrote:
..
> 
> Has anyone done any work on aggregating ACKs, or delaying responding to
> them?

If LRO is enabled on the FreeBSD receiver, ACKs are already aggregated
(a duplicate ACK will result in an immediate flush though.)  See tcp_lro_rx.

Regards,
Navdeep