netdev - Re: [Patch net-next] tcp: add a global sysctl to control TCP delayed ack

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Message-ID: <20130406153826.GC3589@virgo.local>
Date:	Sat, 6 Apr 2013 17:38:26 +0200
From:	Hagen Paul Pfeifer <hagen@...u.net>
To:	Cong Wang <amwang@...hat.com>
Cc:	netdev@...r.kernel.org, Eric Dumazet <eric.dumazet@...il.com>,
	Rick Jones <rick.jones2@...com>,
	Stephen Hemminger <shemminger@...tta.com>,
	"David S. Miller" <davem@...emloft.net>,
	Thomas Graf <tgraf@...g.ch>,
	David Laight <David.Laight@...LAB.COM>
Subject: Re: [Patch net-next] tcp: add a global sysctl to control TCP delayed
 ack

* Cong Wang | 2013-04-04 18:16:00 [+0800]:

>According to previous discussion, it seems there is no
>reasonable heuristics.
>
>Similar to TCP_QUICK_ACK option, but for people who can't
>modify the source code and still wants to control
>TCP delayed ACK behavior.
>
>David, do you still have any objection?

Maybe:

http://kerneltrap.org/mailarchive/linux-netdev/2010/8/23/6283640

I submitted a identical patch 3 years back. The consensus was to implement
this on a per-route tunable - not on a global sysctl tunable. OK, consensus
is not the correct wording ... ;-)

Hagen
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