netdev - Re: [PATCH net-next v2] tcp: avoid reducing cwnd when ACK+DSACK is received

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Date:	Sat, 10 Jan 2015 09:37:13 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Sébastien Barré <sebastien.barre@...ouvain.be>
Cc:	Yuchung Cheng <ycheng@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	David Miller <davem@...emloft.net>,
	Netdev <netdev@...r.kernel.org>,
	Gregory Detal <gregory.detal@...ouvain.be>,
	Nandita Dukkipati <nanditad@...gle.com>
Subject: Re: [PATCH net-next v2] tcp: avoid reducing cwnd when ACK+DSACK is
 received

On Sat, 2015-01-10 at 12:51 +0100, Sébastien Barré wrote:

> That looks much more readable compared to my v2.
> It is currently passing our tests (These are in fact MPTCP tests appart 
> from Neal's packetdrill that I will add, but actually the MPTCP stack 
> happens to reveal this situation quite easily, I think because in MPTCP, 
> we store the send queue in the "meta-flow", which currently cannot be 
> used for tail loss probes).
> 
> As probably everyone will be happy with this (Eric as well ?), I suggest 
> I prepare a v3 once all our tests are passed as well, with Yuchung's 
> structure and Neal's packetdrill test in the commit text. Will also add 
> proper credit as there is now stuff from several people in those few 
> lines now :-).
> 
> Looks good ?

Definitely !

Thanks !


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