From: David Miller <davem@davemloft.net>
To: ilpo.jarvinen@helsinki.fi
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] [TCP] FRTO: Limit snd_cwnd if TCP was application limited
Date: Tue, 13 Nov 2007 21:02:33 -0800 (PST) [thread overview]
Message-ID: <20071113.210233.42884295.davem@davemloft.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0711140004210.3997@kivilampi-30.cs.helsinki.fi>
From: "Ilpo_Järvinen" <ilpo.jarvinen@helsinki.fi>
Date: Wed, 14 Nov 2007 00:08:18 +0200 (EET)
>
> Otherwise TCP might violate packet ordering principles that FRTO
> is based on. If conventional recovery path is chosen, this won't
> be significant at all. In practice, any small enough value will
> be sufficient to provide proper operation for FRTO, yet other
> users of snd_cwnd might benefit from a "close enough" value.
>
> FRTO's formula is now equal to what tcp_enter_cwr() uses.
>
> FRTO used to check application limitedness a bit differently but
> I changed that in commit 575ee7140dabe9b9c4f66f4f867039b97e548867
> and as a result checking for application limitedness became
> completely non-existing.
>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Applied to net-2.6, thanks Ilpo.
prev parent reply other threads:[~2007-11-14 5:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-13 22:08 [PATCH] [TCP] FRTO: Limit snd_cwnd if TCP was application limited Ilpo Järvinen
2007-11-14 5:02 ` David Miller [this message]
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