From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: 2.6.10 TCP troubles -- suggested patch Date: Fri, 11 Feb 2005 17:09:58 -0800 Message-ID: <20050211170958.17fcde21.davem@davemloft.net> References: <0525M9211@server5.heliogroup.fr> <420D37A3.6020209@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: hubert.tonneau@fullpliant.org, shemminger@osdl.org, romieu@fr.zoreil.com, kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com To: Rick Jones In-Reply-To: <420D37A3.6020209@hp.com> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Fri, 11 Feb 2005 14:54:27 -0800 Rick Jones wrote: > In some cases at least if the sender does not completely fill cwnd the > ACKs will be delayed. And IIRC under 2.6.10 with TSO enabled, the > sender does not always fill cwnd. At a maximum, "1/tcp_tso_win_divisor" of the cwnd will ever be left empty. By default, this is 1/8 of the cwnd.