From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: TSO and IPoIB performance degradation Date: Thu, 09 Mar 2006 23:18:06 -0800 (PST) Message-ID: <20060309.231806.10212645.davem@davemloft.net> References: <20060308125311.GE17618@mellanox.co.il> <20060309.154819.104282952.davem@davemloft.net> <20060310001031.GA19040@mellanox.co.il> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, rdreier@cisco.com, linux-kernel@vger.kernel.org, openib-general@openib.org, shemminger@osdl.org Return-path: To: mst@mellanox.co.il In-Reply-To: <20060310001031.GA19040@mellanox.co.il> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: openib-general-bounces@openib.org Errors-To: openib-general-bounces@openib.org List-Id: netdev.vger.kernel.org From: "Michael S. Tsirkin" Date: Fri, 10 Mar 2006 02:10:31 +0200 > But with the change we are discussing, could an ack now be sent even > sooner than we have at least two full sized segments? Or does > __tcp_ack_snd_check delay until we have at least two full sized > segments? David, could you explain please? __tcp_ack_snd_check() delays until we have at least two full sized segments.