From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: bad TSO performance in 2.6.9-rc2-BK Date: Wed, 22 Sep 2004 15:25:35 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <20040922152535.7bc81c8a.davem@davemloft.net> References: <20040920063012.GL2825@krispykreme> <20040920203021.GD4242@wotan.suse.de> <20040921155835.18aee381.davem@davemloft.net> <20040922140000.GD27432@wotan.suse.de> <20040922111209.7887df53.davem@davemloft.net> <20040922195515.GA2619@wotan.suse.de> <20040922133906.7d57ef49.davem@davemloft.net> <20040922220628.GC2619@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: andy.grover@gmail.com, ak@suse.de, anton@samba.org, netdev@oss.sgi.com Return-path: To: Andi Kleen In-Reply-To: <20040922220628.GC2619@wotan.suse.de> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Thu, 23 Sep 2004 00:06:28 +0200 Andi Kleen wrote: > > One thing that could be biting us is the nagle check which > > probably needs to be adjusted to use the standard MSS not > > the TSO one... perhaps play with this patch: > > I tried it and it breaks the performance completely > (21MB/s) You said you were getting 22MB/sec before the change, right?