From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerrit Huizenga Subject: Re: Early SPECWeb99 results on 2.5.33 with TSO on e1000 Date: Fri, 06 Sep 2002 12:05:27 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: References: <20020906.114815.127906065.davem@redhat.com> Reply-To: Gerrit Huizenga Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Martin.Bligh@us.ibm.com, hadi@cyberus.ca, tcw@tempest.prismnet.com, linux-kernel@vger.kernel.org, netdev@oss.sgi.com, niv@us.ibm.com Return-path: To: "David S. Miller" In-Reply-To: Your message of Fri, 06 Sep 2002 11:48:15 PDT. <20020906.114815.127906065.davem@redhat.com> Content-ID: <13768.1031339127.1@us.ibm.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org In message <20020906.114815.127906065.davem@redhat.com>, > : "David S. Miller" writes: > From: "Martin J. Bligh" > Date: Fri, 06 Sep 2002 11:51:29 -0700 > > I see no reason why turning on NAPI should make the Apache setup > we have perform worse ... quite the opposite. Yes, we could use > Tux, yes we'd get better results. But that's not the point ;-) > > Of course. > > I just don't want propaganda being spread that using Tux means you > lose any sort of web server functionality whatsoever. Ah sorry - I never meant to imply that Tux was detrimental, other than one case where it seemed to have no benefit and the performance numbers while tuning for TPC-W *seemed* worse but were never analyzed completely. That was the actual event that I meant when I said: We also had some bad starts with using Tux in terms of performance and scalability on 4-CPU and 8-CPU machines, especially when combining with things like squid or other cacheing products from various third parties. Those results were never quantified but for various reasons we had a team that decided to take Tux out of the picture. I think the problem was more likely lack of knowledge and lack of time to do analysis on the particular problems. Another combination of solutions was used. So, any comments I made which might have implied that Tux/Tux2 made things worse have no substantiated data to prove that and it is quite possible that there is no such problem. Also, this was run nearly a year ago and the state of Tux/Tux2 might have been a bit different at the time. gerrit