Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263907AbTICP5u (ORCPT ); Wed, 3 Sep 2003 11:57:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263705AbTICPzx (ORCPT ); Wed, 3 Sep 2003 11:55:53 -0400 Received: from fw.osdl.org ([65.172.181.6]:35548 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S263683AbTICPwD (ORCPT ); Wed, 3 Sep 2003 11:52:03 -0400 Message-Id: <200309031551.h83Fpu413835@mail.osdl.org> X-Mailer: exmh version 2.2 06/23/2000 with nmh-1.0.4 To: Nick Piggin cc: linux-kernel@vger.kernel.org, cliffw@osdl.org Subject: UP Regression (was) Re: Scaling noise In-Reply-To: Message from Nick Piggin of "Wed, 03 Sep 2003 16:55:55 +1000." <3F55907B.1030700@cyberone.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 03 Sep 2003 08:51:56 -0700 From: Cliff White Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2018 Lines: 55 [snip] . > > I don't think anyone advocates sacrificing UP performance for 32 ways, but > as he says it can happen .1% at a time. > > But it looks like 2.6 will scale well to 16 way and higher. I wonder if > there are many regressions from 2.4 or 2.2 on small systems. > > On the Scalable Test Platform, running osdl-aim-7, for the UP case, 2.4 is a bit better than 2.6, this is consistent across many runs. For SMP, 2.6 is better, but the delta is rather small, until we get to 8 CPUS. We have a lot of un-parsed data from other tests - might be some trends there also. See http://developer.osdl.org/cliffw/reaim/index.html 2.4 kernels are at the bottom of the page. Run # PLM # Kernel workload Max JPM max host 1-way lusers 278671 2083 patch-2.4.23-pre2 new_dbase 1066.75 18 stp1-003 278835 2087 2.6.0-test4-mm5 new_dbase 995.74 17 stp1-003 2-way 278690 2083 patch-2.4.23-pre2 new_dbase 1300.01 22 stp2-000 278854 2087 2.6.0-test4-mm5 new_dbase 1340.96 22 stp2-000 4-way 278437 2075 patch-2.4.23-pre1 new_dbase 5268.41 80 stp4-000 278805 2084 2.6.0-test4-mm4 new_dbase 5355.73 88 stp4-000 8-way 278651 2083 patch-2.4.23-pre2 new_dbase 6790.01 112 stp8-002 278722 2084 2.6.0-test4-mm4 new_dbase 8189.51 136 stp8-001 cliffw > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/