Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932520AbZAPKWF (ORCPT ); Fri, 16 Jan 2009 05:22:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932251AbZAPKVc (ORCPT ); Fri, 16 Jan 2009 05:21:32 -0500 Received: from smtp109.mail.mud.yahoo.com ([209.191.85.219]:49087 "HELO smtp109.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1765969AbZAPKVb (ORCPT ); Fri, 16 Jan 2009 05:21:31 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=vob7rqWl/50QH+yaRW0RONShVf1L4sCck2f9nJQH9VfRTzrdizzwXsaRFyQ0ZGZag+owEvA9KvQTuaw7S3gzVqMYPnWbQAB6glnd/UK90eBz1KlfVupuNb2lRgQlgls3wUQhypRmIfCchBU1gy1/AD64Sg15UvvVG2BW7K2IIcg= ; X-YMail-OSG: _19hwIsVM1mE1fmju4SEQQVZv5xu.W0qXeIqG7_.KfP7FlYVv5Nzk6.GOjEbIkpVw3LMy46d068yr7wjEgeMgZrsFqRuoF8Qp1Ol9NpgSprMsqU5vNjGG_iym3UdKM0Kss4oWif9XGZ3rNqYXJqXrlT7iA-- X-Yahoo-Newman-Property: ymail-3 From: Nick Piggin To: "Pekka Enberg" Subject: Re: Mainline kernel OLTP performance update Date: Fri, 16 Jan 2009 21:21:07 +1100 User-Agent: KMail/1.9.51 (KDE/4.0.4; ; ) Cc: "Matthew Wilcox" , "Andrew Morton" , "Wilcox, Matthew R" , chinang.ma@intel.com, linux-kernel@vger.kernel.org, sharad.c.tripathi@intel.com, arjan@linux.intel.com, andi.kleen@intel.com, suresh.b.siddha@intel.com, harita.chilukuri@intel.com, douglas.w.styner@intel.com, peter.xihong.wang@intel.com, hubert.nueckel@intel.com, chris.mason@oracle.com, srostedt@redhat.com, linux-scsi@vger.kernel.org, "Andrew Vasquez" , "Anirban Chakraborty" , "Christoph Lameter" References: <20090115135236.GB29283@parisc-linux.org> <84144f020901160216q17f1b558q955d5b8fb7c528c0@mail.gmail.com> In-Reply-To: <84144f020901160216q17f1b558q955d5b8fb7c528c0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200901162121.09128.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1200 Lines: 29 On Friday 16 January 2009 21:16:31 Pekka Enberg wrote: > On Thu, Jan 15, 2009 at 11:46:09AM +0200, Pekka Enberg wrote: > >> It would also be nice if someone could do the performance analysis on > >> the SLUB bug. I ran sysbench in oltp mode here and the results look > >> like this: > >> > >> [ number of transactions per second from 10 runs. ] > >> > >> min max avg sd > >> 2.6.29-rc1-slab 833.77 852.32 845.10 4.72 > >> 2.6.29-rc1-slub 823.61 851.94 836.74 8.57 > I had lockdep enabled in my config so I ran the tests again with > x86-64 defconfig and I'm back to square one: > > [ number of transactions per second from 10 runs, bigger is better ] > > min max avg sd > 2.6.29-rc1-slab 802.02 805.37 803.93 0.97 > 2.6.29-rc1-slub 807.78 811.20 809.86 1.05 Hm, I wonder why it is going slower with lockdep disabled? Did something else change? -- 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/