Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764879AbZAONww (ORCPT ); Thu, 15 Jan 2009 08:52:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755900AbZAONwl (ORCPT ); Thu, 15 Jan 2009 08:52:41 -0500 Received: from palinux.external.hp.com ([192.25.206.14]:35176 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754589AbZAONwl (ORCPT ); Thu, 15 Jan 2009 08:52:41 -0500 Date: Thu, 15 Jan 2009 06:52:36 -0700 From: Matthew Wilcox To: Pekka Enberg Cc: Nick Piggin , 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 Subject: Re: Mainline kernel OLTP performance update Message-ID: <20090115135236.GB29283@parisc-linux.org> References: <20090115012147.GW29283@parisc-linux.org> <20090114180431.f4a96543.akpm@linux-foundation.org> <200901151824.38658.nickpiggin@yahoo.com.au> <84144f020901150146x72402ec4p7636d583cfd55b3e@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <84144f020901150146x72402ec4p7636d583cfd55b3e@mail.gmail.com> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1144 Lines: 27 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 > > And no, the numbers are not flipped, SLUB beats SLAB here. :( Um. More transactions per second is good. Your numbers show SLAB beating SLUB (even on your dual-CPU system). And SLAB shows a lower standard deviation, which is also good. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- 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/