From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with ESMTP id 6BF0E6B00C4 for ; Mon, 16 Feb 2009 14:47:24 -0500 (EST) Message-ID: <4999C1CE.8080002@cs.helsinki.fi> Date: Mon, 16 Feb 2009 21:43:10 +0200 From: Pekka Enberg MIME-Version: 1.0 Subject: Re: [patch] SLQB slab allocator (try 2) References: <20090123154653.GA14517@wotan.suse.de> <200902041748.41801.nickpiggin@yahoo.com.au> <20090204152709.GA4799@csn.ul.ie> <200902051459.30064.nickpiggin@yahoo.com.au> <20090216184200.GA31264@csn.ul.ie> <4999BBE6.2080003@cs.helsinki.fi> <20090216194157.GB31264@csn.ul.ie> In-Reply-To: <20090216194157.GB31264@csn.ul.ie> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Mel Gorman Cc: Nick Piggin , Nick Piggin , Linux Memory Management List , Linux Kernel Mailing List , Andrew Morton , Lin Ming , "Zhang, Yanmin" , Christoph Lameter List-ID: Mel Gorman wrote: > On Mon, Feb 16, 2009 at 09:17:58PM +0200, Pekka Enberg wrote: >> Hi Mel, >> >> Mel Gorman wrote: >>> I haven't done much digging in here yet. Between the large page bug and >>> other patches in my inbox, I haven't had the chance yet but that doesn't >>> stop anyone else taking a look. >> So how big does an improvement/regression have to be not to be >> considered within noise? I mean, I randomly picked one of the results >> ("x86-64 speccpu integer tests") and ran it through my "summarize" >> script and got the following results: >> >> min max mean std_dev >> slub 0.96 1.09 1.01 0.04 >> slub-min 0.95 1.10 1.00 0.04 >> slub-rvrt 0.90 1.08 0.99 0.05 >> slqb 0.96 1.07 1.00 0.04 >> > > Well, it doesn't make a whole pile of sense to get the average of these ratios > or the deviation between them. Each of the tests behave very differently. Uhm, yes. I need to learn to read one of these days. Pekka -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org