Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933265AbZINTVI (ORCPT ); Mon, 14 Sep 2009 15:21:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754908AbZINTVH (ORCPT ); Mon, 14 Sep 2009 15:21:07 -0400 Received: from mail-yx0-f171.google.com ([209.85.210.171]:33619 "EHLO mail-yx0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754891AbZINTVG convert rfc822-to-8bit (ORCPT ); Mon, 14 Sep 2009 15:21:06 -0400 X-Greylist: delayed 393 seconds by postgrey-1.27 at vger.kernel.org; Mon, 14 Sep 2009 15:21:06 EDT DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=Pl1IOC4a91J09sZKD7v0l/YfFveJDgws9DerndJ/h06OWUaTDNjbFJ6UX2QRYH1KXC 8spBrUlzhuTwVwRhgeTPmBn1yacn5ork9gRsNtSgigLAoNVOa0bw3H3sShZ42/IoOoty et8OPldBi48QupVwDgG7ihamOCU3BQuhFhqPs= MIME-Version: 1.0 In-Reply-To: <1252942335.12986.58.camel@marge.simson.net> References: <20090906205952.GA6516@elte.hu> <4AAE10E6.2050403@arcor.de> <1252928133.22740.37.camel@marge.simson.net> <1252942335.12986.58.camel@marge.simson.net> Date: Mon, 14 Sep 2009 21:14:35 +0200 Message-ID: Subject: Re: Phoronix CFS vs BFS bencharks From: Marcin Letyns To: Mike Galbraith Cc: Nikos Chantziaras , Ingo Molnar , Con Kolivas , linux-kernel@vger.kernel.org, Peter Zijlstra Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1080 Lines: 32 2009/9/14 Mike Galbraith > > On Mon, 2009-09-14 at 16:27 +0200, Marcin Letyns wrote: > > Hello, > > > > Disabling NEW_FAIR_SLEEPERS makes a lot of difference here in the > > Apache benchmark: > > > > 2.6.30.6-bfs: 7311.05 > > > > 2.6.30.6-cfs-fair_sl_disabled: 8249.17 > > > > 2.6.30.6-cfs-fair_sl_enabled: 4894.99 > > Wow. > > Some loads like wakeup preemption (mysql+oltp), and some hate it. ?This > load appears to REALLY hate it (as does volanomark, but that thing is > extremely overloaded). ?How many threads does that benchmark run > concurrently? >From the benchmark description: This is a test of ab, which is the Apache Benchmark program. This test profile measures how many requests per second a given system can sustain when carrying out 500,000 requests with 100 requests being carried out concurrently. -- 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/