Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751464AbXAPJtr (ORCPT ); Tue, 16 Jan 2007 04:49:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751468AbXAPJtr (ORCPT ); Tue, 16 Jan 2007 04:49:47 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:51022 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751464AbXAPJtq (ORCPT ); Tue, 16 Jan 2007 04:49:46 -0500 Date: Tue, 16 Jan 2007 10:44:50 +0100 From: Ingo Molnar To: Pierre Peiffer Cc: LKML , Andrew Morton , Ulrich Drepper , Jakub Jelinek Subject: Re: [PATCH 2.6.20-rc4 0/4] futexes functionalities and improvements Message-ID: <20070116094450.GB11543@elte.hu> References: <45A3BFAC.1030700@bull.net> <45A67830.4050207@redhat.com> <20070111134615.34902742.akpm@osdl.org> <45A73E90.7050805@bull.net> <20070112075816.GA23341@elte.hu> <45AC8E2A.3060708@bull.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <45AC8E2A.3060708@bull.net> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -5.9 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-5.9 required=5.9 tests=ALL_TRUSTED,BAYES_00 autolearn=no SpamAssassin version=3.0.3 -3.3 ALL_TRUSTED Did not pass through any untrusted hosts -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1038 Lines: 32 * Pierre Peiffer wrote: > The modified hackbench is available here: > > http://www.bullopensource.org/posix/pi-futex/hackbench_pth.c cool! > I've run this bench 1000 times with pipe and 800 groups. > Here are the results: > > Test1 - with simple list (i.e. without any futex patches) > ========================================================= > Latency (s) min max avg stddev > 26.67 27.89 27.14 0.19 > Test2 - with plist (i.e. with only patch 1/4 as is) > 26.87 28.18 27.30 0.18 > Test3 - with plist but all SHED_OTHER registered > 26.74 27.84 27.16 0.18 ok, seems like the last one is the winner - it's the same as unmodified, within noise. Ingo - 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/