Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752809AbZD1TP2 (ORCPT ); Tue, 28 Apr 2009 15:15:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752344AbZD1TPK (ORCPT ); Tue, 28 Apr 2009 15:15:10 -0400 Received: from smtp.ultrahosting.com ([74.213.174.254]:56839 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752170AbZD1TPI (ORCPT ); Tue, 28 Apr 2009 15:15:08 -0400 Date: Tue, 28 Apr 2009 15:05:09 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@qirst.com To: Eric Dumazet cc: linux kernel , Andi Kleen , David Miller , jesse.brandeburg@intel.com, netdev@vger.kernel.org, haoki@redhat.com, mchan@broadcom.com, davidel@xmailserver.org, Ingo Molnar Subject: Re: [PATCH] poll: Avoid extra wakeups in select/poll In-Reply-To: <49F71B63.8010503@cosmosbay.com> Message-ID: References: <49F3308B.1030507@cosmosbay.com> <20090426.020411.157511269.davem@davemloft.net> <49F43B8F.2050907@cosmosbay.com> <87ab60rh8t.fsf@basil.nowhere.org> <49F71B63.8010503@cosmosbay.com> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2608 Lines: 70 For the udpping test load these patches have barely any effect: git2p1 is the first version of the patch git2p2 is the second version (this one) Same CPU Kernel Test 1 Test 2 Test 3 Test 4 Average 2.6.22 83.03 82.9 82.89 82.92 82.935 2.6.23 83.35 82.81 82.83 82.86 82.9625 2.6.24 82.66 82.56 82.64 82.73 82.6475 2.6.25 84.28 84.29 84.37 84.3 84.31 2.6.26 84.72 84.38 84.41 84.68 84.5475 2.6.27 84.56 84.44 84.41 84.58 84.4975 2.6.28 84.7 84.43 84.47 84.48 84.52 2.6.29 84.91 84.67 84.69 84.75 84.755 2.6.30-rc2 84.94 84.72 84.69 84.93 84.82 2.6.30-rc3 84.88 84.7 84.73 84.89 84.8 2.6.30-rc3-git2p1 84.89 84.77 84.79 84.85 84.825 2.6.30-rc3-git2p2 84.91 84.79 84.78 84.8 84.82 Same Core Kernel Test 1 Test 2 Test 3 Test 4 Average 2.6.22 84.6 84.71 84.52 84.53 84.59 2.6.23 84.59 84.5 84.33 84.34 84.44 2.6.24 84.28 84.3 84.38 84.28 84.31 2.6.25 86.12 85.8 86.2 86.04 86.04 2.6.26 86.61 86.46 86.49 86.7 86.565 2.6.27 87 87.01 87 86.95 86.99 2.6.28 86.53 86.44 86.26 86.24 86.3675 2.6.29 85.88 85.94 86.1 85.69 85.9025 2.6.30-rc2 86.03 85.93 85.99 86.06 86.0025 2.6.30-rc3 85.73 85.88 85.67 85.94 85.805 2.6.30-rc3-git2p1 86.11 85.8 86.03 85.92 85.965 2.6.30-rc3-git2p2 86.04 85.96 85.89 86.04 85.9825 Same Socket Kernel Test 1 Test 2 Test 3 Test 4 Average 2.6.22 90.08 89.72 90 89.9 89.925 2.6.23 89.72 90.1 89.99 89.86 89.9175 2.6.24 89.18 89.28 89.25 89.22 89.2325 2.6.25 90.83 90.78 90.87 90.61 90.7725 2.6.26 90.51 91.25 91.8 91.69 91.3125 2.6.27 91.98 91.93 91.97 91.91 91.9475 2.6.28 91.72 91.7 91.84 91.75 91.7525 2.6.29 89.85 89.85 90.14 89.9 89.935 2.6.30-rc2 90.78 90.8 90.87 90.73 90.795 2.6.30-rc3 90.84 90.94 91.05 90.84 90.9175 2.6.30-rc3-git2p1 90.87 90.95 90.86 90.92 90.9 2.6.30-rc3-git2p2 91.09 91.01 90.97 91.06 91.0325 Different Socket Kernel Test 1 Test 2 Test 3 Test 4 Average 2.6.22 91.64 91.65 91.61 91.68 91.645 2.6.23 91.9 91.84 91.92 91.83 91.873 2.6.24 91.33 91.24 91.42 91.38 91.343 2.6.25 92.39 92.04 92.3 92.23 92.240 2.6.26 90.64 90.57 90.6 90.08 90.473 2.6.27 91.14 91.26 90.9 91.09 91.098 2.6.28 92.3 91.92 92.3 92.23 92.188 2.6.29 90.57 89.83 89.9 90.41 90.178 2.6.30-rc2 90.59 90.97 90.27 91.69 90.880 2.6.30-rc3 92.08 91.32 91.21 92.06 91.668 2.6.30-rc3-git2p1 91.46 91.38 91.92 91.03 91.448 2.6.30-rc3-git2p2 91.39 90.47 90.03 90.62 90.628 -- 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/