Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755368AbYCFRaF (ORCPT ); Thu, 6 Mar 2008 12:30:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752498AbYCFR3r (ORCPT ); Thu, 6 Mar 2008 12:29:47 -0500 Received: from hu-out-0506.google.com ([72.14.214.226]:23082 "EHLO hu-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751140AbYCFR3q (ORCPT ); Thu, 6 Mar 2008 12:29:46 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=J6qrNRrTKCLul6V1AR5xY3Gebm3QeiS+N4RSLPr2mptJ9ZhuLMP+mxUbQebStLbJ6ZiGbrDqlzmvz5uhB7vo9UidB2X3VHQUd8WopNY00uDai5gDgpEIF3P+a2uAtRESxGh+EdAhXQKzdd6OEQ1qQV90j2cEi1W9UcG42U0zhb8= Message-ID: Date: Thu, 6 Mar 2008 22:59:44 +0530 From: "debian developer" To: "Stephen Cuppett" Subject: Re: Performance versus FreeBSD 7.0 Cc: linux-kernel@vger.kernel.org, "Ingo Molnar" , "Linus Torvalds" In-Reply-To: <316a20a40802290538g55c4171y7cdbcb3a9c1d0f1b@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <316a20a40802290538g55c4171y7cdbcb3a9c1d0f1b@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1997 Lines: 47 On Fri, Feb 29, 2008 at 7:08 PM, Stephen Cuppett wrote: > Not lobbing the first artillery shell by any means, but I saw this > bullet on the FreeBSD release announcement: > > # Dramatic improvements in performance and SMP scalability shown by > various database and other benchmarks, in some cases showing peak > performance improvements as high as 350% over FreeBSD 6.X under normal > loads and 1500% at high loads. When compared with the best performing > Linux kernel (2.6.22 or 2.6.24) performance is 15% better. Results are > from benchmarks used to analyze and improve system performance, > results with your specific work load may vary. Some of the changes > that contribute to this improvement are: > > * The 1:1 libthr threading model is now the default. > * Finer-grained IPC, networking, and scheduler locking. > * A major focus on optimizing the SMP architecture that was put in > place during the 5.x and 6.x branches. > > Some benchmarks show linear scaling up to 8 CPUs. Many workloads see a > significant performance improvement with multicore systems. > > The whole thing is available at: > > http://www.freebsd.org/releases/7.0R/announce.html > > However, their site is pretty scant on details about those benchmarks. > Was just curious if anybody on this list had any input or links on > the metrics, the hardware, the workloads, how was Linux or FreeBSD > tuned, knew more information, could point me to the stats.... The benchmarks are posted here http://people.freebsd.org/~kris/scaling/7.0%20Preview.pdf page no 17-20. A funny quote on CFS from above (page 19) "The new CFS scheduler in 2.6.23 is "Completely Fair"...to FreeBSD" :) good to see some competition at last :D -- 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/