From owner-freebsd-performance@FreeBSD.ORG Fri Dec 14 03:19:08 2007 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9B34516A421 for ; Fri, 14 Dec 2007 03:19:08 +0000 (UTC) (envelope-from shantanu_ghosh@yahoo.com) Received: from web54505.mail.re2.yahoo.com (web54505.mail.re2.yahoo.com [206.190.49.155]) by mx1.freebsd.org (Postfix) with SMTP id 41C4513C467 for ; Fri, 14 Dec 2007 03:19:08 +0000 (UTC) (envelope-from shantanu_ghosh@yahoo.com) Received: (qmail 10792 invoked by uid 60001); 14 Dec 2007 03:19:07 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=FsCQml2US3k7txuQgusUn+AmYjAJBB7lHSVomfrYDdn7smKTCvb/PlaG9zGYVftEOeaJDLA3rg2VLP0/LMXGEc8fkjApOTwQfqSi05gRTy661KRINzhP6ukhTsdcIKleAAaFEK7fj/9yOQvQMdK6iw3Yn6RpmVtIY9A4Fk9vqTU=; X-YMail-OSG: _LNhdXsVM1l_4ifUe5GJB1UkOfA6DIfx_299C1xZKA_6HJJfUc7uRWT9_DHC48RmR6EhnQx50iNcSvWnmLPDQpUbxxWlWXgpdt5k6vPOS2Sy2CAjGoU6QXTNgkdD Received: from [203.145.181.122] by web54505.mail.re2.yahoo.com via HTTP; Thu, 13 Dec 2007 19:19:07 PST Date: Thu, 13 Dec 2007 19:19:07 -0800 (PST) From: Shantanu Ghosh To: Ivan Voras , freebsd-performance@freebsd.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <391084.10339.qm@web54505.mail.re2.yahoo.com> Cc: Subject: Re: freebsd vs linux: performance problem X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Dec 2007 03:19:08 -0000 --- Ivan Voras wrote: > Shantanu Ghosh wrote: > > Hi, > > > > I am running FreeBSD 7.0 Beta1 and Linux FC6 on two identical > pieces of > > hardware - Dell poweredge with intel core2 duo. Each system has 4 > CPUs. > > > > Now, in simple memory access operations, I see the freebsd system > being > > noticably slower than the linux system. A simple C program that > copies > > from one memory buffer to another, when executed in a loop executes > > between 10-30% slower on freebsd, as compared to linux. The > assembly > > code of the program used for testing is identical in both the > cases. > > AMD64 or i386 mode? Sorry, forgot to mention - amd64. Similarly, x86_64 in linux. > > Do they also have the same amount of memory? How much? Yes, 8gb each. Regards, Shantanu. ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping