From owner-freebsd-chat@FreeBSD.ORG Wed Mar 10 17:25:43 2004 Return-Path: Delivered-To: freebsd-chat@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA92C16A4CE; Wed, 10 Mar 2004 17:25:43 -0800 (PST) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9912743D1F; Wed, 10 Mar 2004 17:25:42 -0800 (PST) (envelope-from doconnor@gsoft.com.au) Received: from inchoate.gsoft.com.au (localhost [127.0.0.1]) (authenticated bits=0) by cain.gsoft.com.au (8.12.9/8.12.8) with ESMTP id i2B1PcQ9057806; Thu, 11 Mar 2004 11:55:39 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: freebsd-chat@freebsd.org Date: Thu, 11 Mar 2004 11:55:39 +1030 User-Agent: KMail/1.6 References: <404FAC50.6070603@pythonemproject.com> In-Reply-To: <404FAC50.6070603@pythonemproject.com> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200403111155.39591.doconnor@gsoft.com.au> X-Spam-Score: -1.5 () CARRIAGE_RETURNS,IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES,SPAM_PHRASE_00_01,USER_AGENT X-Scanned-By: MIMEDefang 2.16 (www . roaringpenguin . com / mimedefang) cc: Rob cc: chat@freebsd.org Subject: Re: What makes Centrino so fast? X-BeenThere: freebsd-chat@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Non technical items related to the community List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Mar 2004 01:25:43 -0000 On Thu, 11 Mar 2004 10:31, Rob wrote: > I have my own benchmark program that I use for number crunching. > It uses a mixture of Python and Numeric Python. > > Athlon 2166Mhz as reported by OS: 2m38.7s > Intel Centrino Pentium 1700 Mhz: 2m17s > > Is it just compiler optimization at play? Here's an interesting article on it -> http://arstechnica.com/cpu/004/pentium-m/pentium-m-1.html but in short.. better branch prediction, and micro-architecture improvments in general, and a slightly longer pipeline (for higher clocks vs a PIII) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 9A8C 569F 685A D928 5140 AE4B 319B 41F4 5D17 FDD5