From owner-freebsd-chat@FreeBSD.ORG  Thu Mar 11 03:27:02 2004
Return-Path: <owner-freebsd-chat@FreeBSD.ORG>
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 9DB9416A4CE
	for <chat@freebsd.org>; Thu, 11 Mar 2004 03:27:02 -0800 (PST)
Received: from haldjas.folklore.ee (Haldjas.folklore.ee [193.40.6.121])
	by mx1.FreeBSD.org (Postfix) with ESMTP id F0B4443D49
	for <chat@freebsd.org>; Thu, 11 Mar 2004 03:27:01 -0800 (PST)
	(envelope-from narvi@haldjas.folklore.ee)
Received: from haldjas.folklore.ee (localhost [127.0.0.1])
	by haldjas.folklore.ee (8.12.10/8.12.10) with ESMTP id i2BBQvUA087753;
	Thu, 11 Mar 2004 13:26:57 +0200 (EET)
	(envelope-from narvi@haldjas.folklore.ee)
Received: from localhost (narvi@localhost)i2BBQvtJ087750;
	Thu, 11 Mar 2004 13:26:57 +0200 (EET)
	(envelope-from narvi@haldjas.folklore.ee)
Date: Thu, 11 Mar 2004 13:26:57 +0200 (EET)
From: Narvi <narvi@haldjas.folklore.ee>
To: Rob <rob@pythonemproject.com>
In-Reply-To: <404FAC50.6070603@pythonemproject.com>
Message-ID: <20040311024415.R68396@haldjas.folklore.ee>
References: <404FAC50.6070603@pythonemproject.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on haldjas.folklore.ee
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
	<freebsd-chat.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-chat>,
	<mailto:freebsd-chat-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-chat>
List-Post: <mailto:freebsd-chat@freebsd.org>
List-Help: <mailto:freebsd-chat-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-chat>,
	<mailto:freebsd-chat-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Mar 2004 11:27:02 -0000


On Wed, 10 Mar 2004, 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
>

it has 1mb 1.7ghz l2 cache? it also probably has a tweaked version of the
P3 core (with sse2 added) instead of P4 core. but intel doesn't talk much
about how the centrino core is different (in non-marketing terms) from p6
(used in ppro/pii/piii) or pentium4 core.

> Is it just compiler optimization at play?
>
> Sincerely,
>
> Rob
>