Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932354AbWAKAPd (ORCPT ); Tue, 10 Jan 2006 19:15:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932359AbWAKAPd (ORCPT ); Tue, 10 Jan 2006 19:15:33 -0500 Received: from mta09-winn.ispmail.ntl.com ([81.103.221.49]:504 "EHLO mta09-winn.ispmail.ntl.com") by vger.kernel.org with ESMTP id S932354AbWAKAPc (ORCPT ); Tue, 10 Jan 2006 19:15:32 -0500 Date: Wed, 11 Jan 2006 00:15:28 +0000 (GMT) From: Ken Moffat To: Jeffrey Hundstad cc: Jesper Juhl , Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: 64-bit vs 32-bit userspace/kernel benchmark? Was: Athlon 64 X2 cpuinfo oddities In-Reply-To: <43C417A5.6070104@mnsu.edu> Message-ID: References: <9a8748490601091218m1ff0607h79207cfafe630864@mail.gmail.com> <9a8748490601091812x24aefae3oc0c6750c5321c3ab@mail.gmail.com> <200601100336.31677.ak@suse.de> <9a8748490601100129h2ce343f5kc9bc22885f01831a@mail.gmail.com> <43C417A5.6070104@mnsu.edu> MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463809536-78232903-1136938528=:14407" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1412 Lines: 39 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463809536-78232903-1136938528=:14407 Content-Type: TEXT/PLAIN; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8BIT On Tue, 10 Jan 2006, Jeffrey Hundstad wrote: > > Has anyone done any actual benchmark tests that show 64-bit vs 32-bit > environments/distributions with Athlon64 processors. If so, I love to see > the results. I too elected to stick with 32-bit, using the same > reasoning/guessing above. > Some months ago, on a 2GHz San Diego (4000+) I ran some tests using linuxfromscratch with 2.6.11.11, 1 GB PC3200, ext3, 5 runs of each (a) specific oggenc and photo manipulations in parallel 64-bit kernel, total time 246.053 to 257.601 sec, avg 250.022, std dev 4.62415 32-bit kernel, total time 247.572 to 258.963 sec, avg 252.405, std dev 4.22909 pure64, total time 172.942 to 177.532 sec, avg 174.582, std dev 1.90047 At that time, I hadn't built multilib. Ken -- das eine Mal als Trag?die, das andere Mal als Farce ---1463809536-78232903-1136938528=:14407-- - 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/