Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265593AbTFXAhu (ORCPT ); Mon, 23 Jun 2003 20:37:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265596AbTFXAhu (ORCPT ); Mon, 23 Jun 2003 20:37:50 -0400 Received: from neon-gw-l3.transmeta.com ([63.209.4.196]:48654 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id S265593AbTFXAhr (ORCPT ); Mon, 23 Jun 2003 20:37:47 -0400 To: linux-kernel@vger.kernel.org From: "H. Peter Anvin" Subject: Re: Crusoe's performance on linux? Date: 23 Jun 2003 17:51:30 -0700 Organization: Transmeta Corporation, Santa Clara CA Message-ID: References: <3EF1E6CD.4040800@thai.com> <3EF2144D.5060902@thai.com> <20030619221126.B3287@ucw.cz> <3EF67AD4.4040601@thai.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Disclaimer: Not speaking for Transmeta in any way, shape, or form. Copyright: Copyright 2003 H. Peter Anvin - All Rights Reserved Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1858 Lines: 46 Followup to: <3EF67AD4.4040601@thai.com> By author: Samphan Raruenrom In newsgroup: linux.dev.kernel > > Vojtech Pavlik wrote: > > Could you a test just for me? Take vanilla 2.4.21 and then > > make oldconfig; make dep; time make bzImage > > That's basically what I want to know how long will take, since > > it's one of the most common time consuming tasks the thing will > > have to handle. > Done! Here're the results:- > > Desktop - Pentium III 1 G Hz 754 MB -> 10.x min. > Tablet PC - Crusoe TM5800 1 GHz 731 MB -> 17.x min. > > From freshdiagnos benchmack, the TPC has about 2x faster RAM. > I use tmpfs for the whole process so disk speed didn't count. > Both test run without X or any foreground process using > 2.4.21-ac1 and RedHat kernel. > > What do you think? > Shouldn't TM5800 with 4-wide VLIW engine and 64 registers, > working on a single task, run as fast as a Pentium III? > Why it take 70% longer for such small process (make+gcc+as)! > There must be something wrong. > I just realized something ... newer kernels if you do "make oldconfig" without a .config file in the directory will look for one in /boot. This could greatly skew the result. Please create a .config and use it on both systems to make sure that it's not an issue of what is being compiled in. I'm not saying that's the problem, I'm just trying to figure out what the heck is going on here. -hpa -- at work, in private! "Unix gives you enough rope to shoot yourself in the foot." Architectures needed: ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64 - 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/