From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9155 invoked by alias); 28 May 2005 23:29:00 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 8734 invoked by uid 22791); 28 May 2005 23:28:51 -0000 Received: from colo.khms.westfalen.de (HELO colo.khms.westfalen.de) (213.239.196.208) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Sat, 28 May 2005 23:28:51 +0000 Received: from khms.vpn ([10.172.192.2]:44851 helo=khms.westfalen.de ident=Debian-exim) by colo.khms.westfalen.de with esmtpsa (TLS-1.0:RSA_AES_256_CBC_SHA:32) (Exim 4.50) id 1DcAjZ-000220-0r for gcc@gcc.gnu.org; Sun, 29 May 2005 01:28:49 +0200 Received: from root (helo=khms.westfalen.de) by khms.westfalen.de with local-bsmtp (Exim 4.50) id 1DcAjV-0002C3-LC for gcc@gcc.gnu.org; Sun, 29 May 2005 01:28:45 +0200 Received: by khms.westfalen.de (CrossPoint v3.12d.kh15 R/C435); 29 May 2005 01:13:12 +0200 Date: Sun, 29 May 2005 04:37:00 -0000 From: kaih@khms.westfalen.de (Kai Henningsen) To: gcc@gcc.gnu.org Message-ID: <9Xi8IapHw-B@khms.westfalen.de> In-Reply-To: <20050521133156.668989817E@baradas.org> Subject: Re: GCC 4.1: Buildable on GHz machines only? MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii References: <17009.2368.986169.753001@cuddles.cambridge.redhat.com> <20050517210315.50DFE9842C@baradas.org> <9XGVnFwHw-B@khms.westfalen.de> <9XGVnFwHw-B@khms.westfalen.de> <20050521133156.668989817E@baradas.org> X-No-Junk-Mail: I do not want to get *any* junk mail. X-Fix-Your-Modem: +++ATS2=255&WO1 X-SW-Source: 2005-05/txt/msg01559.txt.bz2 peter@the-baradas.com (Peter Barada) wrote on 21.05.05 in <20050521133156.668989817E@baradas.org>: > >> Its a 266Mhz ColdFire v4e machine, about 263 BogoMips, 1/20 the > >> BogoMips of my workstation, and with an NFS rootfs, it gets network > > > >BogoMips are called BogoMips because they are not comparable among > >different CPUs. All they measure is how often the CPU needs to run a > >particular near-empty loop to delay a certain time. > > I know exactly what a BogoMips is. But it seems you ignore what it means. > >There usually is a small factor which can convert between BogoMips and CPU > >MHz for every CPU model. It would seem to be 1 for your ColdFire; it > >happens to be 1/2 for my Athlon (bogomips: 2287.20, cpu MHz: 1145.142). > > > >Comparisions like yours are worse than meaningless. > > I wouldn't call it meaningless. I don't have other benchmark numbers It's exactly as meaningful - slightly less, in fact - as just quoting the MHz of the chip. It doesn't tell anything interesting about what the chip can actually do with those MHz. > for the chip, and it was menat to show that it isn't a blazingly fast > processor (as compared to desktop machines). So quote the MHz and be done with it. MfG Kai