From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 19 Sep 2001 16:52:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 19 Sep 2001 16:52:26 -0400 Received: from mail.pha.ha-vel.cz ([195.39.72.3]:34313 "HELO mail.pha.ha-vel.cz") by vger.kernel.org with SMTP id ; Wed, 19 Sep 2001 16:52:11 -0400 Date: Wed, 19 Sep 2001 22:52:34 +0200 From: Vojtech Pavlik To: Petr Vandrovec Cc: Arjan van de Ven , linux-kernel@vger.kernel.org Subject: Re: [PATCH] Athlon bug stomper. Pls apply. Message-ID: <20010919225234.C3775@suse.cz> In-Reply-To: <3EDB9E14576@vcnet.vc.cvut.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3EDB9E14576@vcnet.vc.cvut.cz>; from VANDROVE@vc.cvut.cz on Wed, Sep 19, 2001 at 09:15:17PM +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 19, 2001 at 09:15:17PM +0000, Petr Vandrovec wrote: > On 19 Sep 01 at 19:55, Arjan van de Ven wrote: > > > > Ok but that part is simple: > > > > run > > > > http://www.fenrus.demon.nl/athlon.c > > Small question - is it OK that 'faster_copy' is faster than > 'even_faster'? By only few percents, but... It is dual cpu Tyan, > with two AMD MP 1.2MHz, with 1022:700C AMD hostbridge. I'll > check KT133 at home if I'll remember... Same here. In a quite number of cases, even_faster is actually slower. Not always, though. I suspect the measurement is not really exact. > Thanks, > Petr Vandrovec > vandrove@vc.cvut.cz > > > Athlon test program $Id: fast.c,v 1.6 2000/09/23 09:05:45 arjan Exp $ > clear_page() tests > clear_page function 'warm up run' took 13967 cycles per page > clear_page function '2.4 non MMX' took 9298 cycles per page > clear_page function '2.4 MMX fallback' took 9284 cycles per page > clear_page function '2.4 MMX version' took 8508 cycles per page > clear_page function 'faster_clear_page' took 4016 cycles per page > clear_page function 'even_faster_clear' took 3916 cycles per page > > copy_page() tests > copy_page function 'warm up run' took 15118 cycles per page > copy_page function '2.4 non MMX' took 17002 cycles per page > copy_page function '2.4 MMX fallback' took 16978 cycles per page > copy_page function '2.4 MMX version' took 15163 cycles per page > copy_page function 'faster_copy' took 8569 cycles per page > copy_page function 'even_faster' took 8805 cycles per page > - > 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/ -- Vojtech Pavlik SuSE Labs