Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 2 Nov 2002 22:37:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 2 Nov 2002 22:37:28 -0500 Received: from pop015pub.verizon.net ([206.46.170.172]:43665 "EHLO pop015.verizon.net") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Sat, 2 Nov 2002 22:37:27 -0500 Date: Sat, 02 Nov 2002 21:43:23 -0500 From: Akira Tsukamoto To: Andrew Morton Subject: Re: [PATCH] 2/2 2.5.45 cleanup & add original copy_ro/from_user Cc: linux-kernel@vger.kernel.org, Hirokazu Takahashi In-Reply-To: <3DC415DA.29D22E92@digeo.com> References: <20021102060423.032A.AT541@columbia.edu> <3DC415DA.29D22E92@digeo.com> Message-Id: <20021102214117.3797.AT541@columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8BIT X-Mailer: Becky! ver. 2.05.06 X-Authentication-Info: Submitted using SMTP AUTH LOGIN at pop015.verizon.net from [138.89.32.225] at Sat, 2 Nov 2002 21:43:51 -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 862 Lines: 23 On Sat, 02 Nov 2002 10:13:46 -0800 Andrew Morton mentioned: > Well you could make it dependent on CONFIG_SLOW_KERNEL ;) >From my patch, about the speed: for PIII/4 CPU -> no change. using the same 2.5.45 copy. for old i386 -> more optimal. for Athlon -> 2.5.45 does not use unrolled copy for it either. I am away for a while but I grew up in Japan and just wanted to save some rooms for a embedded system like below. http://linux.ascii24.com/linux/news/today/2000/05/22/imageview/images461056.jpg.html The phisical size(not kernel) is about 5cm*5cm. Is your copy function suitable in this case? - 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/