Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 10 Dec 2002 11:11:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 10 Dec 2002 11:11:10 -0500 Received: from irongate.swansea.linux.org.uk ([194.168.151.19]:7360 "EHLO irongate.swansea.linux.org.uk") by vger.kernel.org with ESMTP id ; Tue, 10 Dec 2002 11:10:14 -0500 Subject: Re: Why does C3 CPU downgrade in kernel 2.4.20? From: Alan Cox To: Daniel Egger Cc: Dave Jones , Joseph , Linux Kernel Mailing List In-Reply-To: <1039504941.30881.10.camel@sonja> References: <009f01c2a000$f38885d0$3716a8c0@taipei.via.com.tw> <20021210055215.GA9124@suse.de> <1039504941.30881.10.camel@sonja> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-10) Date: 10 Dec 2002 16:51:20 +0000 Message-Id: <1039539080.14302.29.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 590 Lines: 16 > Interesting. I have no clue about which C3 you're talking about here but > a VIA Ezra has all 686 instructions including cmov and thus optimising > for PPro works best for me. Well if you optimise for ppro it won't actually always work. Also the scheduling seems to be best with 486. Remember the C3 is a single issue risc processor. Alan - 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/