Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261397AbTIKQzY (ORCPT ); Thu, 11 Sep 2003 12:55:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261398AbTIKQzX (ORCPT ); Thu, 11 Sep 2003 12:55:23 -0400 Received: from mail.jlokier.co.uk ([81.29.64.88]:44433 "EHLO mail.jlokier.co.uk") by vger.kernel.org with ESMTP id S261397AbTIKQzV (ORCPT ); Thu, 11 Sep 2003 12:55:21 -0400 Date: Thu, 11 Sep 2003 17:55:15 +0100 From: Jamie Lokier To: richard.brunner@amd.com Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata Message-ID: <20030911165515.GD29532@mail.jlokier.co.uk> References: <99F2150714F93F448942F9A9F112634C0638B197@txexmtae.amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <99F2150714F93F448942F9A9F112634C0638B197@txexmtae.amd.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 615 Lines: 16 richard.brunner@amd.com wrote: > Don't worry! I am pretty certain the patch won't impact the > performance of the 2.6 kernel on processors from other vendors ;-) is_prefetch() will slow down programs which depend on lots of SEGV signals: those garbage collectors which use mprotect and SIGSEGV to track dirty pages. I wonder how much it will slow them down. -- Jamie - 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/