From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758161AbZBSUtV (ORCPT ); Thu, 19 Feb 2009 15:49:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757717AbZBSUtG (ORCPT ); Thu, 19 Feb 2009 15:49:06 -0500 Received: from rhlx01.hs-esslingen.de ([129.143.116.10]:40768 "EHLO rhlx01.hs-esslingen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754196AbZBSUtE (ORCPT ); Thu, 19 Feb 2009 15:49:04 -0500 Date: Thu, 19 Feb 2009 21:49:02 +0100 From: Andreas Mohr To: Jose Luis Marchetti Cc: linux-kernel@vger.kernel.org Subject: Re: Is interrupt priority supported ? Message-ID: <20090219204902.GA3990@rhlx01.hs-esslingen.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <657201.46675.qm@web34402.mail.mud.yahoo.com> X-Priority: none User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, it has been for a looong time (those things tend to almost get outdated already - witness the floppy controller misery): # apt-cache show hwtools Package: hwtools Status: install ok installed Priority: optional Section: utils Installed-Size: 312 Maintainer: Pierre Ancelot Architecture: i386 Version: 0.8-5.1 Depends: debconf, libc6 (>= 2.3.5-1) Suggests: sysutils, hdparm, scsitools, memtest86 Conffiles: /etc/init.d/hwtools 137e3fbdc26d90bec745a36d1ffd8661 Description: collection of tools for low-level hardware management This package is a collection of tools useful for hardware troubleshooting and optimization (for ix86 machines): . irqtune: adjusts priority of interrupts (improves serial performance), scanport: scans for hardware not already handled by Linux drivers, memmxtest: a real mode memory test, with MMX support. You may want to look at package memtest86 as well. qic-02 driver and configuration utilities. Adds the qic-02 tapes support . Be aware that these tools require some knowledge of what are they doing to be used properly, otherwise they may cause damage to your system. . Some programs that were previously part of this package have been moved to their own packages (hdparm, scsitools, memtest86) I don't have any recent experience with irqtune myself, though, and I cannot authoritatively state that it actually works at the moment, but I'd be relatively surprised if it didn't. You might want to enable some unfortunately often still default-disabled hardware transceiver offloading of Ethernet frames, too, via ethtool -k or so, to possibly reduce latency. Plus PCI latency timings, via setpci or so (but that probably won't matter). HTHHAND, Andreas Mohr