From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266831AbUBMO1Y (ORCPT ); Fri, 13 Feb 2004 09:27:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267002AbUBMO1Y (ORCPT ); Fri, 13 Feb 2004 09:27:24 -0500 Received: from mail.shareable.org ([81.29.64.88]:44418 "EHLO mail.shareable.org") by vger.kernel.org with ESMTP id S266831AbUBMO1X (ORCPT ); Fri, 13 Feb 2004 09:27:23 -0500 Date: Fri, 13 Feb 2004 14:27:19 +0000 From: Jamie Lokier To: Daniel Blueman Cc: linux-kernel@vger.kernel.org Subject: Re: File system performance, hardware performance, ext3, 3ware RAID1, etc. Message-ID: <20040213142719.GA28100@mail.shareable.org> References: <9792.1076675029@www11.gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9792.1076675029@www11.gmx.net> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Daniel Blueman wrote: > many modern IDE disks and > controllers also have tagged command queuing, so it is even more of a corner case. Linux doesn't use tagged command queueing, though - the code has been disabled for some time. I thought the TCQ stuff was disabled because only very few disks supported it and the code wasn't reliable. Yet you say many modern disks support it? -- Jamie