Received: with ECARTIS (v1.0.0; list linux-xfs); Tue, 04 Oct 2005 08:21:44 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id j94FLbO0003149 for ; Tue, 4 Oct 2005 08:21:38 -0700 Received: from Relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 7DBE41C046; Tue, 4 Oct 2005 17:18:42 +0200 (CEST) To: Eric Sandeen Cc: linux-xfs@oss.sgi.com, dmarkic@hotmail.com Subject: Re: The XFS real-time subvolume in Linux References: <434298D3.4060501@sgi.com> From: Andi Kleen Date: 04 Oct 2005 17:18:41 +0200 In-Reply-To: <434298D3.4060501@sgi.com> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-archive-position: 6312 X-ecartis-version: Ecartis v1.0.0 Sender: linux-xfs-bounce@oss.sgi.com Errors-to: linux-xfs-bounce@oss.sgi.com X-original-sender: ak@suse.de Precedence: bulk X-list: linux-xfs Content-Length: 495 Lines: 15 Eric Sandeen writes: > > That is basically true, yes. There is a non-free GRIOV2 product in > use with CXFS, but for your purposes, I think it is safe to say that > there is no standalone GRIO equivalent on Linux. It's not. In fact it's a standard feature now. The CFQ2 IO scheduler has IO priorities settable with ionice, including a RT class with 8 priorities. It's not available in SLES9 though, only in newer kernels (2.6.13+) and SUSE releases (like SL10.0) -Andi