Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758306AbYCVXix (ORCPT ); Sat, 22 Mar 2008 19:38:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755123AbYCVXiq (ORCPT ); Sat, 22 Mar 2008 19:38:46 -0400 Received: from sovereign.computergmbh.de ([85.214.69.204]:42153 "EHLO sovereign.computergmbh.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755021AbYCVXip (ORCPT ); Sat, 22 Mar 2008 19:38:45 -0400 Date: Sun, 23 Mar 2008 00:38:44 +0100 (CET) From: Jan Engelhardt To: Bernd Schubert cc: linux-kernel@vger.kernel.org Subject: Re: deadline unfairness In-Reply-To: <200803221225.26728.bernd-schubert@gmx.de> Message-ID: References: <200803221225.26728.bernd-schubert@gmx.de> User-Agent: Alpine 1.00 (LNX 882 2007-12-20) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 740 Lines: 17 On Mar 22 2008 12:25, Bernd Schubert wrote: > > some it seems the deadline scheduler is rather unfair. Below is an example > of md-raid6 initialization of md3, md4 and md5. All three md-devices > do share the same blockdevices (we have patched md to allow > parallel rebuild of shared block devices, since for us the cpu is the > bottleneck and not the block device). Could you share this patch? It would be really intersting for use with fast based block devices (flash, ramdisk, and such)! -- 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/