Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262099AbVBPVzN (ORCPT ); Wed, 16 Feb 2005 16:55:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262096AbVBPVzM (ORCPT ); Wed, 16 Feb 2005 16:55:12 -0500 Received: from mail.gmx.net ([213.165.64.20]:60614 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S262093AbVBPVzD (ORCPT ); Wed, 16 Feb 2005 16:55:03 -0500 X-Authenticated: #8956447 Subject: Re: [Problem] slow write to dvd-ram since 2.6.7-bk8 From: Droebbel To: Tino Keitel Cc: linux-kernel@vger.kernel.org In-Reply-To: <20050214111819.GA7691@dose.home.local> References: <1108301794.9280.18.camel@localhost.localdomain> <20050213142635.GA2035@animx.eu.org> <20050214085320.GA4910@dose.home.local> <1108376734.9495.8.camel@localhost.localdomain> <20050214105332.GA7163@dose.home.local> <1108379351.9495.22.camel@localhost.localdomain> <20050214111819.GA7691@dose.home.local> Content-Type: text/plain Date: Wed, 16 Feb 2005 22:55:00 +0100 Message-Id: <1108590900.7407.11.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.1.5 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1266 Lines: 34 Some new information: 2.6.7 is ok, 2.6.7-mm2 is not ok, 2.6.7 with just the linus-patch from mm2 is ok, 2.6.7 with linus.patch from mm3 isn't. So I took some of the patches from the broken-out mm2 and tested them seperately. The vmscan-dont-reclaim-too-many-pages.patch led to the said reduction of writing speed. I reverse-applied it to 2.6.8.1, where it seems to solve the problem. I also reverse-applied it to the current prepatched Ubuntu-2.6.10. It helped a bit there. Some new errors since 2.6.8, as it seems... getting depressing a bit, this whole thing. If you are using 2.6.7-mm1, there is another patch with even greater impact: abs-fix.patch. Take the same + abs-fix-fix.patch from mm2. If you might have a look at the vmscan-dont-reclaim-too-many-pages.patch from http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.7/2.6.7-mm2/broken-out/, maybe you will find out something. Comparing the abs-fix patches from mm1 and mm2 might also help. This is all I can do for now. Regards David - 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/