From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750835AbVIUSxi (ORCPT ); Wed, 21 Sep 2005 14:53:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751001AbVIUSxi (ORCPT ); Wed, 21 Sep 2005 14:53:38 -0400 Received: from smtp.osdl.org ([65.172.181.4]:32159 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750835AbVIUSxh (ORCPT ); Wed, 21 Sep 2005 14:53:37 -0400 Date: Wed, 21 Sep 2005 11:52:56 -0700 From: Andrew Morton To: Hans Reiser Cc: linux-kernel@vger.kernel.org, reiserfs-list@namesys.com Subject: Re: latest patches degrade reiser4 performance substantially Message-Id: <20050921115256.6a11ab8d.akpm@osdl.org> In-Reply-To: <4331A9BD.5030006@namesys.com> References: <4331A9BD.5030006@namesys.com> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hans Reiser wrote: > > At the this time we have no idea which patch is responsible, probably in > a day or two we'll have a patch to fix it. > OK. I assume this performance change is demonstrable in just 2.6.14-rc2+reiser4? Beware that there are other changes in the -mm lineup which might cause regressions. Notably mm-try-to-allocate-higher-order-pages-in-rmqueue_bulk.patch and per-task-predictive-write-throttling-1.patch per-task-predictive-write-throttling-1-tweaks.patch