From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757166AbXD0Tvw (ORCPT ); Fri, 27 Apr 2007 15:51:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756031AbXD0Tvw (ORCPT ); Fri, 27 Apr 2007 15:51:52 -0400 Received: from smtp1.linux-foundation.org ([65.172.181.25]:53055 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755938AbXD0Tvv (ORCPT ); Fri, 27 Apr 2007 15:51:51 -0400 Date: Fri, 27 Apr 2007 12:50:34 -0700 (PDT) From: Linus Torvalds To: Andreas Dilger cc: Marat Buharov , Andrew Morton , Mike Galbraith , LKML , Jens Axboe , "linux-ext4@vger.kernel.org" , Alex Tomas Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation) In-Reply-To: <20070427193130.GD5967@schatzie.adilger.int> Message-ID: References: <1177660767.6567.41.camel@Homer.simpson.net> <20070427013350.d0d7ac38.akpm@linux-foundation.org> <698310e10704270459t7663d39dp977cf055b8db9d2a@mail.gmail.com> <20070427193130.GD5967@schatzie.adilger.int> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 27 Apr 2007, Andreas Dilger wrote: > > It's true that this is a "feature" of ext3 with data=ordered (the default), > but I suspect the same thing is now true in reiserfs too. Oh, well.. Journalling sucks. I was actually _really_ hoping that somebody would come along and tell everybody that this whole journal-logging is stupid, and that it's just better to not ever re-write blocks on disk, but instead write to new blocks with version numbers (and not re-use old blocks until new versions are stable on disk). There was even somebody who did something like that for a PhD thesis, I forget the details (and it apparently died when the thesis was presumably accepted ;). Linus