From: Linus Torvalds Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation) Date: Fri, 27 Apr 2007 12:50:34 -0700 (PDT) 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 Cc: Marat Buharov , Andrew Morton , Mike Galbraith , LKML , Jens Axboe , "linux-ext4@vger.kernel.org" , Alex Tomas To: Andreas Dilger Return-path: 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 In-Reply-To: <20070427193130.GD5967@schatzie.adilger.int> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.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