From: Bill Huey (hui) 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 13:12:35 -0700 Message-ID: <20070427201235.GA11170@gnuppy.monkey.org> 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: Andreas Dilger , Marat Buharov , Andrew Morton , Mike Galbraith , LKML , Jens Axboe , "linux-ext4@vger.kernel.org" , Alex Tomas , "Bill Huey (hui)" To: Linus Torvalds Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Fri, Apr 27, 2007 at 12:50:34PM -0700, Linus Torvalds wrote: > 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 ;). That sounds a whole lot like NetApp's WAFL file system and is heavily patented. bill