From: Manoj Joseph Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation) Date: Sat, 28 Apr 2007 02:24:33 +0530 Message-ID: <46326309.3050104@gmail.com> 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=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Andreas Dilger , Marat Buharov , Andrew Morton , Mike Galbraith , LKML , Jens Axboe , "linux-ext4@vger.kernel.org" , Alex Tomas To: Linus Torvalds Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org Linus Torvalds wrote: > > 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. Go back to ext2? ;) > 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). Ah, "copy on write"! ZFS (Sun) and WAFL (NetApp) does this. Don't know about WAFL, but ZFS does logging too. -Manoj -- Manoj Joseph http://kerneljunkie.blogspot.com/