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Message-ID: <20070427201235.GA11170@gnuppy.monkey.org>
Date: Fri, 27 Apr 2007 13:12:35 -0700
From: Bill Huey (hui) <billh@...ppy.monkey.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andreas Dilger <adilger@...sterfs.com>,
Marat Buharov <marat.buharov@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Mike Galbraith <efault@....de>,
LKML <linux-kernel@...r.kernel.org>,
Jens Axboe <jens.axboe@...cle.com>,
"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
Alex Tomas <alex@...sterfs.com>,
"Bill Huey (hui)" <billh@...ppy.monkey.org>
Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)
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
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