From: "Jörn Engel" <joern@lazybastard.org>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Juan Piernas Canovas <piernas@ditec.um.es>,
Jan Engelhardt <jengelh@linux01.gwdg.de>,
sfaibish <sfaibish@emc.com>,
kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [ANNOUNCE] DualFS: File System with Meta-data and Data Separation
Date: Sat, 17 Feb 2007 15:11:08 +0000 [thread overview]
Message-ID: <20070217151108.GA301@lazybastard.org> (raw)
In-Reply-To: <45D642A4.5010009@tmr.com>
On Fri, 16 February 2007 18:47:48 -0500, Bill Davidsen wrote:
> >
> Actually I am interested in the common case, where the machine is not
> out of space, or memory, or CPU, but when it is appropriately sized to
> the workload. Not that I lack interest in corner cases, but the "running
> flat out" case doesn't reflect case where there's enough hardware, now
> the o/s needs to use it well.
There is one detail about this specific corner case you may be missing.
Most log-structured filesystems don't just drop in performance - they
can run into a deadlock and the only recovery from this is the lovely
backup-mkfs-restore procedure.
If it was just performance, I would agree with you.
Jörn
--
He that composes himself is wiser than he that composes a book.
-- B. Franklin
next prev parent reply other threads:[~2007-02-17 16:35 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-11 3:06 [ANNOUNCE] DualFS: File System with Meta-data and Data Separation Sorin Faibish
2007-02-14 21:10 ` sfaibish
2007-02-14 21:57 ` Jan Engelhardt
2007-02-15 18:38 ` Juan Piernas Canovas
2007-02-15 20:09 ` Jörn Engel
2007-02-15 22:59 ` Juan Piernas Canovas
2007-02-16 9:13 ` Jörn Engel
2007-02-16 11:05 ` Benny Amorsen
2007-02-16 23:47 ` Bill Davidsen
2007-02-17 15:11 ` Jörn Engel [this message]
2007-02-17 18:10 ` Bill Davidsen
2007-02-17 18:36 ` Jörn Engel
2007-02-17 20:47 ` Sorin Faibish
2007-02-18 5:59 ` Jörn Engel
2007-02-18 12:46 ` Jörn Engel
2007-02-19 23:57 ` Juan Piernas Canovas
2007-02-20 0:10 ` Bron Gondwana
2007-02-20 0:30 ` Jörn Engel
2007-02-21 4:36 ` Juan Piernas Canovas
2007-02-21 12:37 ` Jörn Engel
2007-02-21 18:31 ` Juan Piernas Canovas
2007-02-21 19:25 ` Jörn Engel
2007-02-22 4:30 ` Juan Piernas Canovas
2007-02-22 16:25 ` Jörn Engel
2007-02-22 19:57 ` Juan Piernas Canovas
2007-02-23 13:26 ` Jörn Engel
2007-02-24 22:35 ` Sorin Faibish
2007-02-25 2:41 ` Juan Piernas Canovas
2007-02-25 12:01 ` Jörn Engel
2007-02-26 3:48 ` Juan Piernas Canovas
2007-02-20 20:43 ` Bill Davidsen
2007-02-15 20:38 ` Andi Kleen
2007-02-15 19:46 ` Jan Engelhardt
2007-02-16 1:43 ` sfaibish
2007-02-15 21:09 ` Juan Piernas Canovas
2007-02-15 23:57 ` Andi Kleen
2007-02-16 4:57 ` Juan Piernas Canovas
2007-02-26 11:49 ` Yakov Lerner
2007-02-26 13:08 ` Matthias Schniedermeyer
2007-02-26 13:24 ` Sorin Faibish
-- strict thread matches above, loose matches on Subject: below --
2007-02-17 3:44 Adam J. Richter
2007-02-17 3:59 Adam J. Richter
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