From: Bruce Guenter <bruce@untroubled.org>
To: linux-ext4@vger.kernel.org
Subject: Re: [PATCH v2] ext4: Deprecate data=journal mount option
Date: Tue, 28 Jun 2011 22:49:55 -0600 [thread overview]
Message-ID: <20110629044955.GA30312@untroubled.org> (raw)
In-Reply-To: <1309260363-19012-1-git-send-email-lczerner@redhat.com>
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On Tue, Jun 28, 2011 at 01:26:03PM +0200, Lukas Czerner wrote:
> Data journalling mode (data=journal) is known to be neglected by
> developers and only minority of people is actually using it. This
> mode is also less tested than the other two modes by the developers.
>
> This creates a dangerous combination, because the option which seems
> *safer* is actually less safe the others. So this commit adds a warning
> message in case that data=journal mode is used, so the user is informed
> that the mode might be removed in the future.
When I last benchmarked it, data=journal mode was considerably faster
than the other modes for sync heavy work loads, such as mail servers.
Have there been improvements to other (safe) modes that reverse this?
--
Bruce Guenter <bruce@untroubled.org> http://untroubled.org/
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next prev parent reply other threads:[~2011-06-29 4:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-28 11:26 [PATCH v2] ext4: Deprecate data=journal mount option Lukas Czerner
2011-06-29 4:49 ` Bruce Guenter [this message]
2011-06-29 11:49 ` Lukas Czerner
2011-08-11 15:01 ` Lukas Czerner
2011-08-11 21:08 ` Andreas Dilger
2011-08-12 8:16 ` Lukas Czerner
2011-08-12 8:25 ` Ric Wheeler
2011-08-12 15:45 ` Curt Wohlgemuth
2011-08-12 16:08 ` Lukas Czerner
2011-08-12 18:13 ` Ted Ts'o
2011-08-12 20:57 ` Christoph Hellwig
2011-08-14 2:06 ` Ted Ts'o
2011-08-14 2:28 ` [PATCH] ext2,ext3,ext4: don't inherit APPEND_FL or IMMUTABLE_FL for new inodes Theodore Ts'o
2011-12-22 18:06 ` Eric Sandeen
2011-12-22 18:19 ` Ted Ts'o
2011-12-22 18:23 ` Eric Sandeen
2011-08-15 11:19 ` [PATCH v2] ext4: Deprecate data=journal mount option Jan Kara
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