linux-ext4 - Re: [PATCH 2/3] fs: Remove ext3 filesystem driver

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Date:	Tue, 28 Jul 2015 15:50:04 -0600
From:	Bruce Guenter <bruce@...roubled.org>
To:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/3] fs: Remove ext3 filesystem driver

On Wed, Jul 15, 2015 at 01:35:09PM -0400, Austin S Hemmelgarn wrote:
> On 2015-07-15 12:58, Andrew Morton wrote:
> > Also, what's the status of ext4's data=journal?  It's the hardest ext3
> > mode for the rest of the kernel to support and I suspect hardly anyone
> > uses it.
> I use it, as do some other people I know, but only for stuff that pretty 
> much needs to be 100% guaranteed to be consistent after a power failure. 
>   It is _very_ slow, but it does work correctly based on my recent 
> experience.

It is also a benefit for workloads that are heavy on sync writes to
(relatively) small files, such as mail servers. At least, it used to be
considerably faster than data=ordered the last time I benchmarked it.

-- 
Bruce Guenter <bruce@...roubled.org>                http://untroubled.org/

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