From: Christoph Hellwig <hch@infradead.org>
To: Tomasz Chmielewski <mangoo@wpkg.org>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Rename BTRfs to MuchSlowerFS ?
Date: Mon, 5 Sep 2011 12:25:21 -0400 [thread overview]
Message-ID: <20110905162521.GA29124@infradead.org> (raw)
In-Reply-To: <4E64F77B.1090401@wpkg.org>
On Mon, Sep 05, 2011 at 06:23:23PM +0200, Tomasz Chmielewski wrote:
> > That's because dpkg is known for using (f)sync very heavily. btrfs
> >honours the sync request in all cases, so it's much much slower than
> >ext3, which doesn't.
>
> Hmm, is it really the case with ext3/ext4 (ignoring fsync in some cases)?
>
> Sounds like a bug in ext3/ext4 then.
>
> Is it documented anywhere where ext3/ext4 would just silently ignore fsync?
They don't. Unteil recently ext3 and reiserfs would not flush the
disk caches unless enabled by a mount option, but even that has recently
been fixed.
next prev parent reply other threads:[~2011-09-05 16:25 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-05 16:23 Rename BTRfs to MuchSlowerFS ? Tomasz Chmielewski
2011-09-05 16:25 ` Christoph Hellwig [this message]
2011-09-05 16:29 ` Hugo Mills
2011-09-08 7:04 ` youagree
-- strict thread matches above, loose matches on Subject: below --
2011-09-05 13:51 Swâmi Petaramesh
2011-09-05 14:00 ` Hugo Mills
2011-09-05 14:20 ` Roman Mamedov
2011-09-05 17:10 ` Elric Milon
2011-09-05 14:17 ` David McBride
2011-09-05 19:25 ` Sergei Trofimovich
2011-09-06 15:30 ` Swâmi Petaramesh
2011-09-06 17:11 ` Fajar A. Nugraha
2011-09-07 14:15 ` Swâmi Petaramesh
2011-09-15 19:37 ` Felix Blanke
2011-09-15 22:16 ` Fajar A. Nugraha
2011-09-16 6:21 ` Maciej Marcin Piechotka
2011-09-16 6:42 ` Fajar A. Nugraha
2011-09-16 8:39 ` Maciej Marcin Piechotka
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