From: "Brian J. Murrell" <brian@interlinx.bc.ca>
To: Chester <somethingsome2000@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: efficiency of btrfs cow
Date: Wed, 23 Mar 2011 12:19:39 -0400 [thread overview]
Message-ID: <4D8A1D9B.7060706@interlinx.bc.ca> (raw)
In-Reply-To: <AANLkTikF3e2X=UK2pJmNgaTAJqR0DXymKfzr=drhC5S=@mail.gmail.com>
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On 11-03-23 11:53 AM, Chester wrote:
> I'm not a developer, but I think it goes something like this:
> btrfs doesn't write the filesystem on the entire device/partition at
> format time, rather, it dynamically increases the size of the
> filesystem as data is used. That's why formating a disk in btrfs can
> be so fast.
Indeed, this much is understood, which is why I am using btrfs fi df to
try to determine how much of the increase in raw device usage is the
dynamic allocation of metadata.
Cheers,
b.
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next prev parent reply other threads:[~2011-03-23 16:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-06 15:46 efficiency of btrfs cow Brian J. Murrell
2011-03-06 16:02 ` Fajar A. Nugraha
2011-03-06 16:11 ` Brian J. Murrell
2011-03-06 16:17 ` Calvin Walton
2011-03-06 16:18 ` Brian J. Murrell
2011-03-06 17:22 ` Freddie Cash
2011-03-06 16:06 ` Calvin Walton
2011-03-06 16:17 ` Brian J. Murrell
2011-03-23 12:39 ` Brian J. Murrell
2011-03-23 15:53 ` Chester
2011-03-23 16:19 ` Brian J. Murrell [this message]
2011-03-23 17:36 ` Kolja Dummann
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