From: Josef Bacik <jbacik@fusionio.com>
To: Ben Wreder <benwreder@hotmail.com>
Cc: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: Tail packing
Date: Fri, 31 Aug 2012 11:03:19 -0400 [thread overview]
Message-ID: <20120831150319.GB4299@localhost.localdomain> (raw)
In-Reply-To: <DUB117-W3224DDE372041F789CA47FB5A60@phx.gbl>
On Fri, Aug 31, 2012 at 08:40:36AM -0600, Ben Wreder wrote:
>
> The disk format description implies that btrfs should be able to support tail packing. I just did some experimentation, and while small files are packed, it seems that files occupying more than one block are not. For example, a lot of 32769-byte files will end up taking over 36KB on average (a small excess due to the metadata itself).
>
> So just to confirm - btrfs does not currently support tail-packing, is that correct?
>
> If so, is it a planned feature?
>
It does, just only in that it can fit into a leaf block. Thanks,
Josef
next prev parent reply other threads:[~2012-08-31 15:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-31 14:40 Tail packing Ben Wreder
2012-08-31 15:03 ` Josef Bacik [this message]
2012-09-02 5:25 ` David Sterba
2012-09-03 1:23 ` Li Zefan
2012-09-03 16:49 ` David Sterba
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