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From: ching <lsching17@gmail.com>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Why btrfs inline small file by default?
Date: Tue, 30 Oct 2012 19:04:59 +0800	[thread overview]
Message-ID: <508FB45B.9040101@gmail.com> (raw)

Hi all,

I am testing my btrfs root partition with "max_inline=0", and 64k leaf size for weeks and it seems that it is fine.


AFAIK btrfs inline small files into metadata by default, I am curious why?

If there is only a few small files, then there will be neither effect nor benefit at all
If there is a lot of small files, then the size of metadata will be undesirable due to deduplication

there are also some email threads related to problem of metadata inline (i don't know whether they are fixed in recent kernel):
http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg16295.html
http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg05265.html

How about turning off inline so that btrfs works better "out of the box"?

ching




             reply	other threads:[~2012-10-30 11:05 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-30 11:04 ching [this message]
2012-10-30 12:04 ` Why btrfs inline small file by default? Felix Pepinghege
2012-10-30 12:17   ` cwillu
2012-10-30 21:40     ` ching
2012-10-30 22:14       ` Hugo Mills
2012-10-30 22:19         ` Hugo Mills
2012-10-30 23:47           ` ching
2012-10-31  0:12             ` David Sterba
2012-10-31 21:07               ` ching
2012-10-31  0:18             ` cwillu
2012-10-31  8:48               ` Ahmet Inan
2012-10-31  9:39                 ` cwillu
2012-10-31 10:48                   ` Ahmet Inan
2012-10-31 10:55                     ` Michael Kjörling
2012-10-31 11:10                       ` Ahmet Inan
2012-10-31 10:57                     ` cwillu
2012-10-31 11:56                       ` Michael Kjörling
2012-10-31 13:27                         ` Ahmet Inan
2012-10-31 13:44                         ` Roman Mamedov
2012-10-31 21:05               ` ching
2012-10-30 22:16       ` cwillu
2012-10-30 23:41         ` ching
2012-10-30 21:39   ` ching
2012-10-30 12:11 ` Felix Pepinghege
2012-10-30 12:13 ` Mitch Harder
2012-10-30 16:38 ` David Sterba

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