From: "Jörn Engel" <joern@lazybastard.org>
To: Matt Mackall <mpm@selenic.com>
Cc: Theodore Tso <tytso@mit.edu>, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] TileFS - a proposal for scalable integrity checking
Date: Wed, 2 May 2007 15:18:20 +0200 [thread overview]
Message-ID: <20070502131818.GA20776@lazybastard.org> (raw)
In-Reply-To: <20070430175926.GU11115@waste.org>
On Mon, 30 April 2007 12:59:26 -0500, Matt Mackall wrote:
>
> We could eliminate the block bitmap, but I don't think there's much
> reason to. It improves allocator performance with negligible footprint
> and improves redundancy.
LogFS uses that scheme and it costs dearly. Walking the rmap to figure
out which blocks are used and which aren't can approach fsck time when
the filesystem gets full.
Jörn
--
"Security vulnerabilities are here to stay."
-- Scott Culp, Manager of the Microsoft Security Response Center, 2001
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next prev parent reply other threads:[~2007-05-02 13:22 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-28 22:05 [RFC] TileFS - a proposal for scalable integrity checking Matt Mackall
2007-04-29 12:21 ` Jörn Engel
2007-04-29 12:57 ` Matt Mackall
2007-04-29 15:47 ` Jörn Engel
2007-05-09 5:56 ` Valerie Henson
2007-05-09 10:12 ` Jörn Engel
2007-04-29 15:58 ` Jörn Engel
2007-04-29 16:24 ` Matt Mackall
2007-04-29 16:34 ` Andi Kleen
2007-04-29 16:05 ` Jörn Engel
2007-04-29 16:09 ` Matt Mackall
2007-04-29 23:23 ` Theodore Tso
2007-04-30 1:40 ` Matt Mackall
2007-04-30 17:26 ` Theodore Tso
2007-04-30 17:59 ` Matt Mackall
2007-05-02 13:18 ` Jörn Engel [this message]
2007-05-02 13:32 ` Jörn Engel
2007-05-02 15:37 ` Matt Mackall
2007-05-02 16:35 ` Jörn Engel
2007-05-09 7:56 ` Valerie Henson
2007-05-09 11:16 ` Nikita Danilov
2007-05-09 18:56 ` Valerie Henson
2007-05-09 19:19 ` Nikita Danilov
2007-05-09 17:06 ` Matt Mackall
2007-05-09 18:59 ` Valerie Henson
2007-05-09 19:51 ` Matt Mackall
2007-05-10 0:03 ` Jörn Engel
2007-05-11 9:46 ` Valerie Henson
2007-05-11 15:55 ` Matt Mackall
2007-05-09 19:01 ` Valerie Henson
2007-05-09 20:05 ` Matt Mackall
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