From: Kalpak Shah <kalpak@linsyssoft.com>
To: Folkert van Heusden <folkert@vanheusden.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: statistics of filesystem-journal usage
Date: Fri, 11 May 2007 19:54:26 +0530 [thread overview]
Message-ID: <1178893466.6016.5.camel@garfield> (raw)
In-Reply-To: <20070511140004.GD6261@vanheusden.com>
On Fri, 2007-05-11 at 16:00 +0200, Folkert van Heusden wrote:
> Hi,
>
> Maybe it is a nice idea to export statistics on the usage of a journal
> of a filesystem as well. That way one can more easy see if it would help
> to put a journal on an other harddisk.
There is a patch posted on linux-ext4 which maintains the journal
statistics such as transaction sizes and their lifetimes. These stats
are provided through procfs and can only be used with ext4 since ext2/3
still use the jbd layer.
You can see the patch here:
http://lists.openwall.net/linux-ext4/2007/04/02/6
- Kalpak.
>
>
> Folkert van Heusden
>
prev parent reply other threads:[~2007-05-11 14:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-11 14:00 statistics of filesystem-journal usage Folkert van Heusden
2007-05-11 14:24 ` Kalpak Shah [this message]
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