linux-ext4 - Re: Default size of journal?

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Message-ID: <4B4B0E11.8000101@att.net>
Date:	Mon, 11 Jan 2010 06:40:01 -0500
From:	Jeff Layton <laytonjb@....net>
To:	linux-ext4@...r.kernel.org
CC:	Andreas Dilger <adilger@....com>
Subject: Re: Default size of journal?

Jeff Layton wrote:
> Andreas Dilger wrote:
>> On 2010-01-10, at 15:12, Jeff Layton wrote:
>>> I'm sorry if this is a repeat, but I was wondering what the
>>> default journal size is for ext4  when it's built on a single
>>> partition? Or does it vary in size as needed?
>>
>> It varies with the size of the filesystem.  I believe the largest 
>> default size is 128MB, but I don't know offhand what the cutoff size is.
>
> Is there a simple formula for how the journal size varies with the
> file system size? Perhaps linear?
Disregard - Eric answered it for me (didn't finish all my email before
responding). Apologies.

Jeff

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