* Default size of journal?
@ 2010-01-10 19:12 Jeff Layton
2010-01-11 6:41 ` Andreas Dilger
0 siblings, 1 reply; 4+ messages in thread
From: Jeff Layton @ 2010-01-10 19:12 UTC (permalink / raw)
To: linux-ext4
Good afternoon!
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?
TIA!
Jeff
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Default size of journal?
2010-01-10 19:12 Default size of journal? Jeff Layton
@ 2010-01-11 6:41 ` Andreas Dilger
2010-01-11 11:37 ` Jeff Layton
0 siblings, 1 reply; 4+ messages in thread
From: Andreas Dilger @ 2010-01-11 6:41 UTC (permalink / raw)
To: Jeff Layton; +Cc: linux-ext4
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.
Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Default size of journal?
2010-01-11 6:41 ` Andreas Dilger
@ 2010-01-11 11:37 ` Jeff Layton
2010-01-11 11:40 ` Jeff Layton
0 siblings, 1 reply; 4+ messages in thread
From: Jeff Layton @ 2010-01-11 11:37 UTC (permalink / raw)
To: Andreas Dilger; +Cc: linux-ext4
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?
Thanks!
Jeff
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Default size of journal?
2010-01-11 11:37 ` Jeff Layton
@ 2010-01-11 11:40 ` Jeff Layton
0 siblings, 0 replies; 4+ messages in thread
From: Jeff Layton @ 2010-01-11 11:40 UTC (permalink / raw)
To: linux-ext4; +Cc: Andreas Dilger
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
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-01-11 11:44 UTC | newest]
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2010-01-10 19:12 Default size of journal? Jeff Layton
2010-01-11 6:41 ` Andreas Dilger
2010-01-11 11:37 ` Jeff Layton
2010-01-11 11:40 ` Jeff Layton
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