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Re: [LUG] ext4, anyone?

 

On Wed, 27 May 2009, James Fidell wrote:

> Tom Potts wrote:
>> On Wednesday 27 May 2009 09:31, Paul Hirst wrote:
>>> On Wed, 2009-05-27 at 08:22 +0100, Gordon Henderson wrote:
>>>> Anyone using ext4 yet?
>>> I've used it on a few desktops where I've installed Ubuntu Jaunty. I
>>> haven't seen it crash yet :-)
>>>
>>> That's about all I can offer for advice. Which I admit is next to
>>> useless! I've actually just started using XFS on a few servers where
>>> ext3 wasn't going to cut the mustard.
>> And why would that be?
>
> For instance, ext3 performance degrades badly where you have, say, lots
> of small files in one directory, as can happen with Maildir mail spools.

That particular one was "fixed" in ext3 some years ago with the dir_index 
option. Makes it use hashed b-trees to store the directory entries.

You can specify it at mkfs time, or add it to an existing partition via 
tune2fs and  e2fsck -D ...

Gordon

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