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Re: The maximum number of files under a folder
- From: Theodore Tso <tytso mit edu>
- To: liuyue <liuyue ncic ac cn>
- Cc: John Nelson <articpenguin3800 gmail com>, "ext3-users redhat com" <ext3-users redhat com>
- Subject: Re: The maximum number of files under a folder
- Date: Mon, 17 Mar 2008 09:32:07 -0400
On Mon, Mar 17, 2008 at 03:40:36PM +0800, liuyue wrote:
> Theodore Tso,
>
> In 64bit system, directory size can not be bigger than 2GB?
No, because the high 32-bits for i_size are overloaded to store the
directory creation acl.
In practice, you really don't want to have a directory that huge
anyway. Iterating through it all with readdir() gets horribly slow,
and applications that try do anything with really huge directories
would be well advised to use a database, because they will get *much*
better performance that way....
- Ted
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