lkml.org 
[lkml]   [2008]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: ext3_dx_add_entry: Directory index full!
Date
On May 18, 2008, at 6:24 PM, Theodore Tso wrote:

> No, not a bug, but a limit. Ext3's hash directores are limited to a
> depth of 3 blocks, which normally isn't a problem if you are using a
> 4k blocksize, since each internal node is small; only 8 bytes. So you
> have a fanout of 508 for each internal node, and two internal nodes
> gets you to over 250,000 4k directory blocks. But with a 1k
> blocksize, the internal node fanout is only 124, so that only gets you
> a bit more than 15,000 1k directory blocks.

So, if I understand correctly, with a 1024 bytes blocksize, dir_index,
and inode size of 128 byte, the maximum number of files in a directory
is 123008. With 4k blocks this limit rises to 8,258,048 files?


\
 
 \ /
  Last update: 2008-05-19 01:11    [W:0.078 / U:2.476 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site