Nanosecond date resolution

[Eric Sandeen]

Pau Garcia i Quiles wrote:
> Hello,
> 
> By default ext3 stores file with 1 second date resolution but I have  
> read it is possible to enable big inode and that will improve  
> resolution to 1 nanosecond.
> 
> How can I enable the 1-nanosecond date resolution? I've found some  
> mails by Alex Tomas, Andi Kleen and Andreas Gruenbacher to the linux  
> filesystems mailing list but no clear way to enable this feature. Will  
> it harm performance? (I do know it consumes more space)
> 
> Thank you
> 

ext4 makes use of larger inodes for this purpose, but ext3 does not.

-Eric