Nanosecond date resolution

Eric Sandeen sandeen at
Fri Jul 4 17:04:24 UTC 2008

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.


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