On 05/17/2010 08:02 AM, Alexander Graf wrote:
My concern is that ext3 exaggerates the cost of fsync() which will result in
diminishing value over time for this feature as people move to ext4/btrfs.
There will be ext3 file systems for years out. Just because people can use
better and faster file systems doesn't mean they do. And I'm sure they can't
always choose. If anything, I can try and see what the numbers look like for
xfs.
But ext3 with barrier=1 is pretty uncommon in practice. Another data
point would be an ext3 host file system with barrier=0.
Regards,
Anthony Liguori
Alex
