2012/3/1 Hillf Danton [off-list ref]:

On Thu, Mar 1, 2012 at 9:35 PM, Jacek Luczak [off-list ref] wrote:

quoted

While I was about to grab acp I've noticed seekwatcher with made my day :)

seekwatcher run of tar cf to eliminate writes (all done on 3.2.7):
1) btrfs: http://dozzie.jarowit.net/~dozzie/luczajac/tar_btrfs.png
2) ext4: http://dozzie.jarowit.net/~dozzie/luczajac/tar_ext4.png
3) both merged: http://dozzie.jarowit.net/~dozzie/luczajac/tar_btrfs_ext4.png

I will send acp results soon.

Would you please take reiserfs into account?

As of now not (lack of time) but I'm pretty close to consider XFS in
the game. Whenever I will have more time and there won't be a pressure
on giving host back to production I will redo same tests for reiserfs.

Now I'm focused on the userspace sorting results.

-Jacek