11 Jul
2012
11 Jul
'12
4:49 p.m.
On Wed, Jul 11, 2012 at 11:29 AM, Colin Simpson Colin.Simpson@iongeo.com wrote:
But think yourself lucky, BTRFS on Fedora 16 was much worse. This was the time it took me to untar a vlc tarball.
F16 to RHEL5 - 0m 28.170s F16 to F16 ext4 - 4m 12.450s F16 to F16 btrfs - 14m 31.252s
A quick test seems to say this is better in F17 (3m7.240s on BTRFS but still looks like we are hitting NFSv4 issues for this but btrfs itself is better).
I wonder if the real issue is that NFSv4 waits for a directory change to sync to disk but linux wants to flush the whole disk cache before saying the sync is complete.
--
Les Mikesell
lesmikesell@gmail.com