On Wed, Aug 20, 2008 at 02:39:16PM -0700, Andrew Morton wrote: > On Thu, 21 Aug 2008 00:25:55 +0300 (MET DST) > Szabolcs Szakacsits <szaka@xxxxxxxxxxx> wrote: > > I ran compilebench on kernel 2.6.26 with freshly formatted volumes. > > The behavior of NILFS2 was interesting. > > > > Its peformance rapidly degrades to the lowest ever measured level > > (< 1 MB/s) but after a while it recovers and gives consistent numbers. > > However it's still very far from the current unstable btrfs performance. > > The results are reproducible. > > > > MB/s Runtime (s) > > ----- ----------- > > btrfs unstable 17.09 572 > > ext3 13.24 877 > > btrfs 0.16 12.33 793 > > nilfs2 2nd+ runs 11.29 674 > > ntfs-3g 8.55 865 > > reiserfs 8.38 966 > > nilfs2 1st run 4.95 3800 > > xfs 1.88 3901 > > err, what the heck happened to xfs? Is this usual? No, definitely not usual. I suspect it's from an old mkfs and barriers being used. What is the output of the xfs.mkfs when you make the filesystem and what mount options being used? Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
