[culled zfs-discuss from CC, since its subscriber-only] On Thu, 2007-08-30 at 14:20 +0100, Christoph Hellwig wrote: > > On Thu, Aug 30, 2007 at 05:07:46PM +1000, Nathan Scott wrote: > > To improve metadata performance, you have many options with XFS > (which > > ones are useful depends on the type of metadata workload) - you can > try > > a v2 format log, and mount with "-o logbsize=256k", try increasing > the > > directory block size (e.g. mkfs.xfs -nsize=16k, etc), and also the > log > > size (mkfs.xfs -lsize=XXXXXXb). > > Okay, these suggestions are one too often now. v2 log and large > logs/log > buffers are the almost universal suggestions, and we really need to > make > these defaults. Possibly. Far more importantly for XFS, there really needs to be some way for RAID drivers to say "even though I support write barriers, its not a good idea for filesystems to enable write barriers by default on me". Enabling write barriers everywhere, by default, seems to have a far worse impact than any mkfs/mount option tweaking. > XFS is already the laughing stock of the Linux community > due to it's absurdely bad default settings. Oh, _thats_ what everyone's laughing at? cheers. -- Nathan - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
