> From: Mark Kirkwood [mailto:markir@xxxxxxxxxxxxxxx] > Mark Wong wrote: > > On Mon, Aug 4, 2008 at 10:56 PM, Gregory S. Youngblood > <greg@xxxxxxxxx> wrote: > > > >> I recently ran some tests on Ubuntu Hardy Server (Linux) comparing > JFS, XFS, > >> and ZFS+FUSE. It was all 32-bit and on old hardware, plus I only > used > >> bonnie++, so the numbers are really only useful for my hardware. > >> > >> What parameters were used to create the XFS partition in these > tests? And, > >> what options were used to mount the file system? Was the kernel 32- > bit or > >> 64-bit? Given what I've seen with some of the XFS options (like > lazy-count), > >> I am wondering about the options used in these tests. > >> > > > > The default (no arguments specified) parameters were used to create > > the XFS partitions. Mount options specified are described in the > > table. This was a 64-bit OS. > > > I think it is a good idea to match the raid stripe size and give some > indication of how many disks are in the array. E.g: > > For a 4 disk system with 256K stripe size I used: > > $ mkfs.xfs -d su=256k,sw=2 /dev/mdx > > which performed about 2-3 times quicker than the default (I did try > sw=4 > as well, but didn't notice any difference compared to sw=4). [Greg says] I thought that xfs picked up those details when using md and a soft-raid configuration.
