On Sat, 27 Feb 2010, Justin Piszcz wrote:
On Fri, 26 Feb 2010, Eric Sandeen wrote: > Eric Sandeen wrote: > > Oh, you need very recent util-linux-ng as well, and use libblkid from there > with: > > [e2fsprogs] # ./configure --disable-libblkid > > Otherwise you can just feed mkfs.ext4 stripe & stride manually. > > -Eric >
I also tried with the default chunk size (64KiB) incase ext4 had a problem with chunk sizes > 64KiB, the results were the same for ext4, I also tried ext2 & ext3 as well just to see what their performance would be: p63:~# mkfs.ext2 -b 4096 -E stride=16,stripe-width=176 /dev/md0 p63:~# mount /dev/md0 /r1 p63:/r1# dd if=/dev/zero of=file bs=1M count=10240 10737418240 bytes (11 GB) copied, 19.9434 s, 538 MB/s p63:/r1# p63:~# mkfs.ext3 -b 4096 -E stride=16,stripe-width=176 /dev/md0 p63:~# mount /dev/md0 /r1 p63:/r1# dd if=/dev/zero of=file bs=1M count=10240 10737418240 bytes (11 GB) copied, 31.0195 s, 346 MB/s p63:~# mkfs.ext4 -b 4096 -E stride=16,stripe-width=176 /dev/md0 p63:~# mount /dev/md0 /r1 p63:/r1# dd if=/dev/zero of=file bs=1M count=10240 10737418240 bytes (11 GB) copied, 35.3866 s, 303 MB/s And, for comparison, XFS: p63:~# mkfs.xfs -f /dev/md0 > /dev/null 2>&1 p63:~# mount /dev/md0 /r1 p63:~# cd /r1 p63:/r1# dd if=/dev/zero of=file bs=1M count=10240 10240+0 records in 10240+0 records out 10737418240 bytes (11 GB) copied, 18.1527 s, 592 MB/s p63:/r1# -- 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
