That seems to have done the trick. Thanks to everyone who help! This looks more like what I would expect... # time dd if=/dev/zero of=/tmp/disktest count=160 bs=65536 160+0 records in 160+0 records out 10485760 bytes (10 MB) copied, 0.109778 s, 95.5 MB/s real 0m0.116s user 0m0.000s sys 0m0.128s # time dd if=/dev/zero of=/mnt/gluster/disktest count=160 bs=65536 160+0 records in 160+0 records out 10485760 bytes (10 MB) copied, 0.817427 s, 12.8 MB/s real 0m1.182s user 0m0.000s sys 0m0.004s # time dd if=/dev/zero of=/tmp/disktest count=1600 bs=65536 1600+0 records in 1600+0 records out 104857600 bytes (105 MB) copied, 1.10989 s, 94.5 MB/s real 0m1.122s user 0m0.000s sys 0m1.116s # time dd if=/dev/zero of=/mnt/gluster/disktest count=1600 bs=65536 1600+0 records in 1600+0 records out 104857600 bytes (105 MB) copied, 2.31927 s, 45.2 MB/s real 0m2.671s user 0m0.000s sys 0m0.012s On Fri, Jan 23, 2009 at 10:22 AM, Anand Avati <avati at zresearch.com> wrote: > > # time dd if=/dev/zero of=/mnt/gluster/disktest count=10240 bs=1024 > > Please try with a larger block size like 64KB or higher. Low block > sizes are very expensive for network or fuse based filesystems. > > avati > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://zresearch.com/pipermail/gluster-users/attachments/20090123/1095717c/attachment.htm
