There's strong block-size dependecy. Smaller bs are even slower -- speed maxes out at ~ 1MB/sec for dd wih bs > 512K dd if=/dev/zero of=/mnt/NFS4/NAS1/dump-client-file bs=16k count=2k 2048+0 records in 2048+0 records out 33554432 bytes (34 MB) copied, 443.592 s, 75.6 kB/s dd if=/dev/zero of=/mnt/NFS4/NAS1/dump-client-file bs=256k count=128 128+0 records in 128+0 records out 33554432 bytes (34 MB) copied, 72.2837 s, 464 kB/s dd if=/dev/zero of=/mnt/NFS4/NAS1/dump-client-file bs=512k count=64 64+0 records in 64+0 records out 33554432 bytes (34 MB) copied, 33.7238 s, 995 kB/s dd if=/dev/zero of=/mnt/NFS4/NAS1/dump-client-file bs=1M count=32 32+0 records in 32+0 records out 33554432 bytes (34 MB) copied, 31.7636 s, 1.1 MB/s dd if=/dev/zero of=~/dump-client-file bs=1M count=32 time rsync -P ~/dump-client-file /mnt/NFS4/NAS1/dump-client-file dump-client-file2 33,554,432 100% 484.97kB/s 0:01:07 (xfr#1, to-chk=0/1) real 1m8.140s user 0m0.172s sys 0m0.083s LT -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org