@Abang Noob:
ini vps saya yg di Jacksonville @jax07
root@jacks:~# dd if=/dev/zero of=test.io bs=4k count=128k conv=fdatasync
131072+0 records in
131072+0 records out
536870912 bytes (537 MB) copied, 75.9051 s, 7.1 MB/s
root@jacks:~# dd if=/dev/zero of=test.io bs=4k count=128k conv=fdatasync
131072+0 records in
131072+0 records out
536870912 bytes (537 MB) copied, 23.4238 s, 22.9 MB/s
root@jacks:~# dd if=/dev/zero of=test.io bs=4k count=128k conv=fdatasync
131072+0 records in
131072+0 records out
536870912 bytes (537 MB) copied, 15.7377 s, 34.1 MB/s
root@jacks:~# dd if=/dev/zero of=test.io bs=4k count=128k conv=fdatasync
131072+0 records in
131072+0 records out
536870912 bytes (537 MB) copied, 35.8954 s, 15.0 MB/s
root@jacks:~# dd if=/dev/zero of=test.io bs=4k count=128k conv=fdatasync
131072+0 records in
131072+0 records out
536870912 bytes (537 MB) copied, 14.832 s, 36.2 MB/s