Drive speed (SSD - old Apple drive):
root@odroidxu4:~# hdparm -tT /dev/sda1
/dev/sda1:
Timing cached reads: 2154 MB in 2.00 seconds = 1078.47 MB/sec
Timing buffered disk reads: 1012 MB in 3.00 seconds = 337.16 MB/sec
root@odroidxu4:~# dd if=/dev/zero of=/root/testfile bs=1M count=100 oflag=direct
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 0.356716 s, 294 MB/s
root@odroidxu4:~#