iozone on BPi M2+ eMMC with 4.9

        Command line used: iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random
              kB  reclen    write  rewrite    read    reread    read     write
          102400       4     3681     2741    13927    13913    11647     2436
          102400      16     8078     6271    30265     7623    25678     5558
          102400     512     6308     6165    47665    47623    47667     6477
          102400    1024     6411     6420    48354    48300    48263     6038
          102400   16384     6211     6466    53019    69986    69921     6257