Samsung KLM1GWEPD-B031 8GB eMMC
BananaPi-M64 @ 816 MHz, MMC2 running at 8-bit DDR52, Linux 4.9.0-rc8 w/ patches
# fstrim /data
# iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2
    KB  reclen   write rewrite    read    reread    read   write
102400       4    6659    6991    13226    13205   11522    6817
102400      16   18840   19368    30086    30095   27717   18544
102400     512   27645   27171    41736    41761   41577   26975
102400    1024   27480   27711    41993    42016   41905   27276
102400   16384   26777   28035    42230    42262   42273   27562