Clearfog PRO with Linux 4.12.4-mvebu Samsung 840 PRO utilization: iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 random random kB reclen write rewrite read reread read write 102400 4 62501 101691 98761 94430 34522 93050 102400 16 183325 215091 231439 232948 101667 171875 102400 512 301985 307789 341261 344567 328849 309560 102400 1024 294818 309177 345099 347791 339763 309775 102400 16384 271066 344426 384226 388587 387169 346825 2 x Samsung 840 PRO in RAID0, ext4 utilization: random random kB reclen write rewrite read reread read write 102400 4 67614 95508 94561 94984 32561 74157 102400 16 174075 200947 222430 223840 109654 199578 102400 512 307905 294689 317652 308007 307057 268841 102400 1024 307821 317784 327007 330213 322851 317024 102400 16384 286193 383463 394221 398474 397951 374333   Logs: http://sprunge.us/CfRS  Controller temperature is stable at 64°C, network utilization is also at top speed.  Card was donated via Amazan wish list. Thank you!   Hummingboard 2 with Linux 3.14.79-cubox (mainline not working out of the box)
Not that impressive as Clearfog,  but works.  random random kB reclen write rewrite read reread read write 102400 4 28502 39271 37895 37983 22325 38821 102400 16 68494 80988 69940 70511 53264 80047 102400 512 116594 118132 93789 94280 92828 118884 102400 1024 138185 140277 122610 123717 120853 139393 102400 16384 183976 183169 151745 153813 151890 179652 Logs: http://sprunge.us/OeMY
  Espressobin 2 x Samsung PRO 840, RAID 0, BTRFS
http://sprunge.us/iBFS random random kB reclen write rewrite read reread read write 102400 4 21547 20493 37509 37024 21747 17728 102400 16 61955 56230 93068 93795 64349 45724 102400 512 188611 186828 175688 176961 172098 185109 102400 1024 215817 216559 189477 191846 188481 214727 102400 16384 226764 228502 229162 238883 222826 229894 Intel N4200 / Up2board Square 1 x Samsung 840 PRO random random kB reclen write rewrite read reread read write 102400 4 65003 76031 93147 92507 32024 73029 102400 16 146880 175968 187734 224409 106025 163916 102400 512 244782 225736 348401 357949 343145 221037 102400 1024 239203 247778 313476 313372 309170 248540 102400 16384 254396 266530 357708 368483 370731 276458 2 x Samsung 840 PRO in RAID 0 random random kB reclen write rewrite read reread read write 102400 4 61680 70018 67650 66635 18221 67984 102400 16 145869 164784 147884 143877 46355 160169 102400 512 230140 219870 213069 199087 213587 210607 102400 1024 273150 271782 257206 279397 275632 271896 102400 16384 314895 311385 365117 376228 375081 317790 Native onboard SATA 1 x Samsung 840 PRO random random kB reclen write rewrite read reread read write 102400 4 70611 80842 100647 97276 30072 77666 102400 16 194707 208422 239401 224119 102211 218393 102400 512 346735 410867 401536 425167 396013 412711 102400 1024 374032 366490 378981 394321 382352 368195 102400 16384 441298 430380 475063 486540 482151 414518 Reference: A20's native SATA
 
This document is work in progress ...